Analysis by: Karen Ivy Titiwa
ALIASES:

Trojan.GenericKD.32770290(BITDEFENDER); PWS:Win32/Delf.R!MTB(MICROSOFT)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

As of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size: 131,072 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 10 Jul 2020
Payload: Connects to URLs/IPs, Downloads files

Arrival Details

This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan Spy drops the following files:

  • %User Temp%\{random folder name}\api-ms-win-core-console-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-datetime-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-debug-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-errorhandling-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-file-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-file-l1-2-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-file-l2-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-handle-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-heap-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-interlocked-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-libraryloader-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-localization-l1-2-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-memory-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-namedpipe-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-processenvironment-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-processthreads-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-processthreads-l1-1-1.dll
  • %User Temp%\{random folder name}\api-ms-win-core-profile-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-rtlsupport-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-string-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-synch-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-synch-l1-2-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-sysinfo-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-timezone-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-util-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-conio-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-convert-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-environment-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-filesystem-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-heap-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-locale-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-math-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-multibyte-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-private-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-process-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-runtime-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-stdio-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-string-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-time-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-utility-l1-1-0.dll
  • %User Temp%\{random folder name}\freebl3.dll
  • %User Temp%\{random folder name}\mozglue.dll
  • %User Temp%\{random folder name}\msvcp140.dll
  • %User Temp%\{random folder name}\nss3.dll
  • %User Temp%\{random folder name}\nssdbm3.dll
  • %User Temp%\{random folder name}\softokn3.dll
  • %User Temp%\{random folder name}\ucrtbase.dll
  • %User Temp%\{random folder name}\vcruntime140.dll
  • %User Temp%\{random file name}.tmp

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following processes:

  • %User Temp%\rc.exe
  • %User Temp%\ac.exe
  • %User Temp%\ds1.exe
  • %User Temp%\ds2.exe
  • "%System%\cmd.exe" /c "%System%\timeout.exe 3 & del "{malware file name}.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Download Routine

This Trojan Spy connects to the following website(s) to download and execute a malicious file:

  • http://{BLOCKED}smith.ug/rc.exe
  • http://{BLOCKED}smith.ug/ac.exe
  • http://{BLOCKED}smith.ug/ds1.exe
  • http://{BLOCKED}smith.ug/ds2.exe

It saves the files it downloads using the following names:

  • %User Temp%\rc.exe
  • %User Temp%\ac.exe
  • %User Temp%\ds1.exe
  • %User Temp%\ds2.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

As of this writing, the said sites are inaccessible.

Information Theft

This Trojan Spy gathers the following data:

  • Login data, Cookies and Web data from the following browsers:
    • GoogleChrome
    • GoogleChromeSxS
    • Xpom
    • YandexBrowser
    • ComodoDragon
    • Amigo
    • Orbitum
    • Bromium
    • Chromium
    • Nichrome
    • RockMelt
    • 360Browser
    • Vivaldi
    • Opera
    • GoBrowser
    • Sputnik
    • Kometa
    • Uran
    • QIPSurf
    • Epic
    • Brave
    • CocCoc
    • CentBrowser
    • 7Star
    • ElementsBrowser
    • TorBro
    • Suhba
    • SaferBrowser
    • Mustang
    • Superbird
    • Chedot
    • Torch
    • Mozilla Firefox
    • Waterfox
    • Pale Moon
    • Thunderbird
    • Ice Dragon
    • Cyberfox
  • It gathers information from:
    • Outlook
  • Account information from FTP managers:
    • Winscp
    • Filezilla
    • PSI
  • Cryptocurrency / BTC wallets:
    • monero
    • ethereum
    • wallet
    • trezor
    • blockchain
    • electrum
    • crypto
    • krypto
    • btc
    • key
    • phrase
    • recover
    • code
    • private
    • exodus
    • jaxx
    • coinbase
    • btcmarket
    • bitpay
    • bitpanda
    • bittrex
    • bitrex
    • coinomi
    • metamask
    • myetherwallet
    • electrum
    • bitcoin
    • bithumb
    • hitbtc
    • bitflyer
    • kucoin
    • huobi
    • poloniex
    • kraken
    • okex
    • binance
    • bitstamp
    • bitfinex
    • gdax
    • bitmex
    • cripto
    • guarda
  • Searches for wallet files on these directories:
    • Windows
    • Program Files
    • Program Files (x86)
    • AppData\Local
    • AppData\LocalLow
    • AppData\Roaming
    • ProgramData
    • TEMP
    • PUBLIC
    • System32
    • Keygen
    • Crack
    • Patch
    • Games
    • Game
    • Music
    • Movies
    • Mp3
    • Adobe
    • xampp
    • SteamGames
    • steamapps
  • Credit card information
  • Autofills
  • Computer Name
  • User Name
  • Country Code
  • System Language
  • CPU count
  • CPU Model
  • Screen Resolution
  • RAM

Stolen Information

This Trojan Spy sends the gathered information via HTTP POST to the following URL:

  • http://{BLOCKED}smith.ug//index.php

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 15.986.03
FIRST VSAPI PATTERN DATE: 12 Jul 2020
VSAPI OPR PATTERN File: 15.987.00
VSAPI OPR PATTERN Date: 13 Jul 2020

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

     Troj.Win32.TRX.XXPE50FFF036

Step 2

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 3

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 4

Identify and terminate files detected as TrojanSpy.Win32.RACCOONSTEALER.THGAOBO

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 5

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %User Temp%\{random folder name}\api-ms-win-core-console-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-datetime-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-debug-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-errorhandling-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-file-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-file-l1-2-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-file-l2-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-handle-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-heap-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-interlocked-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-libraryloader-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-localization-l1-2-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-memory-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-namedpipe-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-processenvironment-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-processthreads-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-processthreads-l1-1-1.dll
  • %User Temp%\{random folder name}\api-ms-win-core-profile-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-rtlsupport-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-string-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-synch-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-synch-l1-2-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-sysinfo-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-timezone-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-core-util-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-conio-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-convert-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-environment-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-filesystem-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-heap-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-locale-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-math-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-multibyte-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-private-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-process-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-runtime-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-stdio-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-string-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-time-l1-1-0.dll
  • %User Temp%\{random folder name}\api-ms-win-crt-utility-l1-1-0.dll
  • %User Temp%\{random folder name}\freebl3.dll
  • %User Temp%\{random folder name}\mozglue.dll
  • %User Temp%\{random folder name}\msvcp140.dll
  • %User Temp%\{random folder name}\nss3.dll
  • %User Temp%\{random folder name}\nssdbm3.dll
  • %User Temp%\{random folder name}\softokn3.dll
  • %User Temp%\{random folder name}\ucrtbase.dll
  • %User Temp%\{random folder name}\vcruntime140.dll
  • %User Temp%\{random file name}.tmp
  • %User Temp%\rc.exe
  • %User Temp%\ac.exe
  • %User Temp%\ds1.exe
  • %User Temp%\ds2.exe

Step 6

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win32.RACCOONSTEALER.THGAOBO. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:

Step 7

Trend Micro Mobile Security Solution

Trend Micro Mobile Security Personal Edition protects Android and iOS smartphones and tablets from malicious and Trojanized applications. It blocks access to malicious websites, increase device performance, and protects your mobile data. You may download the Trend Micro Mobile Security apps from the following sites:


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