Coinminer.Win64.MALXMR.TIAOODBZ

September 16, 2019

Modified by: Jay Bradley Nebre

ALIASES:

HEUR:RiskTool.Win32.Generic (Kaspersky)

PLATFORM:

Windows

OVERALL RISK RATING:

DAMAGE POTENTIAL:

DISTRIBUTION POTENTIAL:

REPORTED INFECTION:

INFORMATION EXPOSURE:

Threat Type: Coinminer
Destructiveness: No
Encrypted:
In the wild: Yes

OVERVIEW

Infection Channel: Downloaded from the Internet

This miner figured in the fileless GhostMiner that uses WMI Objects. GhostMiner is known to kill competing other miner payloads.

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

It uses the system's central processing unit (CPU) and/or graphical processing unit (GPU) resources to mine cryptocurrency.

TECHNICAL DETAILS

File Size: 10,487,890 bytes

File Type: EXE

Memory Resident: Yes

Initial Samples Received Date: 11 Sep 2019

Arrival Details

This Coinminer 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 Coinminer adds the following mutexes to ensure that only one of its copies runs at any one time:

Global\94fad2a28742b746497b862e6795115a_v2.13.0

Other Details

This Coinminer does the following:

It terminates itself if the following DLLs are found in the system:
- cmdvrt32.dll
- cmdvrt64.dll
- SbieDll.dll
- SxIn.dll
- SXIn64.dll
- dir_watch.dll
- api_log.dll
- api_log.x64.dll
- DbgHelp.dll
- WpeSpy.dll
- WSockHook.dll
It terminates itself if the following window names are found:
- PROCEXPL
- PROCMON_WINDOW_CLASS
- TCPViewClass
- PortmonClass
- ProcessHacker
- AnVirMainFrame
- Autoruns
- OLLYDBG
- OllyDbg
- pe--diy
- 1212121
- TIdaWindow
- WinDbgFrameClass
- dbgviewClass
- gdkWindowToplevel
- WSExplorer
- RegmonClass
- 18467-41
- SandboxieControlWndClass
- Sandboxie Control
It terminates itself if the following processes are found:
- SbieSvc
- SbieCtrl
- Cain
- Wireshark
- DumpCap
- TShark
- Fiddler
- APorts
- TcpView
- WSExplorer
- HttpAnalyzer
- HTTPDebugger
- NetworkTrafficView
- SmSniff
- SocketSniff
- WebSiteSniffer
- HTTPNetworkSniffer
- DNSQuerySniffer
- CPorts
- TcpLogView
- WSockExpert
- hookME
- CHKenCap
- IDAG
- IDAG64
- IDAQ
- IDAQ64
- WinDbg
- OllyDBG
- OllyICE
- ImmunityDebugger
- x32dbg
- x64dbg
- win32_remote
- win64_remote64
- DbgView
- Winhex
- PEiD
- DIE
- ExeInfoPE
- LordPE
- PEditor
- Stud_PE
- ImportREC
- PEStudio
- PE-Bear
- HipsDaemon
- SysDiag-GUI
- ZhuDongFangYu
- QHActiveDefense
- QQPCRTP
- SfAntibot
- RegMon
- RegShot
- FileMon
- ProcMon
- Systracer
- SysMon
- SysMon64
- Autoruns
- AutoRuns64
- TaskMgr.exe
- PerfMon
- ProcExp
- ProcExp64
- ProcessHacker
- Anvir
- PExp
- PExp64
- SystemExplorer
- IceSword
- WSysCheck
- PCHunter32
- PCHunter64
- PowerTool32
- PowerTool64
- AntiSpy
- 360taskmgr
- sysAnalyzer
- Proc_Analyzer
- Proc_Watch
- Sniff_Hit
- apimonitor-x86
- apimonitor-x64
- SysInspector
- JoeBoxControl
- JoeBoxServer
- ComputerZ_CN
It uses the following details for it's coinmining routine:
- Wallet ID: {BLOCKED}TBMoxgVXY4uJbYNjXfxfGkTdSWNQFFnKUeqVTSHYMq1aYASNUS4oYKR4UftLJ489XtdntdY8Gyeq9MpfuxJZXoRWg
- Mining pool:
  - pool.minexmr.com:80
  - sg.minexmr.com:80
  - ca.minexmr.com:80
  - fr.minexmr.com:80
  - de.minexmr.com:80
  - pool.minexmr.uk:80
  - pool.supportxmr.com:80
  - xmr-asia1.nanopool.org:14444
  - xmr.f2pool.com:13531
  - xmr-jp1.nanopool.org:14444
  - xmr-au1.nanopool.org:14444
  - xmr-eu1.nanopool.org:14444
  - xmr-us-east1.nanopool.org:14444
  - xmr-eu2.nanopool.org:14444
  - xmr-us-west1.nanopool.org:14444
- agent: giRMX/2.14.5 (Windows NT 6.1; Win64; x64) libuv/{libuv version} msvc/{msvc version}
- algorithm: cn, cn/r, cn/wow, cn/2, cn/1, cn/0, cn/half, cn/xtl, cn/msr, cn/xao, cn/rto, cn/gpu, cn/rwz, cn/zls, cn/double

It uses the system's central processing unit (CPU) and/or graphical processing unit (GPU) resources to mine cryptocurrency. This behavior makes the system run abnormally slow.

SOLUTION

Minimum Scan Engine: 9.850

FIRST VSAPI PATTERN FILE: 15.346.03

FIRST VSAPI PATTERN DATE: 05 Sep 2019

VSAPI OPR PATTERN File: 15.347.00

VSAPI OPR PATTERN Date: 06 Sep 2019

Step 1

Trend Micro products with the XGen technology detect this malware as

[ Learn More ]

Troj.Win32.TRX.XXPE50FFF031

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 Coinminer.Win64.MALXMR.TIAOODBZ

[ Learn More ]

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.
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.
If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 5

Scan your computer with your Trend Micro product to delete files detected as Coinminer.Win64.MALXMR.TIAOODBZ. 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:

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