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Analysis

  • max time kernel
    146s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/03/2025, 13:59

General

  • Target

    RFQ.exe

  • Size

    881KB

  • MD5

    768bed9843a8a7c96699b27fc40b8819

  • SHA1

    4ae495c3540252bef39276bf6e9fc84435f7b7bb

  • SHA256

    aa653ad0d107b2d7ab98d4ede0eef147b73fbd7eb2f522f0bf608f833daebe34

  • SHA512

    e23d433ac20532c512d2f2db1badbf4a2e43d2c28ff73553e2de79d82a012dbe1afe81d59bc830f4606ff3b54b08cbbcbd2b6448cdb12a3246ffb4607ac93539

  • SSDEEP

    12288:TfNeE6xIVKGJA1R1MbXgf+GH4oGSlhA8b06JJe4Ii3QOeGiTJyxwC1ht2ddT+:wE6xcA1LMbDqXm8b0iJ7r6cxvE

Malware Config

Extracted

Family

darkcloud

C2

https://api.telegram.org/bot7725030292:AAFHYtQUWDdOhIko2DIqyexjh4XvUaOA1Fs/sendMessage?chat_id=6732456666

Signatures

  • DarkCloud

    An information stealer written in Visual Basic.

  • Darkcloud family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1392
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1760
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wOPQRmK.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4092
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wOPQRmK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp49F.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1944
    • C:\Users\Admin\AppData\Local\Temp\RFQ.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
      2⤵
        PID:3216
      • C:\Users\Admin\AppData\Local\Temp\RFQ.exe
        "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:4884

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      6781a07d15aa05cae5229e04c0025790

      SHA1

      956171a8e70bb002c0828a03e1df65044da4da85

      SHA256

      107a1852fec5fdb84ec502649e26672661a2c3af92e013e2d04445466434dc0e

      SHA512

      05aa76aa55d720a80a0e07e02f864cfdf49e5928524d169c8ba9296a21c8b0c86cb5b26edff862c9366d7fa4a796fa5b9f9cb7ec47429831384df9bb0c341f46

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xr5q3ngv.p1x.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp49F.tmp

      Filesize

      1KB

      MD5

      35d70da459ef4d813ba73c3190079601

      SHA1

      bec50d4d968848f09313b3a96c5835d04851f56e

      SHA256

      4cf036bfe77bd7caed068c11ab4590b8797618df5496ebdaf8060df4d8c2b3c0

      SHA512

      3bc651e0dbf61ceae72bfc93d63e1e031c52f11515181a1cfcafd4949e4df70a08cfe54c8276ec385d96ec782e8df9938f5b6d130b6890246b203ee3122e5ac1

    • memory/1392-4-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/1392-5-0x00000000052D0000-0x00000000052DA000-memory.dmp

      Filesize

      40KB

    • memory/1392-6-0x0000000005470000-0x000000000550C000-memory.dmp

      Filesize

      624KB

    • memory/1392-7-0x0000000005610000-0x0000000005620000-memory.dmp

      Filesize

      64KB

    • memory/1392-8-0x000000007536E000-0x000000007536F000-memory.dmp

      Filesize

      4KB

    • memory/1392-9-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/1392-10-0x0000000006470000-0x000000000652C000-memory.dmp

      Filesize

      752KB

    • memory/1392-3-0x0000000005140000-0x00000000051D2000-memory.dmp

      Filesize

      584KB

    • memory/1392-2-0x0000000005650000-0x0000000005BF4000-memory.dmp

      Filesize

      5.6MB

    • memory/1392-0-0x000000007536E000-0x000000007536F000-memory.dmp

      Filesize

      4KB

    • memory/1392-53-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/1392-1-0x0000000000660000-0x0000000000742000-memory.dmp

      Filesize

      904KB

    • memory/1760-78-0x00000000075A0000-0x00000000075BA000-memory.dmp

      Filesize

      104KB

    • memory/1760-16-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/1760-20-0x00000000051A0000-0x00000000051C2000-memory.dmp

      Filesize

      136KB

    • memory/1760-21-0x00000000053C0000-0x0000000005426000-memory.dmp

      Filesize

      408KB

    • memory/1760-19-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/1760-34-0x0000000005CA0000-0x0000000005FF4000-memory.dmp

      Filesize

      3.3MB

    • memory/1760-15-0x0000000004CF0000-0x0000000004D26000-memory.dmp

      Filesize

      216KB

    • memory/1760-92-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/1760-22-0x0000000005B30000-0x0000000005B96000-memory.dmp

      Filesize

      408KB

    • memory/1760-67-0x0000000070800000-0x000000007084C000-memory.dmp

      Filesize

      304KB

    • memory/1760-85-0x00000000078C0000-0x00000000078C8000-memory.dmp

      Filesize

      32KB

    • memory/1760-84-0x00000000078E0000-0x00000000078FA000-memory.dmp

      Filesize

      104KB

    • memory/1760-18-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/1760-82-0x00000000077D0000-0x00000000077DE000-memory.dmp

      Filesize

      56KB

    • memory/1760-80-0x0000000007820000-0x00000000078B6000-memory.dmp

      Filesize

      600KB

    • memory/1760-17-0x0000000005500000-0x0000000005B28000-memory.dmp

      Filesize

      6.2MB

    • memory/1760-77-0x0000000007C00000-0x000000000827A000-memory.dmp

      Filesize

      6.5MB

    • memory/4092-23-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/4092-52-0x0000000006310000-0x000000000635C000-memory.dmp

      Filesize

      304KB

    • memory/4092-54-0x0000000006830000-0x0000000006862000-memory.dmp

      Filesize

      200KB

    • memory/4092-55-0x0000000070800000-0x000000007084C000-memory.dmp

      Filesize

      304KB

    • memory/4092-79-0x0000000007600000-0x000000000760A000-memory.dmp

      Filesize

      40KB

    • memory/4092-65-0x0000000006810000-0x000000000682E000-memory.dmp

      Filesize

      120KB

    • memory/4092-81-0x0000000007790000-0x00000000077A1000-memory.dmp

      Filesize

      68KB

    • memory/4092-66-0x0000000007440000-0x00000000074E3000-memory.dmp

      Filesize

      652KB

    • memory/4092-83-0x00000000077D0000-0x00000000077E4000-memory.dmp

      Filesize

      80KB

    • memory/4092-50-0x0000000005D20000-0x0000000005D3E000-memory.dmp

      Filesize

      120KB

    • memory/4092-36-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/4092-35-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/4092-91-0x0000000075360000-0x0000000075B10000-memory.dmp

      Filesize

      7.7MB

    • memory/4884-46-0x0000000000400000-0x0000000000472000-memory.dmp

      Filesize

      456KB

    • memory/4884-47-0x0000000000400000-0x0000000000472000-memory.dmp

      Filesize

      456KB