Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-07-2024 23:45

General

  • Target

    PO 11072024.exe

  • Size

    999KB

  • MD5

    04a0409b44c06cd15f68cef8bdfc9b17

  • SHA1

    ec17ab0fb9a01fa208da02445056b68f30232520

  • SHA256

    f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48

  • SHA512

    48fad9e7c7a3a7686b308a4e1b0d122e00b964b6c179f31d54bd6207c9b085cb0aa246c7b4b6ec1f875d84f33582058b63353f8db11f20760f5084a3efb8b8ac

  • SSDEEP

    24576:iLl1+oR/hMvKHTnJkRvxAMAvu2lHu6wRudqGlXSo:AZqVxAzvuOKqfS

Malware Config

Extracted

Family

remcos

Botnet

5764576

C2

172.93.218.178:45667

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    765-XJJE0J

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 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).

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe
    "C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2472
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ppUSXdJgAIFILG.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3468
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ppUSXdJgAIFILG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF79E.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3480
    • C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe
      "C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe"
      2⤵
        PID:5100

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w3rkogda.svk.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpF79E.tmp

      Filesize

      1KB

      MD5

      8a95b7f85db23348fd1e456b30fedede

      SHA1

      89b5304104279657eb8982ad8cd58834c8bfc283

      SHA256

      0a41df1ae34d3417881f569b1ad05c40384e961cfb992596e49cdd240af644cd

      SHA512

      94aa7a20c03077738396e47198c374c5a4f80097b0d79fe85dfeea9d3fd31db2928c1dbc942b6b0f647a63c3d7715ef8e13a71a820f0ffaa38ad57a4e0a56977

    • memory/2472-6-0x0000000005EC0000-0x0000000005ED0000-memory.dmp

      Filesize

      64KB

    • memory/2472-3-0x00000000059C0000-0x0000000005A52000-memory.dmp

      Filesize

      584KB

    • memory/2472-4-0x0000000005A80000-0x0000000005A8A000-memory.dmp

      Filesize

      40KB

    • memory/2472-5-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/2472-2-0x0000000005ED0000-0x0000000006474000-memory.dmp

      Filesize

      5.6MB

    • memory/2472-7-0x0000000006C90000-0x0000000006C9E000-memory.dmp

      Filesize

      56KB

    • memory/2472-8-0x0000000006CF0000-0x0000000006DAE000-memory.dmp

      Filesize

      760KB

    • memory/2472-9-0x00000000094A0000-0x000000000953C000-memory.dmp

      Filesize

      624KB

    • memory/2472-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

      Filesize

      4KB

    • memory/2472-1-0x0000000000EE0000-0x0000000000FE0000-memory.dmp

      Filesize

      1024KB

    • memory/2472-29-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3468-62-0x0000000007970000-0x000000000797A000-memory.dmp

      Filesize

      40KB

    • memory/3468-48-0x0000000071450000-0x000000007149C000-memory.dmp

      Filesize

      304KB

    • memory/3468-71-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3468-68-0x0000000007C20000-0x0000000007C28000-memory.dmp

      Filesize

      32KB

    • memory/3468-67-0x0000000007C40000-0x0000000007C5A000-memory.dmp

      Filesize

      104KB

    • memory/3468-25-0x0000000005830000-0x0000000005896000-memory.dmp

      Filesize

      408KB

    • memory/3468-27-0x0000000005F80000-0x0000000005FE6000-memory.dmp

      Filesize

      408KB

    • memory/3468-66-0x0000000007B40000-0x0000000007B54000-memory.dmp

      Filesize

      80KB

    • memory/3468-22-0x0000000005610000-0x0000000005632000-memory.dmp

      Filesize

      136KB

    • memory/3468-28-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3468-16-0x00000000058A0000-0x0000000005EC8000-memory.dmp

      Filesize

      6.2MB

    • memory/3468-15-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3468-65-0x0000000007B30000-0x0000000007B3E000-memory.dmp

      Filesize

      56KB

    • memory/3468-64-0x0000000007B00000-0x0000000007B11000-memory.dmp

      Filesize

      68KB

    • memory/3468-63-0x0000000007B80000-0x0000000007C16000-memory.dmp

      Filesize

      600KB

    • memory/3468-14-0x0000000002CB0000-0x0000000002CE6000-memory.dmp

      Filesize

      216KB

    • memory/3468-42-0x0000000005FF0000-0x0000000006344000-memory.dmp

      Filesize

      3.3MB

    • memory/3468-61-0x0000000007900000-0x000000000791A000-memory.dmp

      Filesize

      104KB

    • memory/3468-45-0x00000000065D0000-0x00000000065EE000-memory.dmp

      Filesize

      120KB

    • memory/3468-46-0x0000000006620000-0x000000000666C000-memory.dmp

      Filesize

      304KB

    • memory/3468-47-0x0000000006BA0000-0x0000000006BD2000-memory.dmp

      Filesize

      200KB

    • memory/3468-18-0x00000000751A0000-0x0000000075950000-memory.dmp

      Filesize

      7.7MB

    • memory/3468-58-0x0000000007590000-0x00000000075AE000-memory.dmp

      Filesize

      120KB

    • memory/3468-59-0x00000000075C0000-0x0000000007663000-memory.dmp

      Filesize

      652KB

    • memory/3468-60-0x0000000007F40000-0x00000000085BA000-memory.dmp

      Filesize

      6.5MB

    • memory/5100-19-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-21-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-44-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-39-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-72-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-23-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-26-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-74-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-40-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-41-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-20-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-73-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-75-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-77-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-78-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-79-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/5100-80-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB