Analysis

  • max time kernel
    171s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-01-2023 07:06

General

  • Target

    7034c12131cc2e28fcf9235850a36b08e9983dce.exe

  • Size

    7KB

  • MD5

    1c72fb093ace75fffb093c6541ff4940

  • SHA1

    7034c12131cc2e28fcf9235850a36b08e9983dce

  • SHA256

    f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785

  • SHA512

    4d713c85e2b5a818e3f5db4c7b59a820bb309c911825670b540597c9faa9d931f5648d054e19a01a48f7c97bae6dfe67b02148fb3ad58ddafdd11bb06f8a59ed

  • SSDEEP

    96:lTlsnKYgr+QLZCMqm18WQ2juY+wq+Df/8tEkajtR/zNt:lpQELZCMqmXjuZ+z8zaj7p

Malware Config

Extracted

Family

remcos

Botnet

28282

C2

194.180.49.17:28282

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

    gqhwjekrltlu-TOU33Q

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
    "C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3784
    • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
      C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
      2⤵
        PID:5084
      • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
        C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
        2⤵
          PID:4956
        • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          2⤵
            PID:1588
          • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
            C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
            2⤵
              PID:4200

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Persistence

          Registry Run Keys / Startup Folder

          1
          T1060

          Defense Evasion

          Modify Registry

          1
          T1112

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          2
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1588-146-0x0000000000000000-mapping.dmp
          • memory/2276-132-0x00000000008B0000-0x00000000008B8000-memory.dmp
            Filesize

            32KB

          • memory/2276-133-0x00000000069B0000-0x00000000069D2000-memory.dmp
            Filesize

            136KB

          • memory/2276-143-0x0000000007860000-0x0000000007E04000-memory.dmp
            Filesize

            5.6MB

          • memory/2276-142-0x0000000005C50000-0x0000000005CE2000-memory.dmp
            Filesize

            584KB

          • memory/3784-137-0x0000000005810000-0x0000000005876000-memory.dmp
            Filesize

            408KB

          • memory/3784-134-0x0000000000000000-mapping.dmp
          • memory/3784-139-0x0000000006640000-0x000000000665E000-memory.dmp
            Filesize

            120KB

          • memory/3784-140-0x0000000007F30000-0x00000000085AA000-memory.dmp
            Filesize

            6.5MB

          • memory/3784-141-0x0000000006BC0000-0x0000000006BDA000-memory.dmp
            Filesize

            104KB

          • memory/3784-136-0x0000000005A50000-0x0000000006078000-memory.dmp
            Filesize

            6.2MB

          • memory/3784-135-0x0000000002D10000-0x0000000002D46000-memory.dmp
            Filesize

            216KB

          • memory/3784-138-0x00000000059B0000-0x0000000005A16000-memory.dmp
            Filesize

            408KB

          • memory/4200-147-0x0000000000000000-mapping.dmp
          • memory/4200-148-0x0000000000400000-0x000000000047F000-memory.dmp
            Filesize

            508KB

          • memory/4200-149-0x0000000000400000-0x000000000047F000-memory.dmp
            Filesize

            508KB

          • memory/4200-150-0x0000000000400000-0x000000000047F000-memory.dmp
            Filesize

            508KB

          • memory/4200-151-0x0000000000400000-0x000000000047F000-memory.dmp
            Filesize

            508KB

          • memory/4200-152-0x0000000000400000-0x000000000047F000-memory.dmp
            Filesize

            508KB

          • memory/4956-145-0x0000000000000000-mapping.dmp
          • memory/5084-144-0x0000000000000000-mapping.dmp