Analysis

  • max time kernel
    175s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 09:30

General

  • Target

    ACHUBABALO.exe

  • Size

    2.3MB

  • MD5

    e70b644872ce35311bb5195272075c04

  • SHA1

    dbd7db712fd3eb5f018cbe5bc6d5899f0c0e7024

  • SHA256

    77832184096060c1e05b236138b162b009218c3ba698573c32939fe1456a3c1d

  • SHA512

    0cef88c2a00522e5a56fec62e5096740ffdd864ce1c476ab51b9948633bd456b59f0f8824245e5bc71b75b24e483be3e0f3a4e889f2eb3fa79b394f122d8574c

  • SSDEEP

    49152:qI0qyQ4xwGa38JIhZrOrJ/DpKzPW5NJV050+aZTzJRAle:YVMI/DaP09FTlae

Malware Config

Extracted

Family

remcos

Botnet

mimi

C2

185.206.225.51:18853

127.0.0.1:18853

10.16.225.165:18853

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-UVAOQ7

  • 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\ACHUBABALO.exe
    "C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.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:1880
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1220
    • C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.exe
      C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.exe
      2⤵
        PID:3096
      • C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.exe
        C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.exe
        2⤵
          PID:1804
        • C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.exe
          C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.exe
          2⤵
            PID:3516
          • C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.exe
            C:\Users\Admin\AppData\Local\Temp\ACHUBABALO.exe
            2⤵
              PID:2500

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1220-142-0x00000000077F0000-0x0000000007E6A000-memory.dmp

            Filesize

            6.5MB

          • memory/1220-139-0x0000000005700000-0x0000000005766000-memory.dmp

            Filesize

            408KB

          • memory/1220-140-0x00000000058E0000-0x0000000005946000-memory.dmp

            Filesize

            408KB

          • memory/1220-141-0x0000000005F00000-0x0000000005F1E000-memory.dmp

            Filesize

            120KB

          • memory/1220-136-0x0000000000000000-mapping.dmp

          • memory/1220-137-0x00000000049F0000-0x0000000004A26000-memory.dmp

            Filesize

            216KB

          • memory/1220-138-0x0000000005060000-0x0000000005688000-memory.dmp

            Filesize

            6.2MB

          • memory/1220-143-0x0000000006490000-0x00000000064AA000-memory.dmp

            Filesize

            104KB

          • memory/1804-145-0x0000000000000000-mapping.dmp

          • memory/1880-132-0x0000000000B90000-0x0000000000DEE000-memory.dmp

            Filesize

            2.4MB

          • memory/1880-133-0x0000000005A10000-0x0000000005AA2000-memory.dmp

            Filesize

            584KB

          • memory/1880-135-0x0000000005D40000-0x0000000005D62000-memory.dmp

            Filesize

            136KB

          • memory/1880-134-0x0000000006260000-0x0000000006804000-memory.dmp

            Filesize

            5.6MB

          • memory/2500-149-0x0000000000400000-0x000000000047B000-memory.dmp

            Filesize

            492KB

          • memory/2500-151-0x0000000000400000-0x000000000047B000-memory.dmp

            Filesize

            492KB

          • memory/2500-147-0x0000000000000000-mapping.dmp

          • memory/2500-148-0x0000000000400000-0x000000000047B000-memory.dmp

            Filesize

            492KB

          • memory/2500-150-0x0000000000400000-0x000000000047B000-memory.dmp

            Filesize

            492KB

          • memory/3096-144-0x0000000000000000-mapping.dmp

          • memory/3516-146-0x0000000000000000-mapping.dmp