Analysis

  • max time kernel
    168s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2023, 07:26

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.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 36 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:4708
    • 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:3256
    • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
      C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
      2⤵
        PID:2124
      • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
        C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:812
        • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\bidvuqpainqhfenhuhhad"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4424
        • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\ecinniauevimhsbldstcobxm"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:3908
        • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\oeogotkwsdarsyxpucgvrgrdoirp"
          3⤵
            PID:4788
          • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
            C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\oeogotkwsdarsyxpucgvrgrdoirp"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2192
          • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
            C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\oeogotkwsdarsyxpucgvrgrdoirp"
            3⤵
              PID:4924

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\bidvuqpainqhfenhuhhad

          Filesize

          4KB

          MD5

          07c14121728256ad56b1ef039a28e4a6

          SHA1

          0f39e1e02cd5e2b1b22d9e5470757ae13fe96738

          SHA256

          8d46702077d776b04085cbe5ce2f0e5971595ea4e11b025a215c4379e7fc18f8

          SHA512

          03d9113095e7b6143c4f99b131462fa451a9c2d7e841461603dace64bd6d525cb63d074384d2b3ff285a7183116f1715138beeb756fced9a6b1ad6fde36d4789

        • memory/812-166-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/812-165-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/812-164-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/812-161-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/812-150-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/812-149-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/812-148-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/812-147-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/812-146-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2192-156-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/3256-138-0x0000000006020000-0x0000000006086000-memory.dmp

          Filesize

          408KB

        • memory/3256-139-0x00000000066A0000-0x00000000066BE000-memory.dmp

          Filesize

          120KB

        • memory/3256-140-0x0000000007CD0000-0x000000000834A000-memory.dmp

          Filesize

          6.5MB

        • memory/3256-135-0x00000000050E0000-0x0000000005116000-memory.dmp

          Filesize

          216KB

        • memory/3256-136-0x00000000058E0000-0x0000000005F08000-memory.dmp

          Filesize

          6.2MB

        • memory/3256-137-0x0000000005FB0000-0x0000000006016000-memory.dmp

          Filesize

          408KB

        • memory/3256-141-0x0000000006B80000-0x0000000006B9A000-memory.dmp

          Filesize

          104KB

        • memory/3908-157-0x0000000000400000-0x0000000000457000-memory.dmp

          Filesize

          348KB

        • memory/4424-159-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/4424-158-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/4708-132-0x0000000000A50000-0x0000000000A58000-memory.dmp

          Filesize

          32KB

        • memory/4708-143-0x0000000007A10000-0x0000000007FB4000-memory.dmp

          Filesize

          5.6MB

        • memory/4708-142-0x0000000005E00000-0x0000000005E92000-memory.dmp

          Filesize

          584KB

        • memory/4708-133-0x0000000006C10000-0x0000000006C32000-memory.dmp

          Filesize

          136KB