Analysis

  • max time kernel
    171s
  • max time network
    164s
  • 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 07:32

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 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 4 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 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 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 48 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:4244
    • 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:1612
    • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
      C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
      2⤵
        PID:4952
      • 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:5100
        • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\wtvpdmgurzjrjrwhnbo"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4540
        • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\ynbhexrwfibwtxslwmbjlk"
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:3640
        • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\jpoaepbqtqtjwlgxnxwkwpkdkk"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1768
        • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
          C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\lpfxwknsstsdhtftisibnhscods"
          3⤵
            PID:3500
          • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
            C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\lpfxwknsstsdhtftisibnhscods"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3988
          • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
            C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\nrtqxcxtgbkirztfzcdvymftxkjstxw"
            3⤵
            • Accesses Microsoft Outlook accounts
            PID:3964
          • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
            C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\ylyjxvincjcnunqjinqwbzzcgqtbminbtx"
            3⤵
              PID:1532
            • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
              C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\ylyjxvincjcnunqjinqwbzzcgqtbminbtx"
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:892

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Defense Evasion

        Modify Registry

        1
        T1112

        Credential Access

        Credentials in Files

        1
        T1081

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Collection

        Data from Local System

        1
        T1005

        Email Collection

        1
        T1114

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\lpfxwknsstsdhtftisibnhscods
          Filesize

          4KB

          MD5

          8937ec50df53642622ba77b9b2dfe88f

          SHA1

          76e19a0efe5cf6eac0a3bbb81f4a3f12d46d095d

          SHA256

          e35d3c41759c879026d522ee9c6d5e8afb7ec045856d456d50170306c321f363

          SHA512

          6aedc7c3c8b5b883f0f944fc8da54d4c0ae85afc8278765c229f4efa28776cba4b37c80bfa7035f358a251c5ef816c0bde805ce70e18052ee291f5d27e07153c

        • memory/892-164-0x0000000000400000-0x0000000000424000-memory.dmp
          Filesize

          144KB

        • memory/892-162-0x0000000000000000-mapping.dmp
        • memory/1532-161-0x0000000000000000-mapping.dmp
        • memory/1612-136-0x0000000004C90000-0x00000000052B8000-memory.dmp
          Filesize

          6.2MB

        • memory/1612-135-0x0000000004530000-0x0000000004566000-memory.dmp
          Filesize

          216KB

        • memory/1612-138-0x0000000005490000-0x00000000054F6000-memory.dmp
          Filesize

          408KB

        • memory/1612-139-0x0000000005AC0000-0x0000000005ADE000-memory.dmp
          Filesize

          120KB

        • memory/1612-140-0x00000000072F0000-0x000000000796A000-memory.dmp
          Filesize

          6.5MB

        • memory/1612-141-0x0000000005FC0000-0x0000000005FDA000-memory.dmp
          Filesize

          104KB

        • memory/1612-134-0x0000000000000000-mapping.dmp
        • memory/1612-137-0x00000000053B0000-0x0000000005416000-memory.dmp
          Filesize

          408KB

        • memory/1768-156-0x0000000000400000-0x0000000000424000-memory.dmp
          Filesize

          144KB

        • memory/1768-155-0x0000000000400000-0x0000000000424000-memory.dmp
          Filesize

          144KB

        • memory/1768-152-0x0000000000000000-mapping.dmp
        • memory/3500-158-0x0000000000000000-mapping.dmp
        • memory/3640-151-0x0000000000000000-mapping.dmp
        • memory/3640-157-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/3640-153-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/3964-163-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/3964-160-0x0000000000000000-mapping.dmp
        • memory/3988-159-0x0000000000000000-mapping.dmp
        • memory/3988-167-0x0000000000400000-0x0000000000478000-memory.dmp
          Filesize

          480KB

        • memory/3988-166-0x0000000000400000-0x0000000000478000-memory.dmp
          Filesize

          480KB

        • memory/4244-132-0x0000000000DD0000-0x0000000000DD8000-memory.dmp
          Filesize

          32KB

        • memory/4244-143-0x0000000007D80000-0x0000000008324000-memory.dmp
          Filesize

          5.6MB

        • memory/4244-133-0x0000000006ED0000-0x0000000006EF2000-memory.dmp
          Filesize

          136KB

        • memory/4244-142-0x0000000006550000-0x00000000065E2000-memory.dmp
          Filesize

          584KB

        • memory/4540-168-0x0000000000400000-0x0000000000478000-memory.dmp
          Filesize

          480KB

        • memory/4540-154-0x0000000000400000-0x0000000000478000-memory.dmp
          Filesize

          480KB

        • memory/4540-150-0x0000000000000000-mapping.dmp
        • memory/4952-144-0x0000000000000000-mapping.dmp
        • memory/5100-146-0x0000000000400000-0x000000000047F000-memory.dmp
          Filesize

          508KB

        • memory/5100-165-0x0000000000400000-0x000000000047F000-memory.dmp
          Filesize

          508KB

        • memory/5100-148-0x0000000000400000-0x000000000047F000-memory.dmp
          Filesize

          508KB

        • memory/5100-149-0x0000000000400000-0x000000000047F000-memory.dmp
          Filesize

          508KB

        • memory/5100-147-0x0000000000400000-0x000000000047F000-memory.dmp
          Filesize

          508KB

        • memory/5100-145-0x0000000000000000-mapping.dmp
        • memory/5100-170-0x0000000010000000-0x0000000010019000-memory.dmp
          Filesize

          100KB

        • memory/5100-173-0x0000000010000000-0x0000000010019000-memory.dmp
          Filesize

          100KB

        • memory/5100-174-0x0000000010000000-0x0000000010019000-memory.dmp
          Filesize

          100KB

        • memory/5100-175-0x0000000010000000-0x0000000010019000-memory.dmp
          Filesize

          100KB