Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 01:24

General

  • Target

    8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe

  • Size

    986KB

  • MD5

    d5da623ad42a511796d291c516a5dbb6

  • SHA1

    029ef97714317521a472f7a8770295421a585e45

  • SHA256

    8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91

  • SHA512

    eb64880cbe757026605f76d737f00ed73fb28b0580cab7a1f225295252fa3f366875e999e2493c4a7050769aa8989660ec140dc39231974f011e91001eb50acd

  • SSDEEP

    24576:xGQ3AgIk9qzYhJVbysG2iPQE2cjYkT0CdA0uYvr0TzP1R:gQQJk9xVboRPQLcfTZZRvwTzPn

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

mandope483.duckdns.org:59033

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

    Rmc-JPRNP1

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • Detected Nirsoft tools 2 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • 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.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
    "C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3644
    • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
      "C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe"
      2⤵
        PID:1808
      • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
        "C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1728
        • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
          C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\zlkhnfbzufkdgrqcsew"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:5100
        • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
          C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\jnpaoxmtincirxmgjpjvql"
          3⤵
            PID:4732
          • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
            C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\jnpaoxmtincirxmgjpjvql"
            3⤵
            • Suspicious use of UnmapMainImage
            PID:3856
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3856 -s 12
              4⤵
              • Program crash
              PID:1220
          • C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe
            C:\Users\Admin\AppData\Local\Temp\8df645995df261a5bc7c19d2ba16127256054497e498faaba582dffe10e01f91.exe /stext "C:\Users\Admin\AppData\Local\Temp\mhvshpwuevumteassaeobqbvv"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2700
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3856 -ip 3856
        1⤵
          PID:4608

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          4cb1b2d5526232e8fc1252b7b6801341

          SHA1

          9aa2433b4e66ee762c5305150a21768de3894510

          SHA256

          f655f6f51f5cb10bace0df504d766f4ac3ebff02e9aecb22cf871d7415bf3817

          SHA512

          79e825959c9700a7abf3a510ba71ac3463cfbdf0d0c2984288ae697a01afc9063412cc519987b124553b881e3fec5c3a2910761f208e2d46562f1838a8ea84bd

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rh2by4c1.acf.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

          Filesize

          4KB

          MD5

          f1d2c01ce674ad7d5bad04197c371fbc

          SHA1

          4bf0ed04d156a3dc6c8d27e134ecbda76d3585aa

          SHA256

          25b006032deccd628940ef728fffe83b325a85de453a34691f55f570e4460094

          SHA512

          81cb982cc33dcc27600a8a681c3ec3cc5b9221b95baa45e1ab24479745a9638b9f31d7beeeb1128b3294ff69b44e958c75e25d565f66790c364665caff96ee77

        • memory/780-6-0x00000000053D0000-0x000000000546C000-memory.dmp

          Filesize

          624KB

        • memory/780-5-0x00000000052E0000-0x00000000052EA000-memory.dmp

          Filesize

          40KB

        • memory/780-4-0x00000000753B0000-0x0000000075B60000-memory.dmp

          Filesize

          7.7MB

        • memory/780-20-0x00000000753B0000-0x0000000075B60000-memory.dmp

          Filesize

          7.7MB

        • memory/780-7-0x00000000753BE000-0x00000000753BF000-memory.dmp

          Filesize

          4KB

        • memory/780-8-0x00000000055D0000-0x00000000055E2000-memory.dmp

          Filesize

          72KB

        • memory/780-9-0x00000000753B0000-0x0000000075B60000-memory.dmp

          Filesize

          7.7MB

        • memory/780-10-0x0000000006C40000-0x0000000006D04000-memory.dmp

          Filesize

          784KB

        • memory/780-3-0x0000000005120000-0x00000000051B2000-memory.dmp

          Filesize

          584KB

        • memory/780-0-0x00000000753BE000-0x00000000753BF000-memory.dmp

          Filesize

          4KB

        • memory/780-2-0x0000000005620000-0x0000000005BC4000-memory.dmp

          Filesize

          5.6MB

        • memory/780-1-0x0000000000640000-0x000000000073C000-memory.dmp

          Filesize

          1008KB

        • memory/1728-25-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-93-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/1728-117-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-110-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-15-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-11-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-109-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-101-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-102-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-16-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-19-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-13-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-94-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-118-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-92-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/1728-89-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/1728-42-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-43-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-44-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-45-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-47-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-12-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-88-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-86-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/1728-87-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/2700-69-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2700-67-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2700-68-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/3644-49-0x0000000071BE0000-0x0000000071C2C000-memory.dmp

          Filesize

          304KB

        • memory/3644-60-0x0000000007920000-0x00000000079C3000-memory.dmp

          Filesize

          652KB

        • memory/3644-62-0x0000000007C50000-0x0000000007C6A000-memory.dmp

          Filesize

          104KB

        • memory/3644-73-0x0000000007CC0000-0x0000000007CCA000-memory.dmp

          Filesize

          40KB

        • memory/3644-21-0x00000000753BE000-0x00000000753BF000-memory.dmp

          Filesize

          4KB

        • memory/3644-22-0x0000000003010000-0x0000000003046000-memory.dmp

          Filesize

          216KB

        • memory/3644-23-0x0000000005AD0000-0x00000000060F8000-memory.dmp

          Filesize

          6.2MB

        • memory/3644-74-0x0000000007ED0000-0x0000000007F66000-memory.dmp

          Filesize

          600KB

        • memory/3644-75-0x0000000007E50000-0x0000000007E61000-memory.dmp

          Filesize

          68KB

        • memory/3644-78-0x0000000007E80000-0x0000000007E8E000-memory.dmp

          Filesize

          56KB

        • memory/3644-79-0x0000000007E90000-0x0000000007EA4000-memory.dmp

          Filesize

          80KB

        • memory/3644-80-0x0000000007F90000-0x0000000007FAA000-memory.dmp

          Filesize

          104KB

        • memory/3644-61-0x00000000082A0000-0x000000000891A000-memory.dmp

          Filesize

          6.5MB

        • memory/3644-82-0x0000000007F70000-0x0000000007F78000-memory.dmp

          Filesize

          32KB

        • memory/3644-85-0x00000000753B0000-0x0000000075B60000-memory.dmp

          Filesize

          7.7MB

        • memory/3644-27-0x00000000059E0000-0x0000000005A46000-memory.dmp

          Filesize

          408KB

        • memory/3644-59-0x0000000006F10000-0x0000000006F2E000-memory.dmp

          Filesize

          120KB

        • memory/3644-48-0x00000000078D0000-0x0000000007902000-memory.dmp

          Filesize

          200KB

        • memory/3644-41-0x0000000006E30000-0x0000000006E7C000-memory.dmp

          Filesize

          304KB

        • memory/3644-40-0x0000000006910000-0x000000000692E000-memory.dmp

          Filesize

          120KB

        • memory/3644-39-0x0000000006300000-0x0000000006654000-memory.dmp

          Filesize

          3.3MB

        • memory/3644-38-0x00000000753B0000-0x0000000075B60000-memory.dmp

          Filesize

          7.7MB

        • memory/3644-24-0x0000000005860000-0x0000000005882000-memory.dmp

          Filesize

          136KB

        • memory/3644-26-0x0000000005900000-0x0000000005966000-memory.dmp

          Filesize

          408KB

        • memory/3644-28-0x00000000753B0000-0x0000000075B60000-memory.dmp

          Filesize

          7.7MB

        • memory/3856-65-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/5100-63-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/5100-64-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/5100-66-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB