Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2024 01:48

General

  • Target

    589b172cac7eb931e013d04820f31d1e7f6b7d710d1155dbb64ebb6c2fa2826a.exe

  • Size

    1.7MB

  • MD5

    658e8867a46096faafb9939ba1faeb1a

  • SHA1

    bfe077b029a1a6d4beeda154fa706f4ff0cfff82

  • SHA256

    589b172cac7eb931e013d04820f31d1e7f6b7d710d1155dbb64ebb6c2fa2826a

  • SHA512

    ead89fa50f5c499e04fccf187257ca634d6168de6a662fa139282e871447a361ca33fd94a96b152a9324af2bc532c9fa2045af945dd0a86a11909aeac770689b

  • SSDEEP

    24576:WR3njD6TaOQ5KJh7WXePuq5LktSbm5ktGn:qjD65Q5Kz7WXJq5Lkt6m/n

Malware Config

Extracted

Family

remcos

Botnet

Dollar Man

C2

178.23.190.118:52499

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

    Rmc-SJ9MVF

  • 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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Detected Nirsoft tools 6 IoCs

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

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\589b172cac7eb931e013d04820f31d1e7f6b7d710d1155dbb64ebb6c2fa2826a.exe
    "C:\Users\Admin\AppData\Local\Temp\589b172cac7eb931e013d04820f31d1e7f6b7d710d1155dbb64ebb6c2fa2826a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:392
    • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
      "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4580
      • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
        "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\abclophiy"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2256
      • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
        "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\kdpepiakuvqv"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:1832
      • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
        "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\vyuwqaleidiaofjl"
        3⤵
          PID:4752
        • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
          "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\vyuwqaleidiaofjl"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:752
      • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
        "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
        2⤵
          PID:2628

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\remcos\logs.dat

        Filesize

        144B

        MD5

        4a9475f37cc21f726656822c99f348c6

        SHA1

        0356ce7c38dd238f2cc5c9fa85519487ee9fc45b

        SHA256

        971cce63daedc52546dc59e906125f3016f7c5dd6f4fedc3930d3f215a3ff85b

        SHA512

        e5b82cc35f34c00650efda68bb544f592e52666a7bc81dd8ace512ce8a611c2fc1f7cadea3f88a9360cc0da8e8372244f52ecd70b11d676f08bd6c126fdfc06a

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

        Filesize

        4KB

        MD5

        71e3611290752b1a114e303d84e3987f

        SHA1

        210794023f369235615743c802fce5055961ee6e

        SHA256

        5163d0e849d5d39f1e8beb9d13beea8240d532dff6f28433522148628007af06

        SHA512

        d0235dd58f9038009e44c4847535f2bb652f093418fdfd890c01b4b9d8981df3a31e4a89f9099c226becbfe8541015d60f6b852165241d08cb8795d93dd2eb09

      • memory/392-0-0x00007FFD14463000-0x00007FFD14465000-memory.dmp

        Filesize

        8KB

      • memory/392-1-0x0000018CF1400000-0x0000018CF1428000-memory.dmp

        Filesize

        160KB

      • memory/392-2-0x00007FFD14460000-0x00007FFD14F21000-memory.dmp

        Filesize

        10.8MB

      • memory/392-3-0x0000018CF39C0000-0x0000018CF3A92000-memory.dmp

        Filesize

        840KB

      • memory/392-4-0x0000018CF3A90000-0x0000018CF3B62000-memory.dmp

        Filesize

        840KB

      • memory/392-18-0x00007FFD14460000-0x00007FFD14F21000-memory.dmp

        Filesize

        10.8MB

      • memory/752-29-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/752-30-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/752-28-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/1832-31-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1832-38-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1832-33-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1832-23-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1832-27-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/2256-32-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2256-34-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2256-26-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2256-40-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2256-22-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4580-15-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-45-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4580-17-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-16-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-14-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-13-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-12-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-8-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-9-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-7-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-6-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-42-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4580-46-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/4580-20-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-47-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-50-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-51-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-53-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-5-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-60-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-59-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-67-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-68-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-75-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-76-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-84-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/4580-83-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB