Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    19-06-2022 17:28

General

  • Target

    0e5c23d14dc6448fff9ee7fe356cee81.exe

  • Size

    985KB

  • MD5

    0e5c23d14dc6448fff9ee7fe356cee81

  • SHA1

    fae0a0acbf6e174b22d3fe0ff6cfe332a462b33b

  • SHA256

    a1098873c94184cf24edd24c3883f4be52224575da34f0469ad4a525c852ef28

  • SHA512

    6363c36750aa00e9f521d402f10f37745bd0f8a4ab2cfddbf342bce7743b8a853016e2afc58982f719d316d73fe255841276966a508eb3ccb7ce83733ff12b03

Malware Config

Extracted

Family

remcos

Botnet

06192022

C2

nikahuve.ac.ug:6968

kalskala.ac.ug:6968

tuekisaa.ac.ug:6968

parthaha.ac.ug:6968

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

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    scxs.dat

  • keylog_flag

    false

  • keylog_folder

    forbas

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    cvxyttydfsgbghfgfhtd-RXTSAM

  • 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

  • take_screenshot_title

    notepad;solitaire;

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0e5c23d14dc6448fff9ee7fe356cee81.exe
    "C:\Users\Admin\AppData\Local\Temp\0e5c23d14dc6448fff9ee7fe356cee81.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:1644
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwADsAIABTAGUAdAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAJwBDADoAXAAnAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1788
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:1348
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        2⤵
          PID:1588
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          2⤵
            PID:1180
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
            2⤵
            • Suspicious use of SetWindowsHookEx
            PID:1832

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1644-54-0x00000000008B0000-0x00000000009AC000-memory.dmp
          Filesize

          1008KB

        • memory/1644-55-0x0000000004A20000-0x0000000004B18000-memory.dmp
          Filesize

          992KB

        • memory/1644-56-0x0000000004990000-0x00000000049DC000-memory.dmp
          Filesize

          304KB

        • memory/1788-57-0x0000000000000000-mapping.dmp
        • memory/1788-58-0x00000000769D1000-0x00000000769D3000-memory.dmp
          Filesize

          8KB

        • memory/1788-59-0x0000000070540000-0x0000000070AEB000-memory.dmp
          Filesize

          5.7MB

        • memory/1788-60-0x0000000070540000-0x0000000070AEB000-memory.dmp
          Filesize

          5.7MB

        • memory/1832-61-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-62-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-64-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-66-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-67-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-68-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-69-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-71-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-73-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-74-0x000000000043133D-mapping.dmp
        • memory/1832-77-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-78-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB

        • memory/1832-79-0x0000000000400000-0x000000000047B000-memory.dmp
          Filesize

          492KB