Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2024 15:31

General

  • Target

    1ecebdf9dfc8fb0997c4d68fb810182fa3582fc592336e8be071be3ab61daccc.exe

  • Size

    469KB

  • MD5

    664feba7f5a208f12b2c5919dfc45d9b

  • SHA1

    9991fb15654dc55a82cc2a15ac2b072dffed26b9

  • SHA256

    1ecebdf9dfc8fb0997c4d68fb810182fa3582fc592336e8be071be3ab61daccc

  • SHA512

    7e9862b7b7fcb887cc230f72f8b19aa1a32fedb717d3e41e2a4945e2614109b98851c7096dc454d7c45cc7e8e2d932cd21103be0cc99c9aafcc5ff6487123c2c

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQShn9+:uiLJbpI7I2WhQqZ7h9+

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

204.10.194.175:4444

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    allahtools.exe

  • copy_folder

    Remcos

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-5TVP5I

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    phishontop

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1ecebdf9dfc8fb0997c4d68fb810182fa3582fc592336e8be071be3ab61daccc.exe
    "C:\Users\Admin\AppData\Local\Temp\1ecebdf9dfc8fb0997c4d68fb810182fa3582fc592336e8be071be3ab61daccc.exe"
    1⤵
    • Adds policy Run key to start application
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4956
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\Remcos\allahtools.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1676
        • C:\ProgramData\Remcos\allahtools.exe
          C:\ProgramData\Remcos\allahtools.exe
          4⤵
          • Adds policy Run key to start application
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:3020
          • \??\c:\program files (x86)\internet explorer\iexplore.exe
            "c:\program files (x86)\internet explorer\iexplore.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Remcos\allahtools.exe

    Filesize

    469KB

    MD5

    664feba7f5a208f12b2c5919dfc45d9b

    SHA1

    9991fb15654dc55a82cc2a15ac2b072dffed26b9

    SHA256

    1ecebdf9dfc8fb0997c4d68fb810182fa3582fc592336e8be071be3ab61daccc

    SHA512

    7e9862b7b7fcb887cc230f72f8b19aa1a32fedb717d3e41e2a4945e2614109b98851c7096dc454d7c45cc7e8e2d932cd21103be0cc99c9aafcc5ff6487123c2c

  • C:\Users\Admin\AppData\Local\Temp\install.vbs

    Filesize

    634B

    MD5

    62da83404add283cb5874a3f430154de

    SHA1

    51da13e0b29749a76121bf0457ad34d8cc3d6598

    SHA256

    51e5c6083775f2413873f6decb6657f19cdef9d83a2b4544650733f8e9515658

    SHA512

    24e0ad4d89216cfbd43bd036108175e71a47c8c3664f4688855912e440e08475cd9dff9f3ca3d19dc94aad49c3c708bda5021bd69a0e0090a581cd0fabe71333

  • memory/884-14-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-17-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-10-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-12-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-11-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-13-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-8-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-15-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-16-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-9-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-18-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-19-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-20-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-21-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-22-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-23-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB

  • memory/884-24-0x0000000000E10000-0x0000000000E8F000-memory.dmp

    Filesize

    508KB