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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    12/12/2024, 05:10

General

  • Target

    0004532DESCRIPTION.exe

  • Size

    1.3MB

  • MD5

    99869676e00d4b9bbafba630976d433d

  • SHA1

    382b278b3e0ff8272cac88277e5db6b73ff0b808

  • SHA256

    c9c2cc6c696510e2de26e171d083b8f153f8d160eb00bc5cccc6f7f07623e183

  • SHA512

    e586c7fb045eaa8e1b2151e6bf2768c2033df3b4d2398d3f27bc601e1864ce438dc5e2c8649dc095ec9aa162a236a9fe1def098e8d7c6443cafcca7a075d58f4

  • SSDEEP

    24576:au6J33O0c+JY5UZ+XC0kGso6FaebHHfLOautp30hdL+1aWY:su0c++OCvkGs9FaebnjOauIdOY

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.64.152:2559

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-ZFXG9Y

  • 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
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0004532DESCRIPTION.exe
    "C:\Users\Admin\AppData\Local\Temp\0004532DESCRIPTION.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Users\Admin\AppData\Local\Allene\misruling.exe
      "C:\Users\Admin\AppData\Local\Temp\0004532DESCRIPTION.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2836
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\0004532DESCRIPTION.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2840
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\System32\svchost.exe
          4⤵
            PID:2676

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Allene\misruling.exe

      Filesize

      1.3MB

      MD5

      99869676e00d4b9bbafba630976d433d

      SHA1

      382b278b3e0ff8272cac88277e5db6b73ff0b808

      SHA256

      c9c2cc6c696510e2de26e171d083b8f153f8d160eb00bc5cccc6f7f07623e183

      SHA512

      e586c7fb045eaa8e1b2151e6bf2768c2033df3b4d2398d3f27bc601e1864ce438dc5e2c8649dc095ec9aa162a236a9fe1def098e8d7c6443cafcca7a075d58f4

    • memory/2676-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2676-28-0x00000000000D0000-0x00000000000D8000-memory.dmp

      Filesize

      32KB

    • memory/2676-32-0x00000000000D0000-0x00000000000D8000-memory.dmp

      Filesize

      32KB

    • memory/2676-31-0x00000000000D0000-0x00000000000D8000-memory.dmp

      Filesize

      32KB

    • memory/2828-6-0x0000000000BA0000-0x0000000000FA0000-memory.dmp

      Filesize

      4.0MB

    • memory/2836-20-0x0000000000CF0000-0x00000000010F0000-memory.dmp

      Filesize

      4.0MB

    • memory/2840-22-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2840-24-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2840-25-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2840-29-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB