Analysis

  • max time kernel
    149s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-09-2024 07:11

General

  • Target

    e8951f0b49eee256fdcb275a30d1a6c7_JaffaCakes118.exe

  • Size

    229KB

  • MD5

    e8951f0b49eee256fdcb275a30d1a6c7

  • SHA1

    ecd7f7876661260590cc8a25865956a4efac6190

  • SHA256

    2f7713ce0b410ed8219c81d07ad4040f0d3f1adc51e11deab38228465ee286de

  • SHA512

    748258cc90792b254be9c1a9313a23ec3383300a750e8c25492d848c302eb05dc90aa6ba40fdfcdf1541caea5c7f8d8d66dd71ccdfb94eb05a1c030f867cc1f0

  • SSDEEP

    3072:uWp+PekE+cqyB5vkEcMTm3LvuPso6ZJe/dLdkgXmKMl8+FPGVJXZsjEgYzFcFe:Xp+bp+EiPsoueLTXQ8dslY

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

pmanz.sytes.net:444

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_ffrcbsjpmc

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

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.

  • 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 4 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8951f0b49eee256fdcb275a30d1a6c7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e8951f0b49eee256fdcb275a30d1a6c7_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe" /logtoconsole=false /logfile= /u "C:\Users\Admin\AppData\Local\Temp\e8951f0b49eee256fdcb275a30d1a6c7_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1116
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HPtuxkLK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA0F3.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:848
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe
        "{path}"
        3⤵
          PID:3576
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe
          "{path}"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:4084

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpA0F3.tmp

      Filesize

      1KB

      MD5

      0cae68bc2a307b5c48489a08e4d76c07

      SHA1

      638210e788317e3c82a9dc7a12ada3a28af7a3eb

      SHA256

      e0d1cd957d66ba721463baa436ce0787f55e245081159033dc0a24570fbab35b

      SHA512

      ed3d88741b9e9182907b0d22828f43948b79e592e5b7f066aee8ffa630b177ac62e5fa3aa797270db5db40aa9a621da5650c28b5d40b8ca90557e08583c416c7

    • memory/1116-6-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/1116-21-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/1116-5-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/1116-8-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/1116-7-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/1116-23-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/1116-22-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/2188-4-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/2188-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

      Filesize

      4KB

    • memory/2188-1-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/2188-2-0x00000000748C0000-0x0000000074E71000-memory.dmp

      Filesize

      5.7MB

    • memory/4084-14-0x0000000000400000-0x0000000000417000-memory.dmp

      Filesize

      92KB

    • memory/4084-20-0x0000000000400000-0x0000000000417000-memory.dmp

      Filesize

      92KB

    • memory/4084-17-0x0000000000400000-0x0000000000417000-memory.dmp

      Filesize

      92KB

    • memory/4084-16-0x0000000000400000-0x0000000000417000-memory.dmp

      Filesize

      92KB

    • memory/4084-25-0x0000000000400000-0x0000000000417000-memory.dmp

      Filesize

      92KB