Analysis

  • max time kernel
    149s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    10-01-2025 07:29

General

  • Target

    JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe

  • Size

    813KB

  • MD5

    de75da301868e54dbb3ee3a4f2c1638b

  • SHA1

    7144ffd9b0c80b2423725df7e2f9ead46758946b

  • SHA256

    7c78642228af2539c544ef2497ca977cd311b49a0f00ea70fc382732a8ebb929

  • SHA512

    d4cb2952a8f2ef00a34af729c89d2293412c4ba780f25f38cad1d4c42be5146415f2e17e8e79566da46ad2600b5cb7fb0fc68f3debf4c4d7e200ea02760ab44b

  • SSDEEP

    24576:Om3vlBMpSYDRuX7unJXvrMYvsOmwYTH3C:Oqw/R/9TMYvhYu

Malware Config

Extracted

Family

remcos

Version

3.1.0 Pro

Botnet

RemoteHost

C2

theshooter09.duckdns.org:3839

shooter99.duckdns.org:2404

theshooter09.duckdns.org:37729

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

    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-D4NSTX

  • 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

    wikipedia;solitaire;

Signatures

  • Remcos

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

  • Remcos family
  • 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 2 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YuGbAv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp30A2.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2944
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\remcos\logs.dat

    Filesize

    74B

    MD5

    5e80498d4d7cb6725c47d91645d29436

    SHA1

    aea016b04f2539efaac24f3ea861dada181d522a

    SHA256

    55e2677309a0029ee884cf2d319b2fb5a55f6e012e3ef2624978cd1f1ea174de

    SHA512

    66d490b6ef8555f0e0110d9374f59f08a0c6f38b081cc07db8d7cec758fe038e67373448e5acf36335f35f6f924321f89cd6d76a382c341d5320bc93ddd4d1de

  • memory/1944-30-0x0000000073ED0000-0x00000000745BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1944-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

    Filesize

    4KB

  • memory/1944-1-0x00000000011F0000-0x00000000012C2000-memory.dmp

    Filesize

    840KB

  • memory/1944-4-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

    Filesize

    4KB

  • memory/1944-5-0x0000000073ED0000-0x00000000745BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1944-6-0x0000000006100000-0x000000000619C000-memory.dmp

    Filesize

    624KB

  • memory/1944-2-0x0000000073ED0000-0x00000000745BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1944-3-0x00000000005D0000-0x00000000005DE000-memory.dmp

    Filesize

    56KB

  • memory/2156-12-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-13-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-23-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-26-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-25-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2156-19-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-18-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-17-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-16-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-15-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-14-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2156-29-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB