Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/12/2024, 03:13

General

  • Target

    d4fa2d3197da723c8030147297b9e904_JaffaCakes118.exe

  • Size

    868KB

  • MD5

    d4fa2d3197da723c8030147297b9e904

  • SHA1

    1623b9fac1f027f328a4a567fec7f9517e8a9b5b

  • SHA256

    943df694d18c31eba3477271af8be3ba54e003afd623d162705bf203ef0ab6ee

  • SHA512

    24649db62837626affd681f7b20fce823dacd45d6207ffb7e100d61c65385bc69eb0fd412715129e1237160a849fb8ec566ce7b760174334e85715fa10ea0911

  • SSDEEP

    12288:d5aTUxjQBT/48bXaGJdB38Krf7zpurlZFcHTn3mOJurGrel9VroDij:d53x0BTZbBVfXpQHETn3mO4ueJHj

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

Reed

C2

ezfax2021.home-webserver.de:24133

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    iuis.exe

  • copy_folder

    oiujhy

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    uhyg.dat

  • keylog_flag

    false

  • keylog_folder

    juhg

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    iuyhg-XOY14N

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    oiu

  • 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.

  • Remcos family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • 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 3 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4fa2d3197da723c8030147297b9e904_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d4fa2d3197da723c8030147297b9e904_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\smmtJKPRG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE63.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4792
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\juhg\uhyg.dat

    Filesize

    148B

    MD5

    a1a68b502cbf314e65767c609ee5d92a

    SHA1

    6c55348e9db5c2bafb76b2ec1d65862e24cbc875

    SHA256

    5b3b2ce8f48768f88a37b5617601fb1258b13a8a8f83041e651fab1990ee571c

    SHA512

    881a406f8c25ae4e12b0bc82b19483c975f90aaa74a56c8d805e4230bcbda6272d1464db36b70d2a067a603fcc1ce39a368d2907de48fdf061dc54b40abb2332

  • memory/4536-17-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4536-30-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4536-19-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4536-20-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4536-23-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4536-24-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4536-18-0x0000000000400000-0x0000000000479000-memory.dmp

    Filesize

    484KB

  • memory/4724-5-0x0000000004D00000-0x0000000004D0A000-memory.dmp

    Filesize

    40KB

  • memory/4724-9-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-10-0x0000000006870000-0x000000000691E000-memory.dmp

    Filesize

    696KB

  • memory/4724-11-0x0000000006920000-0x000000000699A000-memory.dmp

    Filesize

    488KB

  • memory/4724-8-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

    Filesize

    4KB

  • memory/4724-7-0x0000000005260000-0x000000000526C000-memory.dmp

    Filesize

    48KB

  • memory/4724-6-0x0000000006230000-0x00000000062CC000-memory.dmp

    Filesize

    624KB

  • memory/4724-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

    Filesize

    4KB

  • memory/4724-4-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-3-0x0000000004D60000-0x0000000004DF2000-memory.dmp

    Filesize

    584KB

  • memory/4724-26-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-2-0x0000000005270000-0x0000000005814000-memory.dmp

    Filesize

    5.6MB

  • memory/4724-1-0x0000000000270000-0x000000000034E000-memory.dmp

    Filesize

    888KB