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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
    25/12/2024, 05:34

General

  • Target

    a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe

  • Size

    1.1MB

  • MD5

    86e5451f3367e6580295e46b33d3d8ea

  • SHA1

    b27ac49886349182a8f3cb9cdd7eaed0438ba3a3

  • SHA256

    a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49

  • SHA512

    1b0bfc3df08ef499b2c1d7d24f9e31a027c98592645512d73cd58b50f12d52fda4a1287a7a61e6e7ce63a418db393c3546586ea6bf043e8a9de873a2e0ac85eb

  • SSDEEP

    12288:P2yGdJI1QkIO0QRBajzGStJLkGwiAlVXAjxfkc14c1ZTii1/RwCmcJwAFxrXbqs8:PfOiavjzGStJLXwiyAjxfkcacLOxjA4

Score
10/10

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

10

C2

duckdne7832732.duckdns.org:1718

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-RN68N0

  • 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
  • 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 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.exe
    "C:\Users\Admin\AppData\Local\Temp\a1477a2f05552a89c24ca286f54cdded4b87694302d3d8af2f5cf9dbd7d3ae49.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:3220
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VuYmmGpWGSWON" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF01D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2628
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF01D.tmp

    Filesize

    1KB

    MD5

    8e33e249acee6c18ede27f12fef11acf

    SHA1

    87729d90cc6393ae34ad8a058ab5774e42620b54

    SHA256

    33d86bde8ea7996a2c9247ac3b956e9aa7f3ff648edaed2de1f1707b3b2940b6

    SHA512

    f72f94aafec569c2899511d22a6c8381c72fb1648c58dd7d9e4161b802a8478611e53ee079a42e73cfd8ac3f478cc96a3fbfa7edd43c08a19e8dddaef1cc5299

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

    Filesize

    74B

    MD5

    2b12c64f1113ef3ec22f94ab7b370530

    SHA1

    25f382025c2595a2a61d65663a1e85aed02c20a0

    SHA256

    10ef24982bb96435ff9caee4d975c3e92348fc1927bdd4115bafa1d948bb98e7

    SHA512

    209c59c484ee727441808a2dcba25ac1607394f4a8902627b258d0f5c48b70da51a37f69c31293cba369f91f47c2589075d1ce70000a95b70c0bd87101d92edf

  • memory/2932-27-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2932-20-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2932-23-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2932-24-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2932-19-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/2932-16-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/3220-5-0x0000000004C30000-0x0000000004C3A000-memory.dmp

    Filesize

    40KB

  • memory/3220-6-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3220-10-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3220-11-0x0000000006500000-0x0000000006572000-memory.dmp

    Filesize

    456KB

  • memory/3220-12-0x0000000008B00000-0x0000000008B26000-memory.dmp

    Filesize

    152KB

  • memory/3220-8-0x0000000005020000-0x000000000502A000-memory.dmp

    Filesize

    40KB

  • memory/3220-7-0x0000000004EA0000-0x0000000004EF6000-memory.dmp

    Filesize

    344KB

  • memory/3220-9-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/3220-0-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/3220-4-0x0000000004C60000-0x0000000004CF2000-memory.dmp

    Filesize

    584KB

  • memory/3220-3-0x0000000005170000-0x0000000005714000-memory.dmp

    Filesize

    5.6MB

  • memory/3220-25-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3220-2-0x0000000004B20000-0x0000000004BBC000-memory.dmp

    Filesize

    624KB

  • memory/3220-1-0x0000000000080000-0x0000000000192000-memory.dmp

    Filesize

    1.1MB