Overview

overview

10

Static

static

3

efc115065e...18.exe

windows7-x64

10

efc115065e...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    efc115065e049d9ff628735235a40078_JaffaCakes118

  • Size

    200KB

  • Sample

    240921-n9bt2s1dne

  • MD5

    efc115065e049d9ff628735235a40078

  • SHA1

    ea06d184a299493badc4233af4c0fbb5beb10b57

  • SHA256

    64d8c1f3cea735fc62a1c424325acc350ebd878fdf369220c579e6079d0d0a94

  • SHA512

    e71cf176018e774fc96982145aaea3d86294f57036a9b03f5ac5973eee177454c3cd588ae04bc24aae0a191af11ab28437643c351a7a9676c264be0d3e64351f

  • SSDEEP

    3072:v70pdzwruktfpOdq8qamIoUBPDAGFufDhb/BNASUXvQ:vIwruklpsqgfBPDfwHrUXv

Score
10/10
remcosmswinendiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

mswinen

C2

191.96.249.27:2404

191.96.249.44:2404
Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    mswinen.exe

  • copy_folder

    mswiner

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%\System32

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    wininitator

  • keylog_path

    %WinDir%\System32

  • mouse_option

    false

  • mutex

    remcos_irujnkxsbqmbujv

  • screenshot_crypt

    true

  • screenshot_flag

    false

  • screenshot_folder

    winss

  • screenshot_path

    %WinDir%\System32

  • screenshot_time

    1

  • startup_value

    mswinen

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    ing;citibank;

Targets

    • Target

      efc115065e049d9ff628735235a40078_JaffaCakes118

    • Size

      200KB

    • MD5

      efc115065e049d9ff628735235a40078

    • SHA1

      ea06d184a299493badc4233af4c0fbb5beb10b57

    • SHA256

      64d8c1f3cea735fc62a1c424325acc350ebd878fdf369220c579e6079d0d0a94

    • SHA512

      e71cf176018e774fc96982145aaea3d86294f57036a9b03f5ac5973eee177454c3cd588ae04bc24aae0a191af11ab28437643c351a7a9676c264be0d3e64351f

    • SSDEEP

      3072:v70pdzwruktfpOdq8qamIoUBPDAGFufDhb/BNASUXvQ:vIwruklpsqgfBPDfwHrUXv

    Score
    10/10
    remcosmswinendiscoverypersistencerat

    • Remcos

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

      ratremcos

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks