Overview

overview

10

Static

static

10

4492030951.exe

windows7-x64

10

4492030951.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_3e4f9302ae461234c85684a38be6319145799717a6ef50004fc55f5b22cf42cf

  • Size

    254KB

  • Sample

    241230-ac7css1me1

  • MD5

    f40ffa0bc6da8df318e722b16184e75b

  • SHA1

    7f36763e45646b07024e91447636a6af7a0911e0

  • SHA256

    3e4f9302ae461234c85684a38be6319145799717a6ef50004fc55f5b22cf42cf

  • SHA512

    42bf966e9d39e7df5db93bda8974c8dea7a14c0a131d8b7cab0af1f87a4ab76d8359fd9a8be8d98ca4788c1db60614c2298499f4c765ad3773c6db1fa6531166

  • SSDEEP

    6144:vfsiyI106GURVSqgCsQYnsY3wzi3fvk9CrF9D:XZyIG6GGShQYnNwu3fvYs

Score
10/10
remcosluderdiscoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

remcos

Version

3.3.2 Pro

Botnet

Luder

C2

31.220.44.253:5222

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

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %UserProfile%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    h908hn+0938g3-Y4186N

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    svchost

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Targets

    • Target

      4492030951

    • Size

      463KB

    • MD5

      56cf2e34e8c4b39d3ecb18935a1e96df

    • SHA1

      d7cddc46a566dffff1a808526f48c96ef4b64302

    • SHA256

      e1bd512161ccc65e6dd85edda13d9b97d96867d8c45dbce407f7455d8f12a90c

    • SHA512

      387bb997d64d5d6c38b5e9854ad595860bb482eab3df7064676fbccb8943326dbc9b8166d412d5750a7792ea6eb9f35526b8f7e76f811dd4bcf2ac3fc66ccc2c

    • SSDEEP

      12288:uegN0jfYLclGb0bVT6e+MT2MffZS/ghSYo:QNywLclGIeMT2MXZRhSV

    Score
    10/10
    remcosluderdiscoveryevasionpersistencerattrojan

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • UAC bypass

      evasiontrojan

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks