General

  • Target

    SecuriteInfo.com.Win32.DropperX-gen.26931.13262.exe

  • Size

    10KB

  • Sample

    221203-nm94bsfc74

  • MD5

    b9777bf51a4ba4e4e56a54420a6424d6

  • SHA1

    b40382576076e9434462df18c89f48452d63a2e4

  • SHA256

    1810c71bdeb8e7ee7905ed34a5aa793a7036f6c099125c514ab7cd98d2823639

  • SHA512

    dd9750801e549db81488267eb582f2444d49b5f15d53a590e32e99b2d1011390175ea1f81afa52cf50e114d3978317056250b5b60e3342e1304474fd2d3b3dcb

  • SSDEEP

    192:jpcVHO17G6bsFUPpUcmyD8S48stYcFmVc03KY:tcI1b+oyiD8S4ptYcFmVc03K

Malware Config

Extracted

Family

remcos

Botnet

client

C2

37.139.128.4:54345

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    reggeamuzics-MV4QEN

  • 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

Targets

    • Target

      SecuriteInfo.com.Win32.DropperX-gen.26931.13262.exe

    • Size

      10KB

    • MD5

      b9777bf51a4ba4e4e56a54420a6424d6

    • SHA1

      b40382576076e9434462df18c89f48452d63a2e4

    • SHA256

      1810c71bdeb8e7ee7905ed34a5aa793a7036f6c099125c514ab7cd98d2823639

    • SHA512

      dd9750801e549db81488267eb582f2444d49b5f15d53a590e32e99b2d1011390175ea1f81afa52cf50e114d3978317056250b5b60e3342e1304474fd2d3b3dcb

    • SSDEEP

      192:jpcVHO17G6bsFUPpUcmyD8S48stYcFmVc03KY:tcI1b+oyiD8S4ptYcFmVc03K

    • Remcos

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

    • Checks computer location settings

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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks