General

  • Target

    4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a

  • Size

    6KB

  • Sample

    230203-frhkwaed6z

  • MD5

    679104fb0479ff61c4b5e4b88f77d94b

  • SHA1

    bfbcb5d48fb4ab25d52e4e1bedf37a4e7a4a3cab

  • SHA256

    4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a

  • SHA512

    7cb36200865267885939956614a7b8603cd16575a3857e0ecc238ff22d296b29bfb208bb11f61f3856278f6b4585afdb2c8456d2f2630f0fbc33fa298df0253e

  • SSDEEP

    192:zU3efq7iEM9gdH98dfQbLE5lF22vjWwID:Q3efq7iEM9gdH98dfgLE5lI2vjlI

Malware Config

Extracted

Family

purecrypter

C2

https://onedrive.live.com/download?cid=A113DD34A0D77810&resid=A113DD34A0D77810%21125&authkey=AIgE8y9D-kUp_qA

Extracted

Family

remcos

Botnet

RemoteHost

C2

top.thekillforabuse1.xyz:1068

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

    Rmc-R762FE

  • 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

      4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a

    • Size

      6KB

    • MD5

      679104fb0479ff61c4b5e4b88f77d94b

    • SHA1

      bfbcb5d48fb4ab25d52e4e1bedf37a4e7a4a3cab

    • SHA256

      4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a

    • SHA512

      7cb36200865267885939956614a7b8603cd16575a3857e0ecc238ff22d296b29bfb208bb11f61f3856278f6b4585afdb2c8456d2f2630f0fbc33fa298df0253e

    • SSDEEP

      192:zU3efq7iEM9gdH98dfQbLE5lF22vjWwID:Q3efq7iEM9gdH98dfgLE5lI2vjlI

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

    • 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