General

  • Target

    b7d97410c347d47f45e49a7b19736ff47b019c2abd47eb09aba5cd9143b826de.exe

  • Size

    394KB

  • Sample

    240529-b9zjwsdf8t

  • MD5

    46f33e36640b9015918a8aa583eef0e2

  • SHA1

    61cd4c1c1811c15917d35b0b8b81526e823c11e0

  • SHA256

    b7d97410c347d47f45e49a7b19736ff47b019c2abd47eb09aba5cd9143b826de

  • SHA512

    412cd977523d2bd4c37d0b7813bd7cc7ac63792d8f56ac8f66c4d45d908e3b02d434f50c39ccb4ddb533e06a3ad8fdcb814403b8c79e13fc51322c2847e9d8f7

  • SSDEEP

    12288:6PV2e33RSsaxpSIWHDJORsu+JgIhygoRu6Xf:ed4saxpSbjsRIrySGf

Malware Config

Extracted

Family

remcos

Botnet

CLIENT

C2

107.150.18.202:2404

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-J3QQTH

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      b7d97410c347d47f45e49a7b19736ff47b019c2abd47eb09aba5cd9143b826de.exe

    • Size

      394KB

    • MD5

      46f33e36640b9015918a8aa583eef0e2

    • SHA1

      61cd4c1c1811c15917d35b0b8b81526e823c11e0

    • SHA256

      b7d97410c347d47f45e49a7b19736ff47b019c2abd47eb09aba5cd9143b826de

    • SHA512

      412cd977523d2bd4c37d0b7813bd7cc7ac63792d8f56ac8f66c4d45d908e3b02d434f50c39ccb4ddb533e06a3ad8fdcb814403b8c79e13fc51322c2847e9d8f7

    • SSDEEP

      12288:6PV2e33RSsaxpSIWHDJORsu+JgIhygoRu6Xf:ed4saxpSbjsRIrySGf

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Remcos

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

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects executables built or packed with MPress PE compressor

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target

      $PLUGINSDIR/System.dll

    • Size

      11KB

    • MD5

      fbe295e5a1acfbd0a6271898f885fe6a

    • SHA1

      d6d205922e61635472efb13c2bb92c9ac6cb96da

    • SHA256

      a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1

    • SHA512

      2cb596971e504eaf1ce8e3f09719ebfb3f6234cea5ca7b0d33ec7500832ff4b97ec2bbe15a1fbf7e6a5b02c59db824092b9562cd8991f4d027feab6fd3177b06

    • SSDEEP

      192:yPtkiQJr7V9r3Ftr87NfwXQ6whlgi62V7i77blbTc4DI:N7Vxr8IgLgi3sVc4

    Score
    3/10

MITRE ATT&CK Enterprise v15

Tasks