General

  • Target

    c441c4a1730f4f007d600a25dc94f5ce892cd1c313cce3c213b669f9566fbc81.gz

  • Size

    5KB

  • Sample

    241016-f7bghavdpg

  • MD5

    2be872c561b36ed6077935b39549a5d2

  • SHA1

    5f809712be7c0aef0c83150981f5c7a266115d52

  • SHA256

    c441c4a1730f4f007d600a25dc94f5ce892cd1c313cce3c213b669f9566fbc81

  • SHA512

    e2782fd577062464a6bd33d85dc0768a1c52918adb5205c0f80b869bce5c10394c08a09a146a6392396d1948680ade25d59632972a14a3ba011f168ced1da63c

  • SSDEEP

    96:0NP4qw/C4xq32sFWVvYUO8ntDCAOD2M83stEmfJbT5r1bn0/Ey+ixmsVJ8DhnH:o4qw/C4a2sFYvzjtDbOws3NrN0cy+SJ0

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

185.174.101.218:2404

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-TKX1UQ

  • 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

      KULI500796821_PO20000003.vbs

    • Size

      9KB

    • MD5

      56f94f8aed310e90b5f513b1eb999c69

    • SHA1

      95e42e5458cf0117c08de3c6bda83b699fa9be59

    • SHA256

      a81393b534b9f803d64ca3d43f9e3b8a184a9e790ac20f2f51d347114384e7a2

    • SHA512

      d53890af0815934fb10f4eb3e2eae13da5db60d21a9a89f2426de7bbb5ce7ed495a84a371d8c19ce9b707709b3d18f00bc637262a2d3fc7818333b508af4980e

    • SSDEEP

      192:oiJSEy04EcieX8Qui690HKZRBijzH9Iue0LGmeHkQEvbcB1m:ouz4NHaijzH9ZNLwElDY1m

    • Remcos

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

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks