General

  • Target

    23012025_1004_22012025_Quotation.GZ

  • Size

    883KB

  • Sample

    250123-l4bwrawqbj

  • MD5

    6cfb20460ed61bbfe5e34a246325b4c0

  • SHA1

    d5cadacc0aa62ac0b3c51b220ba7bf02ebf71f2b

  • SHA256

    e239f8f3c44baa845f1b8c51bea11adbf0c586e70cc866dfd267f14d495c9db4

  • SHA512

    509667205663c780c6d617e1893da178a7645abd98595b5acddd5abd9deb372ed5b394c94d217cfcc78796f0f1853e46ffe23dc079e6c2483c7e951c57491168

  • SSDEEP

    12288:a0cCyHaYypucxGIA5GiEd0j+vMKwXhX81u8Ejl5LAKcPP1hGqI30OHdVIwQtbNAU:+CiAA58uuw4OLjcPPr5Kn0bNAU

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

2.58.56.182:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-GM05WY

  • 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

      Quotation.exe

    • Size

      987KB

    • MD5

      1058789883ec68a66fc099d6cc6fefb9

    • SHA1

      9137b35e3480c2f9fc873e351851d421d8d195d9

    • SHA256

      cff8bf19e834f403b7914c1fae20c0089b2a75a29a769c1e46aa3bb234171d1b

    • SHA512

      54c024fe605a2ac68d5662e20bbb2c8695b8a13dac14e9d9571f001d2f949ffde0fb0a5152e03122336b58390d6e644d35a685a20c7d2f26a6bbcbb50106a4c7

    • SSDEEP

      24576:ovpBEkDWCvU7Ep0EWh04DMRukIFAb4E6T:ovIkDpvU7vtrgI/FAbh6T

    • Remcos

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

    • Remcos family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks