General

  • Target

    27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe

  • Size

    1004KB

  • Sample

    241115-crdp5szrer

  • MD5

    b55d24e6b8e053c08bdd57534af83734

  • SHA1

    13473f286428aa39869a9580c7f3fbb0fde8d9ed

  • SHA256

    27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b

  • SHA512

    1957bdfa97e1bd9309040f64d22c7348df0ca692f79a3136cb0203e19e5e4a67c5d8588e758f3e43a0652158a22042bd694635f0baaaa31c8d1c826432da8f22

  • SSDEEP

    24576:99CJVyR2dzExjVlDjcFXcq5meyUBNrllwKkwa9:9UO2dCzmeeT/sS

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

87.120.120.25:5940

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-13MD3U

  • 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

      27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b.exe

    • Size

      1004KB

    • MD5

      b55d24e6b8e053c08bdd57534af83734

    • SHA1

      13473f286428aa39869a9580c7f3fbb0fde8d9ed

    • SHA256

      27e9d8399b11830c69e45b1d2f37dbde869ff3ec1185ea640c209399fb1d737b

    • SHA512

      1957bdfa97e1bd9309040f64d22c7348df0ca692f79a3136cb0203e19e5e4a67c5d8588e758f3e43a0652158a22042bd694635f0baaaa31c8d1c826432da8f22

    • SSDEEP

      24576:99CJVyR2dzExjVlDjcFXcq5meyUBNrllwKkwa9:9UO2dCzmeeT/sS

    • Remcos

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

    • Remcos family

    • 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

    • 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.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks