General

  • Target

    7053c8d9983dc949e5d559ba1b006b8ba9c059a23e06cd87c857c3d04201381b.exe

  • Size

    832KB

  • Sample

    241209-cw6lqayjaw

  • MD5

    f443c222255e35ee6dd0e194360c23ce

  • SHA1

    a8c84df31a575ab84e6255b89351ce877c9619c8

  • SHA256

    7053c8d9983dc949e5d559ba1b006b8ba9c059a23e06cd87c857c3d04201381b

  • SHA512

    ca58f238cf2599fabd5c34faa34630e2f158cc87a612ad1783a5982b7c835bf7941ee68699dc3e9486f01b578caf6ac53a15f22b92398aa32c8d8742d202fe53

  • SSDEEP

    12288:OeB1Nd/75yaHV5epXyU8+uggQdbGqDEEiHczNGNB4aEPvl1bDDdOJVe3e+mraL:OW1D5yeV5eNyB7QtHDE3HcE0DA8mraL

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.210.150.26:3678

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-MKYDDH

  • 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

      7053c8d9983dc949e5d559ba1b006b8ba9c059a23e06cd87c857c3d04201381b.exe

    • Size

      832KB

    • MD5

      f443c222255e35ee6dd0e194360c23ce

    • SHA1

      a8c84df31a575ab84e6255b89351ce877c9619c8

    • SHA256

      7053c8d9983dc949e5d559ba1b006b8ba9c059a23e06cd87c857c3d04201381b

    • SHA512

      ca58f238cf2599fabd5c34faa34630e2f158cc87a612ad1783a5982b7c835bf7941ee68699dc3e9486f01b578caf6ac53a15f22b92398aa32c8d8742d202fe53

    • SSDEEP

      12288:OeB1Nd/75yaHV5epXyU8+uggQdbGqDEEiHczNGNB4aEPvl1bDDdOJVe3e+mraL:OW1D5yeV5eNyB7QtHDE3HcE0DA8mraL

    • Remcos

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

    • Remcos family

    • UAC bypass

    • Windows security bypass

    • Detected Nirsoft tools

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

    • Looks for VirtualBox Guest Additions in registry

    • 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.

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Uses the VBS compiler for execution

    • Windows security modification

    • Accesses Microsoft Outlook accounts

    • Checks whether UAC is enabled

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks