General

  • Target

    4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe

  • Size

    856KB

  • Sample

    241204-czjlcsxkew

  • MD5

    b7b504ea022610fe69940fd54fd2bc27

  • SHA1

    8cb39de97c36eb8328436ffe21be24742925e652

  • SHA256

    4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87

  • SHA512

    4f38f6ff589cb607c2cbd5be4be78c5dffe9f03723ec9c9eee9c606b9a8143ade83dbd3c2639f2401ee47232b899fb9dbe9dde7fea5196c31483d2b552f4b313

  • SSDEEP

    24576:KdeRzboLmkwWQ6Q2l/4SPTIXkORnLeV35YryHC:CyO37l5TkzRLePYryHC

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.210.150.26:8787

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-R1T905

  • 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

      4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe

    • Size

      856KB

    • MD5

      b7b504ea022610fe69940fd54fd2bc27

    • SHA1

      8cb39de97c36eb8328436ffe21be24742925e652

    • SHA256

      4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87

    • SHA512

      4f38f6ff589cb607c2cbd5be4be78c5dffe9f03723ec9c9eee9c606b9a8143ade83dbd3c2639f2401ee47232b899fb9dbe9dde7fea5196c31483d2b552f4b313

    • SSDEEP

      24576:KdeRzboLmkwWQ6Q2l/4SPTIXkORnLeV35YryHC:CyO37l5TkzRLePYryHC

    • 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

    • Drops startup file

    • 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