General

  • Target

    c1870f3378e10b41656fdb1ad97149e8ac40264f5887cb917d266eb036c30bc2.exe

  • Size

    26KB

  • Sample

    240831-cb5hxsyhqa

  • MD5

    a5a3902eda13fdecf1320b900d2e5395

  • SHA1

    3ec2b7adde1d0b5ef806f079bc0d669e32cb65ca

  • SHA256

    c1870f3378e10b41656fdb1ad97149e8ac40264f5887cb917d266eb036c30bc2

  • SHA512

    e40af0c9a62ba2b47801fb164a608da0829bc1c6d6b64a985af64721d51f9400527e5aef3345409ffb31152582444d524789931b5a9fcf9edacf69424fed765b

  • SSDEEP

    768:cACzsa2x1nyUuHMFSlWXokQPhbOcjC49N0b:r0b2x1nyUuHMgIXokQPgcjC49NG

Malware Config

Extracted

Family

remcos

Botnet

marshal11

C2

185.150.191.117:4609

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-O92MFO

  • 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

      c1870f3378e10b41656fdb1ad97149e8ac40264f5887cb917d266eb036c30bc2.exe

    • Size

      26KB

    • MD5

      a5a3902eda13fdecf1320b900d2e5395

    • SHA1

      3ec2b7adde1d0b5ef806f079bc0d669e32cb65ca

    • SHA256

      c1870f3378e10b41656fdb1ad97149e8ac40264f5887cb917d266eb036c30bc2

    • SHA512

      e40af0c9a62ba2b47801fb164a608da0829bc1c6d6b64a985af64721d51f9400527e5aef3345409ffb31152582444d524789931b5a9fcf9edacf69424fed765b

    • SSDEEP

      768:cACzsa2x1nyUuHMFSlWXokQPhbOcjC49N0b:r0b2x1nyUuHMgIXokQPgcjC49NG

    • Remcos

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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks