General

  • Target

    7530a6c1b0af5633319393a4658cccbe0f098b61ace0eb8c19f9d54201dca1ad.img

  • Size

    1.9MB

  • Sample

    240320-ctkw8sed99

  • MD5

    190289d0ddede637f0ac6f3782cec3a3

  • SHA1

    8369635c92be1a222ea3683ef768b91865d57400

  • SHA256

    7530a6c1b0af5633319393a4658cccbe0f098b61ace0eb8c19f9d54201dca1ad

  • SHA512

    ca820cf0d8d719f2b54ae4037577cf288b7744596f7e84927dfbceb42faf26b239e4b21df9e1ac26265842e45f3e098356fdd39a51f46877e3b1b1b1fca62cc1

  • SSDEEP

    24576:d16ftUKJqekypS2EBJYewl7+6izHE+lsx4sAXsd1AqVjxW7RXtLgiED+enxbIl:dAfgQvslHE+l4wgmNdtECebIl

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

172.245.208.13:4445

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-WKS19H

  • 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

      MACHINE SPECIFICATIONS.exe

    • Size

      1.4MB

    • MD5

      9a57df005b00ca4c9f0cd5f7a3d7e7e9

    • SHA1

      63547644d4b7fe80f696bc8aae6f09830df81b64

    • SHA256

      0168646bfeec864982cff43a4969ad4d0ab5e0df69cd27f7334fcf339f752e4c

    • SHA512

      451b64d9798fdec6140b4ee919145d3b449aa88551d1ebfd4af3c4639191ce9075f2bc873cc4e6478d310b4e141c3a51d800f4a521d1bb37e45f752caafb3bc9

    • SSDEEP

      24576:916ftUKJqekypS2EBJYewl7+6izHE+lsx4sAXsd1AqVjxW7RXtLgiED+enxbIl:9AfgQvslHE+l4wgmNdtECebIl

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Remcos

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

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects executables built or packed with MPress PE compressor

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • ModiLoader Second Stage

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Executes dropped EXE

    • Loads dropped DLL

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks