General

  • Target

    PO_33948576383mth_pdf.tar.gz.exe.tar

  • Size

    890KB

  • Sample

    240924-sagcpszcrk

  • MD5

    9543f15230a8f2241cbe875809389283

  • SHA1

    815b24b207e8176ed9f4daf24861bcf9d895112f

  • SHA256

    3c0f9981e85d84d77fbba8ee32632a07c6fcee5ec7570a7d1b854f02ed3374d4

  • SHA512

    9b4a53d9168d3f8baa723e18a95fdef2cc50b4aafca63d523a83f693016bac1a3501c0afdd853e0ca7bf2466e6a6159a843d8aa281f8a379d9166ba54f51562a

  • SSDEEP

    24576:SnHNRRr5sff/UYS2DzidV2P6ktb8amzIoI:SnHNRRr5Q0YS2ydwR8TI

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      PO_33948576383mth_pdf.exe

    • Size

      889KB

    • MD5

      f0689dfa240f533acc8079bcbff064e8

    • SHA1

      b4f9d193d9ff8f0302af25212dffc67292fb752c

    • SHA256

      993f261bd20b55d4a58dc129e2ef3d70ef23a7999e2d6b27d4eca2eb8b57e933

    • SHA512

      12dcb5d05a8811ca7070a98acd844117097849044031920559d7043059d803effb54fe6f0cd0b579e899c964439f9929db6c00afbd6616cf2e949ab2df9c40b4

    • SSDEEP

      24576:EnHNRRr5sff/UYS2DzidV2P6ktb8amzIoI:EnHNRRr5Q0YS2ydwR8TI

    • Remcos

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

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks