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Overview

overview

10

Static

static

PURCHASE O...pdf.js

windows7-x64

10

PURCHASE O...pdf.js

windows10-2004-x64

10

Sharing

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General

  • Target

    PURCHASE ORDER NO4 pdf.js

  • Size

    867KB

  • Sample

    221124-ml7fdabf91

  • MD5

    2fe5245098354f7815f23996a250917a

  • SHA1

    0ce8e1c4b93001d61aea6959daa71bed65544900

  • SHA256

    e7df824addac322647a4fe1939335084a4c72620d94c4fd7b8665e703e3f7fde

  • SHA512

    1226bec6e600114353c9c733cc8362e4a3b66fd90e42a890153b9e828201a503128a5aed308ca586069ff71e9a7567ae765b0aa517811a81eda71ecc634bb0bb

  • SSDEEP

    12288:pk7NfBYCQ7TWo3g3C23BpIJ0qcpJpqIsIwGjzgtDIWihh0Kd22vuepMSZ1VA7SqS:Qxp2DI/Z1VA/S

Score
10/10
remcosvjw0rmremotehostpersistencerattrojanworm

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.139.105.174:3111

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-XI5CH7

  • 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

      PURCHASE ORDER NO4 pdf.js

    • Size

      867KB

    • MD5

      2fe5245098354f7815f23996a250917a

    • SHA1

      0ce8e1c4b93001d61aea6959daa71bed65544900

    • SHA256

      e7df824addac322647a4fe1939335084a4c72620d94c4fd7b8665e703e3f7fde

    • SHA512

      1226bec6e600114353c9c733cc8362e4a3b66fd90e42a890153b9e828201a503128a5aed308ca586069ff71e9a7567ae765b0aa517811a81eda71ecc634bb0bb

    • SSDEEP

      12288:pk7NfBYCQ7TWo3g3C23BpIJ0qcpJpqIsIwGjzgtDIWihh0Kd22vuepMSZ1VA7SqS:Qxp2DI/Z1VA/S

    Score
    10/10
    remcosvjw0rmremotehostpersistencerattrojanworm

    • Remcos

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

      ratremcos

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks