Analysis

  • max time kernel
    1199s
  • max time network
    1201s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-04-2024 17:19

General

  • Target

    Tax Document/TAX DOCUMENTS.pdf.exe

  • Size

    39KB

  • MD5

    f1b14f71252de9ac763dbfbfbfc8c2dc

  • SHA1

    dcc2dcb26c1649887f1d5ae557a000b5fe34bb98

  • SHA256

    796ea1d27ed5825e300c3c9505a87b2445886623235f3e41258de90ba1604cd5

  • SHA512

    636a32fb8a88a542783aa57fe047b6bca47b2bd23b41b3902671c4e9036c6dbb97576be27fd2395a988653e6b63714277873e077519b4a06cdc5f63d3c4224e0

  • SSDEEP

    768:YRQnUhG5bZDOTpkdD82YbQkRFokFWIILPUh:FWObZDOTpk5T6zqAh

Score
10/10

Malware Config

Extracted

Family

remcos

Version

4.9.4 Pro

Botnet

RemoteHost

C2

78.142.18.109:2401

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

    taxinfor

  • mouse_option

    false

  • mutex

    Rmc-4IWHC2

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Tax Document\TAX DOCUMENTS.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Tax Document\TAX DOCUMENTS.pdf.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:2356

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\taxinfor\logs.dat

    Filesize

    144B

    MD5

    e95d16d5ff109f8662bec8c497f67824

    SHA1

    a4bdb6c227cdd7851d3e96796c1616b0b0098abb

    SHA256

    8d3f71044b9781207b07b87fbb60dfe7bd9381ed6bd8ebd79998648ca7bab40c

    SHA512

    97abc52679cf7d9997dfadc6caa2b8e4f1c831b4e06c2d0a1e0c63a69ca8fdbe307f755461f456c27aa75062bd30da3da6686e79c688f878401614a9b1047d68

  • memory/2356-33-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-9-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-3-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-34-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-6-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-7-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-8-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-44-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-10-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-14-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-16-0x00000000005D0000-0x0000000000666000-memory.dmp

    Filesize

    600KB

  • memory/2356-20-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-1-0x0000000000550000-0x00000000005C6000-memory.dmp

    Filesize

    472KB

  • memory/2356-45-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-23-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-0-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-4-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-2-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-22-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-55-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-67-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-68-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-77-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-78-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-88-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-89-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-99-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-100-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-110-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-111-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-122-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-123-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB

  • memory/2356-132-0x0000000000060000-0x00000000000E0000-memory.dmp

    Filesize

    512KB