Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-05-2024 21:39

General

  • Target

    56ed7755596cbebf5045b5ae092bd53e_JaffaCakes118.exe

  • Size

    568KB

  • MD5

    56ed7755596cbebf5045b5ae092bd53e

  • SHA1

    1ab7c4db5124049dafea240b89cfa26e58356e1b

  • SHA256

    d4882f9891573b8583ce81aaf4658b8163c0731d7800a41f5146f4ce34f4c2cc

  • SHA512

    8f00e4f8345aa6a5ec06cab00eca49ec980c46a3c19a7fba86a757a7c09d47f3d6f0d611ce8e801260aaa29ece17815a7204aa5247dc0ea0b57f2bca4abe037d

  • SSDEEP

    12288:eVuOp7v1NAGhtLylx7uyslnjwKpj/05AXjVYyuOk3y+:FecGhtLix7uycbh4p

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

notfnaf

C2

ddns.rbs.pw:24092

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    data.dat

  • keylog_flag

    false

  • keylog_folder

    winsock

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    clowndown-I5YG6M

  • 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

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Remcos

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

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\56ed7755596cbebf5045b5ae092bd53e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\56ed7755596cbebf5045b5ae092bd53e_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:660
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:3624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\winsock\data.dat

    Filesize

    74B

    MD5

    423a05d36ba0625f6d3f8f298108be00

    SHA1

    abed2a68ecc7d6a2c2bb74c186cbff81f153e64e

    SHA256

    7889b00af783f4d30fe95e85eb2d02019840a06f59f1963cee6ecde59af84f29

    SHA512

    1d28046b6e4684c36cec20c5998c423bf2a766c08c2acb3e4ca1704135e692b9d044bdc69d28913d7cf3e1061ec20d51b5893eb75e321bdc4786a408e520fa89

  • memory/660-16-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

  • memory/660-1-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

  • memory/660-2-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

  • memory/660-0-0x0000000074732000-0x0000000074733000-memory.dmp

    Filesize

    4KB

  • memory/660-18-0x0000000074730000-0x0000000074CE1000-memory.dmp

    Filesize

    5.7MB

  • memory/660-17-0x0000000074732000-0x0000000074733000-memory.dmp

    Filesize

    4KB

  • memory/3624-20-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-26-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-13-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-12-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-9-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-7-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-22-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-24-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-5-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-15-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-28-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-30-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-32-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-34-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-36-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-38-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-40-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-42-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3624-44-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB