Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 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:2128
    • 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:2264

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    74B

    MD5

    2bebfbfe95c2ff4053fc8f98d169d71a

    SHA1

    b842ec1dbf450f496d14cfef71d66da0e541317e

    SHA256

    0593ccc3fded5ff5edf1c1623402f012387f52d8427a0eb177b1e8bd329a484d

    SHA512

    2e8f2f0e399dcc43b2cd95f35295b6bb1a4554f8ba8e8bbaaa27ccf69656179fcdfd74db84eb87803782d375ac6990f1e8f087049dd0fbbdf3af2b462bf951a4

  • memory/2128-0-0x0000000074EB1000-0x0000000074EB2000-memory.dmp

    Filesize

    4KB

  • memory/2128-1-0x0000000074EB0000-0x000000007545B000-memory.dmp

    Filesize

    5.7MB

  • memory/2128-2-0x0000000074EB0000-0x000000007545B000-memory.dmp

    Filesize

    5.7MB

  • memory/2128-24-0x0000000074EB0000-0x000000007545B000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-20-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-28-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-10-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-8-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-6-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-7-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-16-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-17-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-21-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-13-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-23-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-9-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-26-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2264-30-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-5-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-32-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-34-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-36-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-38-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-40-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-42-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-43-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-46-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-48-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2264-50-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB