Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 08:15

General

  • Target

    NhGG.exe

  • Size

    591KB

  • MD5

    ab6ebb46942e94eb3661c4c86b099e8b

  • SHA1

    f54817be0255ff370d2f9272b6593d9aacf1b6b8

  • SHA256

    fff14d27cfcfd3a46729a41bd6dcbb09e667f894e2c85b4e7eb5098faccfa6ab

  • SHA512

    0c548efa026dd3d49b1cbe894ce1f2e75df4f965558e89677ef7199f67d019d4a1bb4ac7624cd1b307515018196b380205bd7aff7e57a2aeffa4418dd101c731

  • SSDEEP

    12288:qHvJn9wxkMn3Y7LnrjQx5PZ4BL2WwcULxjW3Vst0KCi/pB7o:qhn6ksY7jrsx5+MxjWs0KNB

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

51.75.209.245:2404

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-CMFPLR

  • 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

Signatures

  • Remcos

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

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NhGG.exe
    "C:\Users\Admin\AppData\Local\Temp\NhGG.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\NhGG.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Systjnjem.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:520
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2004

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/520-56-0x0000000000000000-mapping.dmp

  • memory/520-78-0x000000006FC40000-0x00000000701EB000-memory.dmp

    Filesize

    5.7MB

  • memory/520-76-0x000000006FC40000-0x00000000701EB000-memory.dmp

    Filesize

    5.7MB

  • memory/1268-54-0x00000000001D0000-0x000000000026A000-memory.dmp

    Filesize

    616KB

  • memory/1268-55-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

    Filesize

    8KB

  • memory/1268-58-0x00000000005A0000-0x00000000005BC000-memory.dmp

    Filesize

    112KB

  • memory/2004-65-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-64-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-62-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-66-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-67-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-69-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-72-0x00000000004327A4-mapping.dmp

  • memory/2004-71-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-75-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-60-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-77-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-59-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2004-79-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB