Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/10/2022, 05:32

General

  • Target

    tmp.exe

  • Size

    617KB

  • MD5

    be8e3dfb9f3668de8c5497b3e7d3f9a5

  • SHA1

    c614d3eaca3463d527ee49ec58a9f96eea17a147

  • SHA256

    4e24f18c609d04ba55264362e311e7536eda95872bf42a3327b7970f2b8eaacb

  • SHA512

    b5eb26de84bc0d4b7928093ca4122958e580589bdd2a56fc76d9fec9ec6b011acc7f625397f379fc0e9ed862ff1e32c81441bc7e27ff39d73de41eab26bad97d

  • SSDEEP

    12288:W4A5JdZwbesBHi2BD9iw7a3Yn7d5IrulMKCi/O:WZdZDshxAWznhFOKN

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

FavourHost

C2

194.147.140.100:2207

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

    Remcos-DSZSE6

  • 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 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\tmp.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QWRTYDSHJ.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1244
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2032

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/780-54-0x0000000000B00000-0x0000000000BA0000-memory.dmp

    Filesize

    640KB

  • memory/780-55-0x0000000076321000-0x0000000076323000-memory.dmp

    Filesize

    8KB

  • memory/780-58-0x0000000000610000-0x000000000062C000-memory.dmp

    Filesize

    112KB

  • memory/1244-77-0x000000006FDD0000-0x000000007037B000-memory.dmp

    Filesize

    5.7MB

  • memory/1244-76-0x000000006FDD0000-0x000000007037B000-memory.dmp

    Filesize

    5.7MB

  • memory/2032-65-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-64-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-62-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-66-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-67-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-69-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-71-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-75-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-60-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-59-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-78-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/2032-79-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB