Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3044
    • 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:4984
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      2⤵
        PID:744
      • 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:2992

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2992-142-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB

    • memory/2992-146-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB

    • memory/2992-151-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB

    • memory/2992-139-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB

    • memory/2992-141-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB

    • memory/3044-132-0x0000000000D10000-0x0000000000DB0000-memory.dmp

      Filesize

      640KB

    • memory/3044-133-0x0000000005780000-0x000000000581C000-memory.dmp

      Filesize

      624KB

    • memory/3044-134-0x0000000005DD0000-0x0000000006374000-memory.dmp

      Filesize

      5.6MB

    • memory/4984-150-0x0000000006940000-0x0000000006962000-memory.dmp

      Filesize

      136KB

    • memory/4984-136-0x0000000002B60000-0x0000000002B96000-memory.dmp

      Filesize

      216KB

    • memory/4984-143-0x00000000055C0000-0x00000000055E2000-memory.dmp

      Filesize

      136KB

    • memory/4984-144-0x0000000005DD0000-0x0000000005E36000-memory.dmp

      Filesize

      408KB

    • memory/4984-140-0x00000000057A0000-0x0000000005DC8000-memory.dmp

      Filesize

      6.2MB

    • memory/4984-147-0x0000000006470000-0x000000000648E000-memory.dmp

      Filesize

      120KB

    • memory/4984-148-0x0000000007430000-0x00000000074C6000-memory.dmp

      Filesize

      600KB

    • memory/4984-149-0x00000000068F0000-0x000000000690A000-memory.dmp

      Filesize

      104KB

    • memory/4984-145-0x0000000005E40000-0x0000000005EA6000-memory.dmp

      Filesize

      408KB