Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    06-06-2023 13:49

General

  • Target

    file.exe

  • Size

    571KB

  • MD5

    58a91896eaf6efe03ffe6ebb7b731792

  • SHA1

    e3ec7807b22e91e887dd1bc752c426041607216f

  • SHA256

    dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e

  • SHA512

    9c764a0ec4d5f628fe998d90836fe39b2e112ebb21dc97e323c5ef0e50d6790ed36b5d89609c4aa4be2a5aaf6f4859e6e5a70150ce8b446868189417d9dffc23

  • SSDEEP

    12288:OBm+u0O5pDETlQ6ocFa59nBTDvdeLu3jaLWGaGAXd:uzAgQ6Y59hDvdeLuTwK

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:55433

185.65.134.166:55433

10.11.0.5:55433

45.128.234.54:55433

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-UQ90W9

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1960

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1960-69-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-58-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-89-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-57-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-70-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-59-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-60-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-61-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-62-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1960-64-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-71-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-66-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-68-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-88-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-87-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-63-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-72-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-74-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-75-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-77-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-79-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-80-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-81-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-83-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/1960-85-0x0000000000400000-0x0000000000480000-memory.dmp
    Filesize

    512KB

  • memory/2000-55-0x0000000000340000-0x0000000000346000-memory.dmp
    Filesize

    24KB

  • memory/2000-56-0x00000000003D0000-0x00000000003DC000-memory.dmp
    Filesize

    48KB

  • memory/2000-54-0x00000000003F0000-0x0000000000484000-memory.dmp
    Filesize

    592KB