Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-09-2024 08:33

General

  • Target

    6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96.exe

  • Size

    914KB

  • MD5

    57c246dd2b2221edbfd54ff9246a0099

  • SHA1

    3e4dc6e19407ff041b25629082a90382be7b957f

  • SHA256

    6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96

  • SHA512

    5a49e14dfaa8b6f53bc9e5da299f43d199389ded897c9a23ec6615c396bc83e6589787f0704fa097c395296d643fd0b6b3e83dbdddad385d2ee5af5825cea9e2

  • SSDEEP

    24576:+Eb5NCjPBS2nv0frerFWM+u848EUjooYgyUKHdw:N5N+5S2nv0fKxIuRUjoSK

Malware Config

Extracted

Family

remcos

Botnet

throttle_8967

C2

154.216.18.217:8967

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-4SV4HO

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96.exe
    "C:\Users\Admin\AppData\Local\Temp\6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\6fb1afbb72d328bdaca9c019107c5ce12c81bfbabac1f1b7426db29ffec79f96.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2672
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VdrrjnwYc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2800
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VdrrjnwYc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D6E.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2656
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp3D6E.tmp

    Filesize

    1KB

    MD5

    ca0932fe6969d035634c17e5c04c892d

    SHA1

    80779503eb9a8345f404f7c9e31dbb0faa700599

    SHA256

    82f8ecdfad818f2c235ca45cb18e06674b1a6ae51e86172c25a435f784f23efc

    SHA512

    c865367aaac3e5484d5c2c2019b75c6844f5cae8ef167154a53e304f8ca8def8fda6eef9a0902e56b64992c79a442c6cb4d40443c45837d8078ef21a29ce424b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    d9870ae4091ddaeba0b16191098d506a

    SHA1

    2b8c73499244ddb7a170d19d7e0f7457c9466e63

    SHA256

    cc9de6ef7d3604a8e463befbfab016e00090b4c2328c39243c3d05746d6a3b8e

    SHA512

    af9c5d9ffeb1f5a0d5c1f87d4b12547fc419b53b6c6eb6447baa3c30c03eadcccfc68a1a7968fa4575a58ca2e45780ba79d1d8ba0dbee0577aece0e7362528c0

  • memory/1748-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-66-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-83-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-82-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-35-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1748-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-52-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-34-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-80-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-76-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-81-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-79-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-54-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-55-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-58-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-59-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-60-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-61-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-62-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-63-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-64-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-65-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-67-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-68-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-69-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-70-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-71-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-72-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-74-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1748-75-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2016-40-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2016-6-0x0000000004D10000-0x0000000004DD0000-memory.dmp

    Filesize

    768KB

  • memory/2016-5-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2016-4-0x00000000745DE000-0x00000000745DF000-memory.dmp

    Filesize

    4KB

  • memory/2016-3-0x0000000000510000-0x0000000000528000-memory.dmp

    Filesize

    96KB

  • memory/2016-2-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2016-1-0x00000000009F0000-0x0000000000ADA000-memory.dmp

    Filesize

    936KB

  • memory/2016-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

    Filesize

    4KB