Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    13-07-2024 13:09

General

  • Target

    f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe

  • Size

    999KB

  • MD5

    04a0409b44c06cd15f68cef8bdfc9b17

  • SHA1

    ec17ab0fb9a01fa208da02445056b68f30232520

  • SHA256

    f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48

  • SHA512

    48fad9e7c7a3a7686b308a4e1b0d122e00b964b6c179f31d54bd6207c9b085cb0aa246c7b4b6ec1f875d84f33582058b63353f8db11f20760f5084a3efb8b8ac

  • SSDEEP

    24576:iLl1+oR/hMvKHTnJkRvxAMAvu2lHu6wRudqGlXSo:AZqVxAzvuOKqfS

Malware Config

Extracted

Family

remcos

Botnet

5764576

C2

172.93.218.178:45667

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

    765-XJJE0J

  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe
    "C:\Users\Admin\AppData\Local\Temp\f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ppUSXdJgAIFILG.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1988
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ppUSXdJgAIFILG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3C07.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2868
    • C:\Users\Admin\AppData\Local\Temp\f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe
      "C:\Users\Admin\AppData\Local\Temp\f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe"
      2⤵
        PID:2732

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp3C07.tmp

      Filesize

      1KB

      MD5

      dc5c8be200286eb526a5f958ef0ecd85

      SHA1

      93e2babcc32e4caef2e806bb4a6cdde6aad65bd2

      SHA256

      b5d98f74df457536761b1fa5badaee5ec5cfc64e087eb39b6babdce5831d267f

      SHA512

      42b04c99a5a1bd36472253bb6c6845326b78becd84408289f11a8fe68f0ed49cfea147c1fbdc316e60482ead2155fe62a4ee06fabec043df664c25c5cf714c5d

    • memory/2508-0-0x0000000073ECE000-0x0000000073ECF000-memory.dmp

      Filesize

      4KB

    • memory/2508-1-0x0000000000F50000-0x0000000001050000-memory.dmp

      Filesize

      1024KB

    • memory/2508-2-0x0000000073EC0000-0x00000000745AE000-memory.dmp

      Filesize

      6.9MB

    • memory/2508-3-0x00000000004D0000-0x00000000004E0000-memory.dmp

      Filesize

      64KB

    • memory/2508-4-0x0000000000640000-0x000000000064E000-memory.dmp

      Filesize

      56KB

    • memory/2508-5-0x0000000005070000-0x000000000512E000-memory.dmp

      Filesize

      760KB

    • memory/2508-34-0x0000000073EC0000-0x00000000745AE000-memory.dmp

      Filesize

      6.9MB

    • memory/2732-19-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-15-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-33-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-32-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-31-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-25-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-23-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-22-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-13-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-17-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-11-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-28-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2732-35-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-36-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-37-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-40-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-41-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-42-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-43-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-44-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-45-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-46-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2732-47-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB