Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-07-2024 23:39

General

  • Target

    PO 11072024.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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe
    "C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:556
    • 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:2524
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ppUSXdJgAIFILG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC592.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2556
    • C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe
      "C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe"
      2⤵
        PID:1932
      • C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe
        "C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe"
        2⤵
          PID:4368
        • C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe
          "C:\Users\Admin\AppData\Local\Temp\PO 11072024.exe"
          2⤵
            PID:4492

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u1hrkzfd.pqg.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmpC592.tmp

          Filesize

          1KB

          MD5

          8a95b7f85db23348fd1e456b30fedede

          SHA1

          89b5304104279657eb8982ad8cd58834c8bfc283

          SHA256

          0a41df1ae34d3417881f569b1ad05c40384e961cfb992596e49cdd240af644cd

          SHA512

          94aa7a20c03077738396e47198c374c5a4f80097b0d79fe85dfeea9d3fd31db2928c1dbc942b6b0f647a63c3d7715ef8e13a71a820f0ffaa38ad57a4e0a56977

        • memory/556-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

          Filesize

          4KB

        • memory/556-1-0x0000000000810000-0x0000000000910000-memory.dmp

          Filesize

          1024KB

        • memory/556-2-0x0000000005920000-0x0000000005EC4000-memory.dmp

          Filesize

          5.6MB

        • memory/556-3-0x0000000005370000-0x0000000005402000-memory.dmp

          Filesize

          584KB

        • memory/556-4-0x0000000005320000-0x000000000532A000-memory.dmp

          Filesize

          40KB

        • memory/556-5-0x0000000074B90000-0x0000000075340000-memory.dmp

          Filesize

          7.7MB

        • memory/556-6-0x0000000005910000-0x0000000005920000-memory.dmp

          Filesize

          64KB

        • memory/556-7-0x0000000006560000-0x000000000656E000-memory.dmp

          Filesize

          56KB

        • memory/556-8-0x00000000065C0000-0x000000000667E000-memory.dmp

          Filesize

          760KB

        • memory/556-9-0x00000000069E0000-0x0000000006A7C000-memory.dmp

          Filesize

          624KB

        • memory/556-42-0x0000000074B90000-0x0000000075340000-memory.dmp

          Filesize

          7.7MB

        • memory/2524-20-0x00000000061E0000-0x0000000006202000-memory.dmp

          Filesize

          136KB

        • memory/2524-68-0x0000000007FD0000-0x0000000007FEA000-memory.dmp

          Filesize

          104KB

        • memory/2524-16-0x0000000005A80000-0x00000000060A8000-memory.dmp

          Filesize

          6.2MB

        • memory/2524-18-0x0000000074B90000-0x0000000075340000-memory.dmp

          Filesize

          7.7MB

        • memory/2524-19-0x0000000074B90000-0x0000000075340000-memory.dmp

          Filesize

          7.7MB

        • memory/2524-62-0x0000000007C90000-0x0000000007CAA000-memory.dmp

          Filesize

          104KB

        • memory/2524-22-0x00000000062F0000-0x0000000006356000-memory.dmp

          Filesize

          408KB

        • memory/2524-21-0x0000000006280000-0x00000000062E6000-memory.dmp

          Filesize

          408KB

        • memory/2524-34-0x0000000006360000-0x00000000066B4000-memory.dmp

          Filesize

          3.3MB

        • memory/2524-40-0x0000000006960000-0x000000000697E000-memory.dmp

          Filesize

          120KB

        • memory/2524-72-0x0000000074B90000-0x0000000075340000-memory.dmp

          Filesize

          7.7MB

        • memory/2524-69-0x0000000007FB0000-0x0000000007FB8000-memory.dmp

          Filesize

          32KB

        • memory/2524-41-0x0000000006D20000-0x0000000006D6C000-memory.dmp

          Filesize

          304KB

        • memory/2524-15-0x0000000074B90000-0x0000000075340000-memory.dmp

          Filesize

          7.7MB

        • memory/2524-67-0x0000000007ED0000-0x0000000007EE4000-memory.dmp

          Filesize

          80KB

        • memory/2524-14-0x0000000005410000-0x0000000005446000-memory.dmp

          Filesize

          216KB

        • memory/2524-66-0x0000000007EC0000-0x0000000007ECE000-memory.dmp

          Filesize

          56KB

        • memory/2524-65-0x0000000007E90000-0x0000000007EA1000-memory.dmp

          Filesize

          68KB

        • memory/2524-64-0x0000000007F10000-0x0000000007FA6000-memory.dmp

          Filesize

          600KB

        • memory/2524-63-0x0000000007D00000-0x0000000007D0A000-memory.dmp

          Filesize

          40KB

        • memory/2524-48-0x0000000006F20000-0x0000000006F52000-memory.dmp

          Filesize

          200KB

        • memory/2524-49-0x000000006F6A0000-0x000000006F6EC000-memory.dmp

          Filesize

          304KB

        • memory/2524-59-0x0000000006FB0000-0x0000000006FCE000-memory.dmp

          Filesize

          120KB

        • memory/2524-60-0x0000000007970000-0x0000000007A13000-memory.dmp

          Filesize

          652KB

        • memory/2524-61-0x00000000082D0000-0x000000000894A000-memory.dmp

          Filesize

          6.5MB

        • memory/4492-35-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-47-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-45-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-43-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-44-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-39-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-37-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-33-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-32-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-73-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-74-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-75-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-76-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-77-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-78-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-79-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-80-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/4492-81-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB