Analysis

  • max time kernel
    150s
  • 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
    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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe
    "C:\Users\Admin\AppData\Local\Temp\f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4528
    • 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:2200
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ppUSXdJgAIFILG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9E24.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3468
    • C:\Users\Admin\AppData\Local\Temp\f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe
      "C:\Users\Admin\AppData\Local\Temp\f6bf4471924e9dba31be59f8b96df06d02c69416c4c0518148507ff5b8f7cd48.exe"
      2⤵
        PID:2944

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_whafgwn2.ej1.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp9E24.tmp

      Filesize

      1KB

      MD5

      22336515782c54107af57d050566f8a2

      SHA1

      bcf9f0a1866be3a6476e689090dd0e0c8ac78250

      SHA256

      d122629189476e01acef90f9c22271206fb8f482765471815669ba6239381e68

      SHA512

      752bf021e196d434ff36d3d1409c369f7f0b9a542033c10cfc8525f26e58dd08777bbc57a1da2eceba46d82d3aa866a1883c6055c7d215df7d09940126c53def

    • memory/2200-20-0x0000000005870000-0x00000000058D6000-memory.dmp

      Filesize

      408KB

    • memory/2200-19-0x0000000005790000-0x00000000057F6000-memory.dmp

      Filesize

      408KB

    • memory/2200-71-0x0000000074450000-0x0000000074C00000-memory.dmp

      Filesize

      7.7MB

    • memory/2200-68-0x00000000074F0000-0x00000000074F8000-memory.dmp

      Filesize

      32KB

    • memory/2200-67-0x0000000007510000-0x000000000752A000-memory.dmp

      Filesize

      104KB

    • memory/2200-66-0x0000000007410000-0x0000000007424000-memory.dmp

      Filesize

      80KB

    • memory/2200-65-0x0000000007400000-0x000000000740E000-memory.dmp

      Filesize

      56KB

    • memory/2200-64-0x00000000073D0000-0x00000000073E1000-memory.dmp

      Filesize

      68KB

    • memory/2200-14-0x0000000002590000-0x00000000025C6000-memory.dmp

      Filesize

      216KB

    • memory/2200-15-0x00000000050F0000-0x0000000005718000-memory.dmp

      Filesize

      6.2MB

    • memory/2200-16-0x0000000074450000-0x0000000074C00000-memory.dmp

      Filesize

      7.7MB

    • memory/2200-63-0x0000000007450000-0x00000000074E6000-memory.dmp

      Filesize

      600KB

    • memory/2200-62-0x0000000007240000-0x000000000724A000-memory.dmp

      Filesize

      40KB

    • memory/2200-61-0x00000000071D0000-0x00000000071EA000-memory.dmp

      Filesize

      104KB

    • memory/2200-29-0x00000000058E0000-0x0000000005C34000-memory.dmp

      Filesize

      3.3MB

    • memory/2200-60-0x0000000007820000-0x0000000007E9A000-memory.dmp

      Filesize

      6.5MB

    • memory/2200-57-0x0000000007080000-0x0000000007123000-memory.dmp

      Filesize

      652KB

    • memory/2200-28-0x0000000074450000-0x0000000074C00000-memory.dmp

      Filesize

      7.7MB

    • memory/2200-56-0x0000000006E20000-0x0000000006E3E000-memory.dmp

      Filesize

      120KB

    • memory/2200-46-0x0000000074CD0000-0x0000000074D1C000-memory.dmp

      Filesize

      304KB

    • memory/2200-40-0x0000000005E90000-0x0000000005EAE000-memory.dmp

      Filesize

      120KB

    • memory/2200-45-0x0000000006E40000-0x0000000006E72000-memory.dmp

      Filesize

      200KB

    • memory/2200-21-0x0000000074450000-0x0000000074C00000-memory.dmp

      Filesize

      7.7MB

    • memory/2200-41-0x0000000005F70000-0x0000000005FBC000-memory.dmp

      Filesize

      304KB

    • memory/2200-18-0x0000000004FF0000-0x0000000005012000-memory.dmp

      Filesize

      136KB

    • memory/2944-24-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-72-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-78-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-75-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-44-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-22-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-26-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-27-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-80-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-79-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-43-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-23-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-77-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-76-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-42-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-74-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2944-73-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/4528-5-0x00000000053E0000-0x00000000053EA000-memory.dmp

      Filesize

      40KB

    • memory/4528-4-0x0000000074450000-0x0000000074C00000-memory.dmp

      Filesize

      7.7MB

    • memory/4528-0-0x000000007445E000-0x000000007445F000-memory.dmp

      Filesize

      4KB

    • memory/4528-6-0x00000000056D0000-0x00000000056E0000-memory.dmp

      Filesize

      64KB

    • memory/4528-7-0x0000000005700000-0x000000000570E000-memory.dmp

      Filesize

      56KB

    • memory/4528-8-0x0000000006760000-0x000000000681E000-memory.dmp

      Filesize

      760KB

    • memory/4528-9-0x0000000006960000-0x00000000069FC000-memory.dmp

      Filesize

      624KB

    • memory/4528-2-0x00000000059F0000-0x0000000005F94000-memory.dmp

      Filesize

      5.6MB

    • memory/4528-3-0x0000000005440000-0x00000000054D2000-memory.dmp

      Filesize

      584KB

    • memory/4528-30-0x0000000074450000-0x0000000074C00000-memory.dmp

      Filesize

      7.7MB

    • memory/4528-1-0x00000000008E0000-0x00000000009E0000-memory.dmp

      Filesize

      1024KB