Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-05-2024 09:26

General

  • Target

    Customer Advisory - HS Code - Maersk Shipping/Customer Advisory - HS Code - Maersk Shipping.ppt.exe

  • Size

    947KB

  • MD5

    23f0cf81aa7d1c7a4a23e95e5a2595e4

  • SHA1

    0e477abeb86ae366d906a247e8f30b4ccdc02eef

  • SHA256

    a135b28345728e0533bf4bdad442dfee04d2e6f67e9b04ebb088919ef18d6601

  • SHA512

    208db7a72859d78a9b9ee235f78ae55b3fbc05fec9c475c5aaf66ffd50e4d9c16d58620473a21ffd0c19874b4906f9c0b7b1e77b6bd22f9cf87789ad3d4ab0e9

  • SSDEEP

    24576:/YTyQ+R2J+E34ppWnRM/ggnlWWf5tlD7k:/pbkJqbMWBtN

Malware Config

Extracted

Family

remcos

Botnet

FmGlobal

C2

royaldachpharmacy.duckdns.org:6395

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    services.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-GRT17F

  • 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.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 5 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 4 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Customer Advisory - HS Code - Maersk Shipping\Customer Advisory - HS Code - Maersk Shipping.ppt.exe
    "C:\Users\Admin\AppData\Local\Temp\Customer Advisory - HS Code - Maersk Shipping\Customer Advisory - HS Code - Maersk Shipping.ppt.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Windows\SysWOW64\extrac32.exe
      C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\Customer Advisory - HS Code - Maersk Shipping\Customer Advisory - HS Code - Maersk Shipping.ppt.exe C:\\Users\\Public\\Libraries\\Jqzdsttb.PIF
      2⤵
        PID:1920
      • C:\ProgramData\Remcos\services.exe
        "C:\ProgramData\Remcos\services.exe"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1500
        • C:\ProgramData\Remcos\services.exe
          C:\ProgramData\Remcos\services.exe /stext "C:\Users\Admin\AppData\Local\Temp\iowdgy"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:856
        • C:\ProgramData\Remcos\services.exe
          C:\ProgramData\Remcos\services.exe /stext "C:\Users\Admin\AppData\Local\Temp\tibnhjkkl"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook accounts
          PID:4132
        • C:\ProgramData\Remcos\services.exe
          C:\ProgramData\Remcos\services.exe /stext "C:\Users\Admin\AppData\Local\Temp\vcogibvehfab"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4048

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Remcos\logs.dat

      Filesize

      144B

      MD5

      4079493eef9fe9b1d68f628c68c2be28

      SHA1

      80e6411328499ffdce1e8d23d65d23493487bb44

      SHA256

      51bb02853f63b93560dab2b9814432acf5fc42a29a585b80b270f62dea973126

      SHA512

      f3484b488b2164b75f7fe35c737a7a3e4e8e23dfd6987a466d5e796f68b8afd3c1aafb03f119a844e6ba1de3c264c42f27995071f90be26bc2277ffbab23ad5d

    • C:\ProgramData\Remcos\services.exe

      Filesize

      947KB

      MD5

      23f0cf81aa7d1c7a4a23e95e5a2595e4

      SHA1

      0e477abeb86ae366d906a247e8f30b4ccdc02eef

      SHA256

      a135b28345728e0533bf4bdad442dfee04d2e6f67e9b04ebb088919ef18d6601

      SHA512

      208db7a72859d78a9b9ee235f78ae55b3fbc05fec9c475c5aaf66ffd50e4d9c16d58620473a21ffd0c19874b4906f9c0b7b1e77b6bd22f9cf87789ad3d4ab0e9

    • C:\Users\Admin\AppData\Local\Temp\iowdgy

      Filesize

      4KB

      MD5

      788d7419b32411807cc6753cbbccecbe

      SHA1

      761b99a1e5bc168f525181d78cff3f6ed82daa14

      SHA256

      76150e857b36f1f070422d2ad4df17f87454466348e4bfc158b028977378140b

      SHA512

      3003f104b0b07870015ff4e9e0d254c2e537d4c68ef664a772d7018827b0ccbeb5481a2ce587b88e6ab1d71d6ce523a620c11c00c676857d5fd5ab949fa617b4

    • memory/856-31-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/856-52-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/856-35-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/856-28-0x0000000000400000-0x0000000000478000-memory.dmp

      Filesize

      480KB

    • memory/1500-55-0x0000000046060000-0x0000000046079000-memory.dmp

      Filesize

      100KB

    • memory/1500-59-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-21-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-22-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-23-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-24-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-25-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-19-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-18-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-85-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-84-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-74-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-73-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-63-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-27-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-62-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-20-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-16-0x0000000027D00000-0x0000000028D00000-memory.dmp

      Filesize

      16.0MB

    • memory/1500-13-0x0000000002350000-0x0000000002351000-memory.dmp

      Filesize

      4KB

    • memory/1500-57-0x0000000046060000-0x0000000046079000-memory.dmp

      Filesize

      100KB

    • memory/1500-14-0x0000000000400000-0x00000000004F5000-memory.dmp

      Filesize

      980KB

    • memory/1500-58-0x0000000046060000-0x0000000046079000-memory.dmp

      Filesize

      100KB

    • memory/1644-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

      Filesize

      4KB

    • memory/1644-1-0x0000000000400000-0x00000000004F5000-memory.dmp

      Filesize

      980KB

    • memory/4048-42-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/4048-45-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/4048-47-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/4048-50-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/4132-32-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4132-34-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4132-36-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4132-37-0x0000000000470000-0x0000000000539000-memory.dmp

      Filesize

      804KB

    • memory/4132-38-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB