Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2024 08:51

General

  • Target

    QUOTATION #46789RFQ_SUPLMS_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe

  • Size

    1.3MB

  • MD5

    b80d47598764ee94143290bb57428724

  • SHA1

    bc2fe98a03d2196d02038c5c016f6e7a71529e9f

  • SHA256

    ae7dd99d6214b35fe4d225dd782ca41714ffd0b637d8db40fbb887e00807d288

  • SHA512

    5c47b98b18eb4bc00149f3189e18fb6f9d83e92821bc38d1def0f1ceb7ba55de0d8306280806b72d8880c6e150af0ce662229739b5cfcec799e35ab26633f7f2

  • SSDEEP

    24576:FX+izx1yUYSr7tqMO/7KgyfE75BP/+mgWdm/bTFcLKV:9Jzx9r7g1r2mgxvF

Malware Config

Extracted

Family

remcos

Botnet

HOST

C2

windowslavesclient.duckdns.org:1604

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-57SZW9

  • 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.

  • Remcos family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLMS_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLMS_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2404
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 15 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "vsysems" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Photoes.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2636
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 15
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1704
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "vsysems" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Photoes.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2736
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 29 > nul && copy "C:\Users\Admin\AppData\Local\Temp\QUOTATION #46789RFQ_SUPLMS_NOV24_SALEH_CONSTRUCTIONS_LLC_PDF.exe" "C:\Users\Admin\AppData\Roaming\Photoes.exe" && ping 127.0.0.1 -n 29 > nul && "C:\Users\Admin\AppData\Roaming\Photoes.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2816
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 29
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2828
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 29
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2360
      • C:\Users\Admin\AppData\Roaming\Photoes.exe
        "C:\Users\Admin\AppData\Roaming\Photoes.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3024
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
          4⤵
            PID:1140
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2020

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Roaming\Photoes.exe

      Filesize

      1.3MB

      MD5

      b80d47598764ee94143290bb57428724

      SHA1

      bc2fe98a03d2196d02038c5c016f6e7a71529e9f

      SHA256

      ae7dd99d6214b35fe4d225dd782ca41714ffd0b637d8db40fbb887e00807d288

      SHA512

      5c47b98b18eb4bc00149f3189e18fb6f9d83e92821bc38d1def0f1ceb7ba55de0d8306280806b72d8880c6e150af0ce662229739b5cfcec799e35ab26633f7f2

    • memory/1140-28-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/1140-21-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/1140-22-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/1140-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1140-30-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/1140-24-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/1140-26-0x0000000000080000-0x00000000000FF000-memory.dmp

      Filesize

      508KB

    • memory/2020-58-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-63-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-80-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-79-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-78-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-77-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-46-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-47-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-48-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-49-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-50-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-51-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-52-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-53-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-54-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-55-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-56-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-57-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-76-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-59-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-60-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-61-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-62-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-75-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-64-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-65-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-66-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-67-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-68-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-69-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-70-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-71-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-72-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-73-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2020-74-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2404-4-0x000000007499E000-0x000000007499F000-memory.dmp

      Filesize

      4KB

    • memory/2404-0-0x000000007499E000-0x000000007499F000-memory.dmp

      Filesize

      4KB

    • memory/2404-1-0x0000000001380000-0x00000000014DC000-memory.dmp

      Filesize

      1.4MB

    • memory/2404-2-0x0000000074990000-0x000000007507E000-memory.dmp

      Filesize

      6.9MB

    • memory/2404-3-0x0000000000AD0000-0x0000000000B14000-memory.dmp

      Filesize

      272KB

    • memory/2404-5-0x0000000074990000-0x000000007507E000-memory.dmp

      Filesize

      6.9MB

    • memory/2404-6-0x0000000074990000-0x000000007507E000-memory.dmp

      Filesize

      6.9MB

    • memory/3024-17-0x0000000000090000-0x00000000001EC000-memory.dmp

      Filesize

      1.4MB

    • memory/3024-18-0x0000000000730000-0x000000000074A000-memory.dmp

      Filesize

      104KB

    • memory/3024-19-0x0000000000790000-0x0000000000796000-memory.dmp

      Filesize

      24KB