Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2024 01:15

General

  • Target

    39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129.exe

  • Size

    1.3MB

  • MD5

    5c44a72a49fe4fbc94f1c1aa8cbf0ab6

  • SHA1

    d0d0903f73b4aa11ee580fb6fd8d80775e6e88de

  • SHA256

    39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129

  • SHA512

    d92503e2ebbaa4e8728098cf6d0079de711a4f92663ad9db8583d848721818e4ecf3790a65253a0cd850c23eed8a46f98049a11f77b9f106344e501d124fbb97

  • SSDEEP

    24576:ctcKivRdWnSyEHyfE75BP/+mgWdm/bTLLK6:LKmXWSy6r2mgxv

Malware Config

Extracted

Family

remcos

Botnet

SLAVES

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-J3MJAP

  • 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
  • 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 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129.exe
    "C:\Users\Admin\AppData\Local\Temp\39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 18 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Videoss" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Images.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4944
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 18
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:736
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Videoss" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Images.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1580
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 24 > nul && copy "C:\Users\Admin\AppData\Local\Temp\39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129.exe" "C:\Users\Admin\AppData\Roaming\Images.exe" && ping 127.0.0.1 -n 24 > nul && "C:\Users\Admin\AppData\Roaming\Images.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2748
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 24
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:4776
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 24
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2844
      • C:\Users\Admin\AppData\Roaming\Images.exe
        "C:\Users\Admin\AppData\Roaming\Images.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:2112
        • 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:4644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Images.exe

    Filesize

    1.3MB

    MD5

    5c44a72a49fe4fbc94f1c1aa8cbf0ab6

    SHA1

    d0d0903f73b4aa11ee580fb6fd8d80775e6e88de

    SHA256

    39fe045b17ab2fcdb512758a431845409c29ca9341090ac81878658423c39129

    SHA512

    d92503e2ebbaa4e8728098cf6d0079de711a4f92663ad9db8583d848721818e4ecf3790a65253a0cd850c23eed8a46f98049a11f77b9f106344e501d124fbb97

  • memory/1060-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

    Filesize

    4KB

  • memory/1060-1-0x00000000000C0000-0x0000000000206000-memory.dmp

    Filesize

    1.3MB

  • memory/1060-2-0x00000000055D0000-0x000000000566C000-memory.dmp

    Filesize

    624KB

  • memory/1060-3-0x0000000005C20000-0x00000000061C4000-memory.dmp

    Filesize

    5.6MB

  • memory/1060-4-0x0000000005670000-0x0000000005702000-memory.dmp

    Filesize

    584KB

  • memory/1060-5-0x00000000054F0000-0x0000000005534000-memory.dmp

    Filesize

    272KB

  • memory/1060-6-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/1060-7-0x00000000057C0000-0x00000000057CA000-memory.dmp

    Filesize

    40KB

  • memory/1060-8-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

    Filesize

    4KB

  • memory/1060-9-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/1060-11-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-17-0x0000000000F90000-0x00000000010D6000-memory.dmp

    Filesize

    1.3MB

  • memory/2112-18-0x0000000074FB0000-0x0000000075760000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-19-0x0000000074FB0000-0x0000000075760000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-20-0x0000000074FB0000-0x0000000075760000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-21-0x0000000007DC0000-0x0000000007DDA000-memory.dmp

    Filesize

    104KB

  • memory/2112-22-0x000000000A430000-0x000000000A436000-memory.dmp

    Filesize

    24KB

  • memory/2112-26-0x0000000074FB0000-0x0000000075760000-memory.dmp

    Filesize

    7.7MB

  • memory/4644-23-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-25-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-28-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-30-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-31-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-32-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-34-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-35-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-44-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-45-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-47-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-50-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-51-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-52-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-53-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-54-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-55-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-56-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-57-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-58-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-59-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-60-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-61-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-62-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-63-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-64-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-65-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-66-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-67-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-68-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-69-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4644-70-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB