Analysis

  • max time kernel
    147s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-08-2024 14:34

General

  • Target

    20240816138f3e98b496c8f3b17cb1c418e56a2epoetratsnatch.exe

  • Size

    21.4MB

  • MD5

    138f3e98b496c8f3b17cb1c418e56a2e

  • SHA1

    058daaf656d32169786b4d0308c28eb4d3acb845

  • SHA256

    01fef4b2e1500e9ab7c52455175381c902315f1a052809cc2e487951ef758e3b

  • SHA512

    153c7539dbc2e1ee00e18bac6cda9594c2e8610f10887cb2f32026f74507f0c732c6354aa7853b4c305bc6396f03b5f48e924d993fb7463642b07dfe4c14eaf5

  • SSDEEP

    393216:ayiPxVx4VCkueNKGLRyWdwEFZ+6wU5tr8gFD398cI5ntyJ7IltQH:PiPXSwmdwEFZs8txB2Q7u

Malware Config

Extracted

Family

remcos

Version

4.9.4 Light

Botnet

RemoteHost

C2

192.168.0.195:2404

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

    Rmc-OOWFKS

  • 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.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Themida packer 38 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3464
      • C:\Users\Admin\AppData\Local\Temp\20240816138f3e98b496c8f3b17cb1c418e56a2epoetratsnatch.exe
        "C:\Users\Admin\AppData\Local\Temp\20240816138f3e98b496c8f3b17cb1c418e56a2epoetratsnatch.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of WriteProcessMemory
        PID:3900
      • C:\Windows\SysWOW64\grpconv.exe
        C:\Windows\SysWOW64\grpconv.exe
        2⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3524

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3524-0-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-1-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-2-0x0000000077624000-0x0000000077626000-memory.dmp

      Filesize

      8KB

    • memory/3524-3-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-8-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-11-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-13-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-12-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-14-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-10-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-9-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-5-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-4-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-7-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-6-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-16-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-15-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-19-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-20-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-22-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-21-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-23-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-18-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-17-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-24-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-25-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-26-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-27-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-28-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-29-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-30-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-31-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-32-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-33-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-34-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-35-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-36-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-37-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB

    • memory/3524-38-0x0000000000600000-0x0000000000D2F000-memory.dmp

      Filesize

      7.2MB