Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    26/10/2026, 19:40

General

  • Target
    2026-10-25_93ae73577302470dd0a67e764a6dc38a_icedid_luca-stealer_njrat_stealc.exe
  • Size 1.5MB
  • Sample261026-ydpfdav13p
  • SHA256 3d30d8d03c6999f38d55f1796e815ff1f8dc001822328290291a1edd7d632e2b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • valleyrat_s2

Version
  • 1.0

C2
  • 202.61.157.33:21357

Signatures

  • Family: ValleyRat

    ValleyRat stage2 is a backdoor written in C++.

  • Detects ValleyRAT payload 11 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • UPX dump on OEP (original entry point) 17 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 44 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 TTPs 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • UPX packed file 17 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-25_93ae73577302470dd0a67e764a6dc38a_icedid_luca-stealer_njrat_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-25_93ae73577302470dd0a67e764a6dc38a_icedid_luca-stealer_njrat_stealc.exe"
    1⤵
    • UAC bypass
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4876
    • C:\ProgramData\MicroPoint\WinCombo.exe
      "C:\ProgramData\MicroPoint\WinCombo.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2560
  • C:\ProgramData\MicroPoint\WinCombo.exe
    "C:\ProgramData\MicroPoint\WinCombo.exe"
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4348

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        WinCombo.exe

        • Path C:\ProgramData\MicroPoint\WinCombo.exe
        • Size 1.5MB
        • SHA256 3d30d8d03c6999f38d55f1796e815ff1f8dc001822328290291a1edd7d632e2b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2560-37-0x0000023E8D8B0000-0x0000023E8D900000-memory.dmp

        memory/2560-4-0x0000023E8CE80000-0x0000023E8CEA3000-memory.dmp

        memory/2560-7-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/2560-5-0x0000023E8CEB0000-0x0000023E8CEB1000-memory.dmp

        memory/2560-30-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/2560-49-0x0000023E8D8B0000-0x0000023E8D900000-memory.dmp

        memory/2560-6-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/2560-36-0x0000023E8D860000-0x0000023E8D8AA000-memory.dmp

        memory/2560-31-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/2560-35-0x0000023E8D8B0000-0x0000023E8D900000-memory.dmp

        memory/2560-38-0x0000023E8D8B0000-0x0000023E8D900000-memory.dmp

        memory/2560-46-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/2560-45-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/2560-34-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/2560-39-0x0000023E8D8B0000-0x0000023E8D900000-memory.dmp

        memory/4348-26-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/4348-41-0x000001EDC58A0000-0x000001EDC58F0000-memory.dmp

        memory/4348-40-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/4348-42-0x000001EDC58A0000-0x000001EDC58F0000-memory.dmp

        memory/4348-44-0x000001EDC58A0000-0x000001EDC58F0000-memory.dmp

        memory/4348-43-0x000001EDC58A0000-0x000001EDC58F0000-memory.dmp

        memory/4348-47-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/4348-24-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/4348-48-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/4348-33-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/4348-50-0x000001EDC58A0000-0x000001EDC58F0000-memory.dmp

        memory/4348-32-0x0000000140000000-0x000000014002A000-memory.dmp

        memory/4876-21-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-29-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-27-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-9-0x000002795E5B0000-0x000002795E5CF000-memory.dmp

        memory/4876-14-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-10-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-11-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-12-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-13-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-15-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-16-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-17-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-18-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-20-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-22-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-25-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-23-0x0000000140000000-0x0000000140049000-memory.dmp

        memory/4876-19-0x0000000140000000-0x0000000140049000-memory.dmp