Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    01/09/2026, 06:16

General

  • Target
    192.exe
  • Size 5.7MB
  • Sample260901-g1e2satcqa
  • SHA256 21bfcedfb79ec8427ad3d766b66997983a2910d05164773159263b52a5cd6317
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: ValleyRat

    ValleyRat stage2 is a backdoor written in C++.

  • Detects ValleyRAT payload 6 IoCs
  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Downloads MZ/PE file 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\192.exe
    "C:\Users\Admin\AppData\Local\Temp\192.exe"
    1⤵
    • Downloads MZ/PE file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Roaming\Microsoft\Vault\aom.dll Ava
      2⤵
      • Badlisted process makes network request
      • Loads dropped DLL
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4376

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        aom.dat

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Vault\aom.dat
        • Size 306KB
        • SHA256 484a9a4a6be2c25b6b8bc26c5b2e048963e405771c42d7dcb5e3cd5932810c86
        • MD5 SHA1 SHA512 SSDEEP TLSH

        aom.dll

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Vault\aom.dll
        • Size 149KB
        • SHA256 6516223db6338b7a702d3a2dd961628c53e0de37dee401701ca612335c15ee75
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4376-6-0x0000024D89150000-0x0000024D8919D000-memory.dmp

        memory/4376-13-0x0000000180000000-0x0000000180055000-memory.dmp

        memory/4376-7-0x0000000180000000-0x0000000180055000-memory.dmp

        memory/4376-14-0x0000000180000000-0x0000000180055000-memory.dmp

        memory/4376-15-0x0000000180000000-0x0000000180055000-memory.dmp

        memory/4376-16-0x0000000180000000-0x0000000180055000-memory.dmp

        memory/4376-17-0x00007FF96D550000-0x00007FF96D580000-memory.dmp