Analysis

  • user interaction
    yes
  • max time kernel
    89s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 02:37

General

  • Target
    final.dll
  • Size 183KB
  • Sample261102-c4ccvadh95
  • SHA256 44a0e506ace77d147961f568d910130f1e024c1939c0636f1fe57743a81c401c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • valleyrat_s2

Version
  • 1.0

C2
  • 47.76.170.135:443

Signatures

  • Family: ValleyRat

    ValleyRat stage2 is a backdoor written in C++.

  • Badlisted process makes network request 6 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 44 IoCs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\final.dll,#1
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -Command "Add-MpPreference -ExclusionPath 'C:\ProgramData\EdgeUpdate' -Force -ErrorAction SilentlyContinue"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of AdjustPrivilegeToken
      PID:4424
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -Command "Add-MpPreference -ExclusionProcess 'explorer.exe' -Force -ErrorAction SilentlyContinue"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of AdjustPrivilegeToken
      PID:2684
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -Command "Add-MpPreference -ExclusionProcess 'Thunder.exe' -Force -ErrorAction SilentlyContinue"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of AdjustPrivilegeToken
      PID:5796
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -Command "Add-MpPreference -ExclusionProcess 'RuntimeBroker.exe' -Force -ErrorAction SilentlyContinue"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:2788
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -Command "Add-MpPreference -ExclusionProcess 'VSPMsg.dll' -Force -ErrorAction SilentlyContinue"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5676
  • C:\ProgramData\EdgeUpdate\2lil8zdn\jsvtp7sm.exe
    C:\ProgramData\EdgeUpdate\2lil8zdn\jsvtp7sm.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious behavior: MapViewOfSection
    PID:2596

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        config.log

        • Path C:\ProgramData\EdgeUpdate\2lil8zdn\config.log
        • Size 185KB
        • SHA256 f745086049fef5d3912f5c15ad94fa96214e81eee02f4f748a718a03bb46ba71
        • MD5 SHA1 SHA512 SSDEEP TLSH

        jsvtp7sm.exe

        • Path C:\ProgramData\EdgeUpdate\2lil8zdn\jsvtp7sm.exe
        • Size 367KB
        • SHA256 a150614db8802e3700db945c42f7e9c2fb03cfdcbea7854b0b072a2e35a11b77
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 435471b87a1a97b0e29f7d5dd0878e63031511f063629d7e750852c068e7c4f5
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 c19e175d8d47cc28a9c8aa8d9e51ddffa8af5189fdfe909785b4a4db6dd40c89
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 168454fbd10bd6c316787e0630eccd8473426abab36526d9269a91f4bb86727e
        • MD5 SHA1 SHA512 TLSH

        __PSScriptPolicyTest_civ5yxfe.2ia.psm1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_civ5yxfe.2ia.psm1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        memory/2552-9-0x0000000180000000-0x0000000180051000-memory.dmp

        memory/2552-21-0x000001830C0B0000-0x000001830C184000-memory.dmp

        memory/2552-18-0x0000000180000000-0x0000000180051000-memory.dmp

        memory/2552-17-0x00007FFEE5770000-0x00007FFEE57C6000-memory.dmp

        memory/2552-0-0x000001830A450000-0x000001830A49B000-memory.dmp

        memory/2552-2-0x0000000180000000-0x0000000180051000-memory.dmp

        memory/2552-1-0x000001830A450000-0x000001830A49B000-memory.dmp

        memory/4424-55-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-61-0x00000198EF590000-0x00000198EF5AE000-memory.dmp

        memory/4424-50-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-51-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-52-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-53-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-54-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-48-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-101-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-47-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-41-0x00007FFED323F000-0x00007FFED3240000-memory.dmp

        memory/4424-63-0x00000198EF5B0000-0x00000198EF662000-memory.dmp

        memory/4424-64-0x00000198EF370000-0x00000198EF37A000-memory.dmp

        memory/4424-49-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-45-0x00000198EF2C0000-0x00000198EF2E2000-memory.dmp

        memory/4424-66-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-46-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-72-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4424-42-0x00007FFED30B0000-0x00007FFED3A54000-memory.dmp

        memory/4500-62-0x00000000030E0000-0x00000000030E1000-memory.dmp

        memory/4500-99-0x0000000004F20000-0x0000000004F56000-memory.dmp

        memory/4500-100-0x0000000004F20000-0x0000000004F56000-memory.dmp

        memory/4500-58-0x0000000004F20000-0x0000000004F56000-memory.dmp

        memory/4500-103-0x0000000004F20000-0x0000000004F56000-memory.dmp

        memory/4500-112-0x0000000004F20000-0x0000000004F56000-memory.dmp

        memory/4500-118-0x0000000004F20000-0x0000000004F56000-memory.dmp

        memory/4500-119-0x0000000004F20000-0x0000000004F56000-memory.dmp