Analysis

  • max time kernel
    149s
  • max time network
    116s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    18/05/2026, 22:29

General

  • Target
    tmpx8umcgiv.dll
  • Size 12.3MB
  • Sample260518-2egcyadw21
  • SHA256 d23e806f40d871f50534379a91572d06d55b946cc789cebc38f63d9a7b43f631
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10

Malware Config

Signatures

  • Badlisted process makes network request 5 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\tmpx8umcgiv.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2888
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\tmpx8umcgiv.dll,#1
      2⤵
      • Badlisted process makes network request
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5340
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionExtension "exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2384
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5340 -s 1020
        3⤵
        • Program crash
        PID:4004
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5340 -ip 5340
    1⤵
      PID:3404

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          __PSScriptPolicyTest_sdl5ur0a.t3w.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sdl5ur0a.t3w.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          memory/2384-17-0x000000006FD00000-0x000000006FD4C000-memory.dmp

          memory/2384-12-0x00000000062E0000-0x0000000006637000-memory.dmp

          memory/2384-3-0x0000000006060000-0x0000000006082000-memory.dmp

          memory/2384-4-0x0000000006200000-0x0000000006266000-memory.dmp

          memory/2384-5-0x0000000006270000-0x00000000062D6000-memory.dmp

          memory/2384-1-0x0000000003300000-0x0000000003336000-memory.dmp

          memory/2384-0-0x00000000032B0000-0x00000000032C0000-memory.dmp

          memory/2384-13-0x00000000067E0000-0x00000000067FE000-memory.dmp

          memory/2384-14-0x0000000006820000-0x000000000686C000-memory.dmp

          memory/2384-15-0x000000007FBD0000-0x000000007FBE0000-memory.dmp

          memory/2384-2-0x0000000005A30000-0x000000000605A000-memory.dmp

          memory/2384-16-0x0000000006DB0000-0x0000000006DE4000-memory.dmp

          memory/2384-28-0x0000000007B30000-0x0000000007B4A000-memory.dmp

          memory/2384-25-0x0000000006DF0000-0x0000000006E0E000-memory.dmp

          memory/2384-26-0x0000000007880000-0x0000000007924000-memory.dmp

          memory/2384-27-0x00000000081B0000-0x000000000882A000-memory.dmp

          memory/2384-24-0x00000000032B0000-0x00000000032C0000-memory.dmp

          memory/2384-29-0x0000000007BA0000-0x0000000007BAA000-memory.dmp

          memory/2384-30-0x0000000007DA0000-0x0000000007E36000-memory.dmp

          memory/2384-31-0x0000000007D30000-0x0000000007D41000-memory.dmp

          memory/2384-32-0x0000000007D60000-0x0000000007D6E000-memory.dmp

          memory/2384-33-0x0000000007D70000-0x0000000007D85000-memory.dmp

          memory/2384-34-0x0000000007E70000-0x0000000007E8A000-memory.dmp

          memory/2384-35-0x0000000007E60000-0x0000000007E68000-memory.dmp