Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    22/05/2026, 11:32

General

  • Target
    tmpxnk8u207.exe
  • Size 237KB
  • Sample260522-nnhepsct3t
  • SHA256 88411957bd451e47c79ccb45655e419b62bbcb997ab0af512fa8709cf2549ed6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    PID:3248
    • C:\Users\Admin\AppData\Local\Temp\tmpxnk8u207.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpxnk8u207.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\winver.exe
        winver
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1500
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1500 -s 300
          4⤵
          • Program crash
          PID:1820
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 860
        3⤵
        • Program crash
        PID:1976
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
    1⤵
    • Modifies data under HKEY_USERS
    PID:3680
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1500 -ip 1500
    1⤵
      PID:4856
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4512 -ip 4512
      1⤵
        PID:1668

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            memory/3248-18-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-26-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-31-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-30-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-29-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-7-0x0000000002C30000-0x0000000002C36000-memory.dmp

            memory/3248-8-0x0000000002C30000-0x0000000002C36000-memory.dmp

            memory/3248-19-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-12-0x0000000002C40000-0x0000000002C46000-memory.dmp

            memory/3248-24-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-16-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-17-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-25-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-28-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-27-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-21-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-22-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-23-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/3248-20-0x0000000002C00000-0x0000000002C10000-memory.dmp

            memory/4512-1-0x0000000004A60000-0x00000000050B8000-memory.dmp

            memory/4512-2-0x0000000003D40000-0x0000000003D41000-memory.dmp

            memory/4512-15-0x0000000004A60000-0x00000000050B8000-memory.dmp

            memory/4512-9-0x0000000000400000-0x000000000043F000-memory.dmp

            memory/4512-5-0x0000000003D40000-0x0000000003D41000-memory.dmp

            memory/4512-4-0x0000000003D40000-0x0000000003D41000-memory.dmp

            memory/4512-3-0x0000000003D40000-0x0000000003D41000-memory.dmp