Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 11:31

General

  • Target
    tmprmr8scyb.exe
  • Size 225KB
  • Sample260522-nmpsdscs91
  • SHA256 4e218ccb10f535539a793c0a4a13a67ba367b4aeaba88b2ca915915360b944b3
  • 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 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:3200
    • C:\Users\Admin\AppData\Local\Temp\tmprmr8scyb.exe
      "C:\Users\Admin\AppData\Local\Temp\tmprmr8scyb.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Windows\SysWOW64\winver.exe
        winver
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 332
          4⤵
          • Program crash
          PID:4064
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 748
        3⤵
        • Program crash
        PID:4000
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
    1⤵
    • Modifies data under HKEY_USERS
    PID:3272
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2104 -ip 2104
    1⤵
      PID:2556
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3372 -ip 3372
      1⤵
        PID:4320

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            memory/3200-4-0x0000000002F50000-0x0000000002F56000-memory.dmp

            memory/3200-5-0x0000000002F50000-0x0000000002F56000-memory.dmp

            memory/3200-9-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

            memory/3372-1-0x0000000004CC0000-0x0000000005318000-memory.dmp

            memory/3372-2-0x0000000004010000-0x0000000004011000-memory.dmp

            memory/3372-6-0x0000000000400000-0x000000000043C000-memory.dmp

            memory/3372-12-0x0000000004CC0000-0x0000000005318000-memory.dmp