Overview

overview

10

Static

static

10

_92fc7f45d...33.exe

windows10-2004-x64

9

_92fc7f45d...33.exe

windows11-21h2-x64

9

Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    29/05/2026, 12:28

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General

  • Target
    _92fc7f45d4968df95bc082220680c9ebd6a381a9467f77493878af031454d633.exe
  • Size 146KB
  • Sample260529-pntcmscv4p
  • SHA256 92fc7f45d4968df95bc082220680c9ebd6a381a9467f77493878af031454d633
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (762) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    defense_evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\_92fc7f45d4968df95bc082220680c9ebd6a381a9467f77493878af031454d633.exe
    "C:\Users\Admin\AppData\Local\Temp\_92fc7f45d4968df95bc082220680c9ebd6a381a9467f77493878af031454d633.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5324
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:800
    • C:\ProgramData\2B71.tmp
      "C:\ProgramData\2B71.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\2B71.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3476
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:1312
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:464
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{CB016374-136E-450D-992C-464B02B3587A}.xps" 134245313529020000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:4420

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          PPPPPPPPPPP
          • Path C:\$Recycle.Bin\S-1-5-21-2043432456-1617298091-2772621413-1000\PPPPPPPPPPP
          • Size 129B
          • SHA256 c3b713f1142c15d4f471e13d5e977d7729b026d0aa5b86e3ac2136303162deb7
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          PKbXxJ1ka.README.txt
          • Path C:\PKbXxJ1ka.README.txt
          • Size 427B
          • SHA256 29a544b27712da1f10bbf00378e7ccfd0ba5fdef465e221512cb9733ed31ff60
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          2B71.tmp
          • Path C:\ProgramData\2B71.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
          • Path C:\Users\Admin\AppData\Local\Temp\CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
          • Size 146KB
          • SHA256 ca48609a5b228a4b60d7c700467e821e92ebb615500d6fb20385040fb57b8073
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Open Notebook.onetoc2
          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 bb7f8db1cc0679beea53b2bed425bf9d22afdc8d2aaabca0c56e6ffd11146cc7
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          DDDDDDDDDDD
          • Path F:\$RECYCLE.BIN\S-1-5-21-2043432456-1617298091-2772621413-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 c0a0601e728e671b7391a0446167c87ecb31697e7b975dd12c4b7bea6616ab8b
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/4420-3679-0x00007FF9505B0000-0x00007FF9505C0000-memory.dmp
          Download

          memory/4420-3713-0x00007FF94E220000-0x00007FF94E230000-memory.dmp
          Download

          memory/4420-3712-0x00007FF94E220000-0x00007FF94E230000-memory.dmp
          Download

          memory/4420-3677-0x00007FF9505B0000-0x00007FF9505C0000-memory.dmp
          Download

          memory/4420-3682-0x00007FF9505B0000-0x00007FF9505C0000-memory.dmp
          Download

          memory/4420-3681-0x00007FF9505B0000-0x00007FF9505C0000-memory.dmp
          Download

          memory/4420-3678-0x00007FF9505B0000-0x00007FF9505C0000-memory.dmp
          Download

          memory/5324-0-0x0000000000D50000-0x0000000000D60000-memory.dmp
          Download

          memory/5324-3665-0x0000000000D50000-0x0000000000D60000-memory.dmp
          Download

          memory/5324-1-0x0000000000D50000-0x0000000000D60000-memory.dmp
          Download

          memory/5324-3667-0x0000000000D50000-0x0000000000D60000-memory.dmp
          Download

          memory/5324-3666-0x0000000000D50000-0x0000000000D60000-memory.dmp
          Download

          memory/5324-2-0x0000000000D50000-0x0000000000D60000-memory.dmp
          Download