Overview

overview

10

Static

static

10

05a3f89006...b2.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    16/09/2026, 18:06

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General

  • Target
    05a3f890065979012a2d381698713756972aedeffad87eff8d9006acfe6f76b2.exe
  • Size 630KB
  • Sample260916-wp7d8aca23
  • SHA256 05a3f890065979012a2d381698713756972aedeffad87eff8d9006acfe6f76b2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverystihatpersistenceprivilege_escalationspywareworm

Malware Config

Signatures

  • Family: Stihat

    Stihat is a worm written in Delphi.

    wormstihat
  • Detects Stihat payload 2 IoCs
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Creates a file in the Startup directory 1 TTPs 2 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    persistenceprivilege_escalation
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

    discovery
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
    adwarespyware
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05a3f890065979012a2d381698713756972aedeffad87eff8d9006acfe6f76b2.exe
    "C:\Users\Admin\AppData\Local\Temp\05a3f890065979012a2d381698713756972aedeffad87eff8d9006acfe6f76b2.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Creates a file in the Startup directory
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:2624
  • C:\Windows\explorer.exe
    Explorer.exe HelpMe.exe
    1⤵
      PID:864
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:1428

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          desktop.ini.exe
          • Path C:\$Recycle.Bin\S-1-5-21-1846164713-4096795028-774071693-1000\desktop.ini.exe
          • Size 631KB
          • SHA256 6da5eac36a678a495ac89524699310b1d44a8ffa679d7399a0221f4ec07f7cd6
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          iexplore.exe.exe
          • Path C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe
          • Size 1.4MB
          • SHA256 8c682c01f338ee729742f27772f1780a9afc4ddb50813ad056564a325d0d836e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          AUTORUN.INF
          • Path F:\AUTORUN.INF
          • Size 145B
          • SHA256 cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/2624-0-0x0000000000400000-0x000000000048E000-memory.dmp
          Download

          memory/2624-1-0x0000000000710000-0x0000000000711000-memory.dmp
          Download

          memory/2624-2-0x0000000000460000-0x0000000000461000-memory.dmp
          Download

          memory/2624-53-0x0000000000400000-0x000000000048E000-memory.dmp
          Download

          memory/2624-54-0x0000000000710000-0x0000000000711000-memory.dmp
          Download