Overview

overview

10

Static

static

10

8f92ccba17...b1.exe

windows10-2004-x64

10

8f92ccba17...b1.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/06/2026, 21:07

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    8f92ccba17dcf055ce2f40b9a887d7ba2aaaa401f4df8e220fdeafc21d7be7b1.exe
  • Size 3.2MB
  • Sample260604-zyemcae16s
  • SHA256 8f92ccba17dcf055ce2f40b9a887d7ba2aaaa401f4df8e220fdeafc21d7be7b1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasionexecutionasyncratstormkittypersistenceratstealer

Malware Config

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Family: StormKitty

    StormKitty is an open source info stealer written in C#.

    stealerstormkitty
  • Async RAT payload 1 IoCs
    rat
  • StormKitty payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f92ccba17dcf055ce2f40b9a887d7ba2aaaa401f4df8e220fdeafc21d7be7b1.exe
    "C:\Users\Admin\AppData\Local\Temp\8f92ccba17dcf055ce2f40b9a887d7ba2aaaa401f4df8e220fdeafc21d7be7b1.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Wihnup" /tr '"C:\Users\Admin\AppData\Roaming\Wihnup.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4448
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Wihnup" /tr '"C:\Users\Admin\AppData\Roaming\Wihnup.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1332
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp338E.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3432
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4416
      • C:\Users\Admin\AppData\Roaming\Wihnup.exe
        "C:\Users\Admin\AppData\Roaming\Wihnup.exe"
        3⤵
        • Executes dropped EXE
        PID:2844
  • C:\Users\Admin\AppData\Roaming\Wihnup.exe
    "C:\Users\Admin\AppData\Roaming\Wihnup.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1004

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmp338E.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp338E.tmp.bat
        • Size 150B
        • SHA256 bd1aaf5af884d64268e17c0404c1650acba24a95259aa507d2227f12d9d28f38
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        Wihnup.exe
        • Path C:\Users\Admin\AppData\Roaming\Wihnup.exe
        • Size 3.2MB
        • SHA256 8f92ccba17dcf055ce2f40b9a887d7ba2aaaa401f4df8e220fdeafc21d7be7b1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/2776-0-0x00000000008D0000-0x0000000000C0C000-memory.dmp
        Download

        memory/2776-1-0x000000001C000000-0x000000001C010000-memory.dmp
        Download

        memory/2776-6-0x0000000001540000-0x00000000015FD000-memory.dmp
        Download