Overview

overview

10

Static

static

10

b3951980b0...e1.exe

windows10-2004-x64

10

b3951980b0...e1.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    8s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 01:27

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General

  • Target
    b3951980b0017d9e90b9b709a7a6af848adf7f273581bdfeb5110a8cfe5f2ee1.exe
  • Size 133KB
  • Sample260703-bvf41aew3l
  • SHA256 b3951980b0017d9e90b9b709a7a6af848adf7f273581bdfeb5110a8cfe5f2ee1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaresetupdefense_evasionexecutionasyncratpersistenceratspyware

Malware Config

Extracted

Family

  • asyncrat

Version

  • 1.0.7

Botnet

  • Setup

C2

  • af88.run:443

  • af88.run:80

  • af88.run:53

  • af88.run:8080

  • af88.run:1604

  • 777x.you:443

  • 777x.you:80

  • 777x.you:53

  • 777x.you:8080

  • 777x.you:1604

  • www.777x.you:443

  • www.777x.you:80

  • www.777x.you:53

  • www.777x.you:8080

  • www.777x.you:1604

  • www.af88.run:443

  • www.af88.run:80

  • www.af88.run:53

  • www.af88.run:8080

  • www.af88.run:1604

Mutex

  • StoreInstaller-kja6-sfk-as3k238-j3-2fuj

Attributes
  • delay

    2

  • install

    true

  • install_file

    StoreInstaller.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 42 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 14 IoCs
  • 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 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 6 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\b3951980b0017d9e90b9b709a7a6af848adf7f273581bdfeb5110a8cfe5f2ee1.exe
    "C:\Users\Admin\AppData\Local\Temp\b3951980b0017d9e90b9b709a7a6af848adf7f273581bdfeb5110a8cfe5f2ee1.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:6084
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "StoreInstaller" /tr '"C:\Users\Admin\AppData\Roaming\StoreInstaller.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:236
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "StoreInstaller" /tr '"C:\Users\Admin\AppData\Roaming\StoreInstaller.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3944
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCD39.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4944
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1292
      • C:\Users\Admin\AppData\Roaming\StoreInstaller.exe
        "C:\Users\Admin\AppData\Roaming\StoreInstaller.exe"
        3⤵
        • Executes dropped EXE
        PID:2168
  • C:\Users\Admin\AppData\Roaming\StoreInstaller.exe
    "C:\Users\Admin\AppData\Roaming\StoreInstaller.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:5128
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3804
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
      PID:2504
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
        PID:6076
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
          PID:3076

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              prep_Activatable Class_Hermes_perf.cache
              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
              • Size 599B
              • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              tmpCD39.tmp.bat
              • Path C:\Users\Admin\AppData\Local\Temp\tmpCD39.tmp.bat
              • Size 158B
              • SHA256 cb1aa9bffdcea4ca72e15f3c833a2c475eafd7ccc67e10d1855bed802dd4576e
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              StoreInstaller.exe
              • Path C:\Users\Admin\AppData\Roaming\StoreInstaller.exe
              • Size 133KB
              • SHA256 b3951980b0017d9e90b9b709a7a6af848adf7f273581bdfeb5110a8cfe5f2ee1
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/2504-78-0x000001C8E51D0000-0x000001C8E51F0000-memory.dmp
              Download

              memory/2504-51-0x000001C8D4500000-0x000001C8D4520000-memory.dmp
              Download

              memory/2504-64-0x000001C8D4750000-0x000001C8D4770000-memory.dmp
              Download

              memory/2504-52-0x000001C8D4910000-0x000001C8D4A10000-memory.dmp
              Download

              memory/2504-33-0x000001C0CF8C0000-0x000001C0CF9C0000-memory.dmp
              Download

              memory/2504-198-0x000001C8E8730000-0x000001C8E89CE000-memory.dmp
              Download

              memory/6076-199-0x0000021BFCB30000-0x0000021BFCDCE000-memory.dmp
              Download

              memory/6084-7-0x00007FFF5C570000-0x00007FFF5CF14000-memory.dmp
              Download

              memory/6084-3-0x00007FFF5C570000-0x00007FFF5CF14000-memory.dmp
              Download

              memory/6084-2-0x00007FFF5C570000-0x00007FFF5CF14000-memory.dmp
              Download

              memory/6084-1-0x00007FFF5C6FF000-0x00007FFF5C700000-memory.dmp
              Download

              memory/6084-0-0x0000000000320000-0x0000000000348000-memory.dmp
              Download