Overview

overview

8

Static

static

3

83bf9a87cc...e3.exe

windows10-2004-x64

7

83bf9a87cc...e3.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 19:46

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General

  • Target
    83bf9a87cc376223c9c33703d527b60ddb1109776ce73a513aecb297a12655e3.exe
  • Size 1.6MB
  • Sample260706-yg5xjacw7s
  • SHA256 83bf9a87cc376223c9c33703d527b60ddb1109776ce73a513aecb297a12655e3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistencespyware

Malware Config

Signatures

  • 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 1 IoCs
  • Unexpected DNS network traffic destination 4 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Drops file in System32 directory 13 IoCs
  • Drops file in Windows directory 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83bf9a87cc376223c9c33703d527b60ddb1109776ce73a513aecb297a12655e3.exe
    "C:\Users\Admin\AppData\Local\Temp\83bf9a87cc376223c9c33703d527b60ddb1109776ce73a513aecb297a12655e3.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1296
  • C:\Windows\Syswow64\a5f8fa6
    C:\Windows\Syswow64\a5f8fa6
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4572
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1412
    • 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
      • Suspicious use of SetWindowsHookEx
      PID:396
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4616
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:5316

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

        a5f8fa6
        • Path C:\Windows\SysWOW64\a5f8fa6
        • Size 1.6MB
        • SHA256 84241a9d3d8b63c380259df8f7315de3b256a2a764442a93580d3e3237962e72
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1296-0-0x0000000000C40000-0x0000000000CA3000-memory.dmp
        Download

        memory/4572-4-0x00000000002A0000-0x0000000000303000-memory.dmp
        Download

        memory/4616-30-0x0000016D001E0000-0x0000016D002E0000-memory.dmp
        Download

        memory/4616-39-0x0000016D01C80000-0x0000016D01CA0000-memory.dmp
        Download

        memory/4616-37-0x0000016D01EF0000-0x0000016D01FF0000-memory.dmp
        Download

        memory/4616-104-0x0000016D01470000-0x0000016D01570000-memory.dmp
        Download

        memory/4616-36-0x0000016D01A20000-0x0000016D01A40000-memory.dmp
        Download

        memory/4616-73-0x0000016D141C0000-0x0000016D141E0000-memory.dmp
        Download