Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/06/2026, 03:03

General

  • Target
    tmpqiz5hmp7.exe
  • Size 712KB
  • Sample260602-dkj41sdy2p
  • SHA256 45af99b9bce7000f54f856e05f2fcc65bedf04506be4068250bbff2dbea18636
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
  • UAC bypass 3 TTPs 12 IoCs
  • Adds policy Run key to start application 2 TTPs 26 IoCs
  • Disables RegEdit via registry modification 6 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 64 IoCs
  • Checks whether UAC is enabled 1 TTPs 6 IoCs
  • Hijack Execution Flow: Executable Installer File Permissions Weakness 1 TTPs 3 IoCs

    Possible Turn off User Account Control's privilege elevation for standard users.

  • Looks up external IP address via web service 8 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 4 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.

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • System policy modification 1 TTPs 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpqiz5hmp7.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpqiz5hmp7.exe"
    1⤵
    • Modifies WinLogon for persistence
    • UAC bypass
    • Adds policy Run key to start application
    • Disables RegEdit via registry modification
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Hijack Execution Flow: Executable Installer File Permissions Weakness
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2280
    • C:\Users\Admin\AppData\Local\Temp\aaosail.exe
      "C:\Users\Admin\AppData\Local\Temp\aaosail.exe" "-"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Impair Defenses: Safe Mode Boot
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Hijack Execution Flow: Executable Installer File Permissions Weakness
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:1484
    • C:\Users\Admin\AppData\Local\Temp\aaosail.exe
      "C:\Users\Admin\AppData\Local\Temp\aaosail.exe" "-"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Hijack Execution Flow: Executable Installer File Permissions Weakness
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • System policy modification
      PID:1488
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:644
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2452

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          aaosail.exe

          • Path C:\Users\Admin\AppData\Local\Temp\aaosail.exe
          • Size 1.3MB
          • SHA256 d03a0522e2ba21880fb4e9c42908e99eba29645ba3e6b208b3d9c0d9e1614c09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          tqbchmmuvzyyviouxwnkvwbggo.tss

          • Path C:\Users\Admin\AppData\Local\tqbchmmuvzyyviouxwnkvwbggo.tss
          • Size 272B
          • SHA256 86f67a3f9600d3697f66e4cd00250449d6d36ca21dcab279f5dd36228038facb
          • MD5 SHA1 SHA512 TLSH

          ucykaqbugvfqywnescemiukaleqfpaigxocmo.seu

          • Path C:\Users\Admin\AppData\Local\ucykaqbugvfqywnescemiukaleqfpaigxocmo.seu
          • Size 3KB
          • SHA256 7dba7cb7f079706824bee3ffcb6cd52a8dfd44da665c61b151f4420305f5708f
          • MD5 SHA1 SHA512 TLSH