General
- Target dcb8bbdb6c842eab36c28a4a384bd80bef110b6be1c2184ab71b5bef063a2e4d
- Size 3.4MB
- Sample261008-1vxt7aet7r
- SHA256 dcb8bbdb6c842eab36c28a4a384bd80bef110b6be1c2184ab71b5bef063a2e4d
- MD5 e217d4667d43983a81bb9bab5d7edee5
- SHA1 092244a00df47858a41b72eac897403685cad51b
- SHA512 57095957a1cef7c93253cb09d97b1eb77284eb625df8a04397a9bc4cd19bf461cb27c4b85e44a2dfd2c5dcc9c9ae57b46e605ea222b741d26520a0f982ae5638
- SSDEEP 98304:V4SPXPZXEBWEgNfw/CIzWSqooQT/HSskLkL2fcpOwzf/pG:KSPXadgRoCIzWSBrXv2EYwzo
- TLSH T193F5339D9134ED95F674873895752FD6EF3AD06B5E43DA1FC083E20E4B0B2E2224C91A
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
appnstaller.5.3.07.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
appnstaller.5.3.07.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Targets
-
- Target appnstaller.5.3.07.exe
- Size 31.8MB
- SHA256 afbb9817c50110bb2c4a8d7e48510cd82936473a203292991ad4b19cd1424fd7
- MD5 26cc53b7908f12599710ebff202fe9d2
- SHA1 f4a1d96fea2dbbfc9461122690a4e5f738bf28c9
- SHA512 eb498faca5af11c37207844782c711535408b6553f84b488ff4a018ac529664e39722279ea09077e8fbdced4cc961fa0c4635b0a8d614702211866d4df267209
- SSDEEP 98304:MrLI1oWL50E5AF3EJeqliffMeDK/9m2g1iQfMJPPK6nAwTYkrhRqlNvREqE6rn0c:x50kACE2+fMeDKVm2G5fMJPP4
- TLSH T1ED771857F7418DD3F855523488D68BD063B2FCB58A61872722A8B339BFFE2881ED1494
- MD5 SHA1 SHA512 SSDEEP TLSH
-
UAC bypass
-
Windows security bypass
-
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
Drops file in Drivers directory
-
Possible privilege escalation attempt
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Disables service(s)
-
Executes dropped EXE
-
Loads dropped DLL
-
Modifies file permissions
-
Adds Run key to start application
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Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
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Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
2Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Screensaver
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Screensaver
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Impair Defenses
2Disable or Modify Tools
2Indicator Removal
1Clear Persistence
1Modify Registry
4