General
- Target LetsVPN.exe
- Size 30.4MB
- Sample260701-repdfahz2y
- SHA256 b40c805adee587f29be6f98e986b92b11a545122703ab4eaea4b0fa3c3e02483
- MD5 b08bef15760d186eaa84d7d841498479
- SHA1 5bc427ec099e18056e052e57be56627158028323
- SHA512 03d04394170ad4d0826ec164d04285100635f0744573ca745d246255a5b1268c9b8df6e9f89804acf38395fdc2309d937483b3c76892b1be09dd6f3ef6dad2b6
- SSDEEP 786432:Tt/o9kq4o2+gfnzPE3dLVjI/J+wjIqFOtC3/6eJD:e4o2DzPKFgOqFOAvjJD
- TLSH T1EB671221F24AC13BE56901B1592D9A9F5129BF7A0B7140C7B3DC3E7E2BB54C21236E1B
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
LetsVPN.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
LetsVPN.exe
Resource
win11ltsc2024-20260629-en
Malware Config
Targets
-
- Target LetsVPN.exe
- Size 30.4MB
- SHA256 b40c805adee587f29be6f98e986b92b11a545122703ab4eaea4b0fa3c3e02483
- MD5 b08bef15760d186eaa84d7d841498479
- SHA1 5bc427ec099e18056e052e57be56627158028323
- SHA512 03d04394170ad4d0826ec164d04285100635f0744573ca745d246255a5b1268c9b8df6e9f89804acf38395fdc2309d937483b3c76892b1be09dd6f3ef6dad2b6
- SSDEEP 786432:Tt/o9kq4o2+gfnzPE3dLVjI/J+wjIqFOtC3/6eJD:e4o2DzPKFgOqFOAvjJD
- TLSH T1EB671221F24AC13BE56901B1592D9A9F5129BF7A0B7140C7B3DC3E7E2BB54C21236E1B
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
-
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
-
Modifies Windows Firewall
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
-
Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
4Subvert Trust Controls
1Install Root Certificate
1