General
- Target vvininit.exe
- Size 31.0MB
- Sample261017-e4g97swzbx
- SHA256 5d6760d29fc5e1e1661d58b4d9db2c36ff7a2970761ee6080e896da145659d58
- MD5 69ec6685b1a83fdb465152db4feca3f5
- SHA1 1c825dd1a46e6eafe773c8e6363db5edcde48859
- SHA512 89218f8ae1f7195b0ff1b69e49415a7a51e396da032ef11cffc583e249789c532098dc239af766d98339638e9aab8865649d08be3eabe19fe92e235e893461a0
- SSDEEP 1536:YuBi2Q8ycodQbe0DaCatbt0mbBGqWSNHZc1dbu0I+CAgTnZI3Wr3b9:7I2Q8eltbHMbuiDmnZOWr3Z
- TLSH T16667F80033E95126E1FE9EB8DDF15185967BF5776A32E21D2CCD218A0623BC0DE10B7A
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
vvininit.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
vvininit.exe
Resource
win10ltsc2021-20260911-en
Behavioral task
behavioral3
Sample
vvininit.exe
Resource
win11-20260911-en
Behavioral task
behavioral4
Sample
vvininit.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Targets
-
- Target vvininit.exe
- Size 31.0MB
- SHA256 5d6760d29fc5e1e1661d58b4d9db2c36ff7a2970761ee6080e896da145659d58
- MD5 69ec6685b1a83fdb465152db4feca3f5
- SHA1 1c825dd1a46e6eafe773c8e6363db5edcde48859
- SHA512 89218f8ae1f7195b0ff1b69e49415a7a51e396da032ef11cffc583e249789c532098dc239af766d98339638e9aab8865649d08be3eabe19fe92e235e893461a0
- SSDEEP 1536:YuBi2Q8ycodQbe0DaCatbt0mbBGqWSNHZc1dbu0I+CAgTnZI3Wr3b9:7I2Q8eltbHMbuiDmnZOWr3Z
- TLSH T16667F80033E95126E1FE9EB8DDF15185967BF5776A32E21D2CCD218A0623BC0DE10B7A
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Detects SentinelRAT payload
-
Modifies firewall policy service
-
UAC bypass
-
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
Disables RegEdit via registry modification
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Checks whether UAC is enabled
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Executes a VBScript file via the Windows Script Host.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Visual Basic
1Scheduled Task/Job
1Scheduled Task
1Persistence
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
2Disable or Modify System Firewall
1Disable or Modify Tools
1Modify Registry
3