sentinelrat | 5d6760d29fc5e1e1661d58b4d9db2c36ff7a2970761ee6080e896da145659d58

Analysis

max time kernel
149s
max time network
151s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260911-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
17/10/2026, 04:29

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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

Score

10^/10

defense_evasion discovery execution sentinelrat persistence rat trojan

Malware Config

Signatures

Family: SentinelRAT
SentinelRAT is a Windows remote access tool written in C#.
rat sentinelrat

Detects SentinelRAT payload 1 IoCs

resource	yara_rule
behavioral2/memory/4476-0-0x000001B213690000-0x000001B2136AA000-memory.dmp	family_sentinelrat

Modifies firewall policy service 3 TTPs 1 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	vvininit.exe

UAC bypass 3 TTPs 1 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	vvininit.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2156	powershell.exe

Disables RegEdit via registry modification 1 IoCs

defense_evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3202520547-175870679-441661622-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	vvininit.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3202520547-175870679-441661622-1000\Control Panel\International\Geo\Nation	vvininit.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	vvininit.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	vvininit.exe

Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

Web Service

T1102

flow	ioc
9	pastebin.com
10	pastebin.com

Looks up external IP address via web service 1 TTPs 1 IoCs

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

discovery

Internet Connection Discovery

T1016.001

flow	ioc
14	ip-api.com

Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs

execution

Visual Basic

T1059.005

pid	Process
4988	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	vvininit.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	vvininit.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	WScript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	WScript.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3202520547-175870679-441661622-1000_Classes\Local Settings	vvininit.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4476	vvininit.exe
2156	powershell.exe
2156	powershell.exe
4476	vvininit.exe
4476	vvininit.exe
4476	vvininit.exe
4476	vvininit.exe
4476	vvininit.exe
4476	vvininit.exe
4476	vvininit.exe
4476	vvininit.exe
4476	vvininit.exe
4476	vvininit.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	4476	vvininit.exe
Token: SeDebugPrivilege	2156	powershell.exe
Token: SeIncreaseQuotaPrivilege	2156	powershell.exe
Token: SeSecurityPrivilege	2156	powershell.exe
Token: SeTakeOwnershipPrivilege	2156	powershell.exe
Token: SeLoadDriverPrivilege	2156	powershell.exe
Token: SeSystemProfilePrivilege	2156	powershell.exe
Token: SeSystemtimePrivilege	2156	powershell.exe
Token: SeProfSingleProcessPrivilege	2156	powershell.exe
Token: SeIncBasePriorityPrivilege	2156	powershell.exe
Token: SeCreatePagefilePrivilege	2156	powershell.exe
Token: SeBackupPrivilege	2156	powershell.exe
Token: SeRestorePrivilege	2156	powershell.exe
Token: SeShutdownPrivilege	2156	powershell.exe
Token: SeDebugPrivilege	2156	powershell.exe
Token: SeSystemEnvironmentPrivilege	2156	powershell.exe
Token: SeRemoteShutdownPrivilege	2156	powershell.exe
Token: SeUndockPrivilege	2156	powershell.exe
Token: SeManageVolumePrivilege	2156	powershell.exe
Token: 33	2156	powershell.exe
Token: 34	2156	powershell.exe
Token: 35	2156	powershell.exe
Token: 36	2156	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 2156	4476	vvininit.exe	83
PID 4476 wrote to memory of 4612	4476	vvininit.exe	85
PID 4476 wrote to memory of 4828	4476	vvininit.exe	87
PID 4476 wrote to memory of 4988	4476	vvininit.exe	90

System policy modification 1 TTPs 1 IoCs

defense_evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	vvininit.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\vvininit.exe
"C:\Users\Admin\AppData\Local\Temp\vvininit.exe"
1⤵
- Modifies firewall policy service
- UAC bypass
- Disables RegEdit via registry modification
- Checks computer location settings
- Checks whether UAC is enabled
- Reads the TCP/IP host and domain name from the registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4476
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:SystemDrive/
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2156
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /delete /tn "MSEdgeUpdaterTask-2958FSA1" /f
  2⤵
  PID:4612
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "MSEdgeUpdaterTask-2958FSA1" /tr "'C:\Users\Admin\AppData\Local\Temp\vvininit.exe'" /sc minute /mo 5 /rl highest /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4828
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\MSEdgeUpdate.vbs"
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  - Reads the TCP/IP host and domain name from the registry
  PID:4988

C:\Users\Admin\AppData\Local\Temp\vvininit.exe
"C:\Users\Admin\AppData\Local\Temp\vvininit.exe"
1⤵
PID:1728

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Visual Basic

T1059.005

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

MSEdgeUpdate.vbs

Path C:\Users\Admin\AppData\Local\Temp\MSEdgeUpdate.vbs
Size 2KB
SHA256 658557b54a121e2466d40586b7cbdb6457de8d8b7bcf95a74ad367c29a0e9834
MD5 1abdb021cd9199062ca8da7f77d08af6
SHA1 2caf2ba8a7aa710ef77426f94bcb8f2d4598f960
SHA512 b7b044bc7e3f022c4b89b959d7845f530e8b380f275efbc38857ed3d3020739f6ef4a67a54705783e78fc58f28dc7a54853f336423252a8191891f949fac23af
TLSH
T148410307FC0681769CF34B796CA7714EE8932CA35A390464B6DCC5C50F32A5DB5A11F9
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_vphic45w.12s.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vphic45w.12s.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/2156-5-0x000002905E940000-0x000002905E950000-memory.dmp

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memory/2156-4-0x000002905E940000-0x000002905E950000-memory.dmp

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memory/2156-6-0x000002905E9A0000-0x000002905E9C2000-memory.dmp

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memory/2156-14-0x000002905E940000-0x000002905E950000-memory.dmp

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memory/2156-25-0x00000290778C0000-0x0000029077ADD000-memory.dmp

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memory/4476-0-0x000001B213690000-0x000001B2136AA000-memory.dmp

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memory/4476-1-0x000001B2153D0000-0x000001B2153E0000-memory.dmp

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memory/4476-27-0x000001B2153D0000-0x000001B2153E0000-memory.dmp

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