09443e0c254c24351f4afe18e6cf91b462839d3f66cfdc5852cbc23bbfdd1fd4

Analysis

user interaction
yes
max time kernel
149s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 13:44

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General

Target
VoiceMod.exe
Size 10.5MB
Sample260804-q1vxnsyshx
SHA256 09443e0c254c24351f4afe18e6cf91b462839d3f66cfdc5852cbc23bbfdd1fd4
MD5 0d8edfeb9db1dffba7c1e336ec207a0d
SHA1 20f2dd672c370b7718ac3369b813833deb973ce0
SHA512 7c347644d1c50f36437b1a230478a9b61a2166ba7f6f8ac4aa3b55f869d8447b8bd1decf8e17c07e9b6684ef1bbfca620acf58c503fd8267a2989f373ae1424b
SSDEEP 98304:s6KSs5cdy/ydkU7IQyKQcvS4yrhkeHbaiGQFL+ELmI453av0M07xh:PKx58kU7I1dc9yrhBGiGW+E6IgM07xh
TLSH
T106B6BF56E2F900E8D5BBC0B8C6575517EBB1345917309BEB52A08A692F37FE0AE3D310
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

collection defense_evasion discovery persistence privilege_escalation spyware stealer

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 6 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	WindowsAssistant.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ysogpgwu.4r4.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	ysogpgwu.4r4.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	ysogpgwu.4r4.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	WindowsAssistant.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	WindowsAssistant.exe

Executes dropped EXE 2 IoCs

pid	Process
5732	ysogpgwu.4r4.exe
5284	WindowsAssistant.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	WindowsAssistant.exe
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	WindowsAssistant.exe
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ysogpgwu.4r4.exe
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ysogpgwu.4r4.exe
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ysogpgwu.4r4.exe
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	WindowsAssistant.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsUpdateAssistant = "\"C:\\Users\\Admin\\AppData\\Roaming\\WindowsAssistant\\WindowsAssistant.exe\""	ysogpgwu.4r4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsUpdateAssistant = "\"C:\\Users\\Admin\\AppData\\Roaming\\WindowsAssistant\\WindowsAssistant.exe\""	WindowsAssistant.exe

Looks up external IP address via web service 1 TTPs 2 IoCs

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

discovery

Internet Connection Discovery

T1016.001

flow	ioc
1	icanhazip.com
1	ip-api.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 12 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
3664	netsh.exe
2032	netsh.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	WindowsAssistant.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WindowsAssistant.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ysogpgwu.4r4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ysogpgwu.4r4.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
5732	ysogpgwu.4r4.exe
5732	ysogpgwu.4r4.exe
5732	ysogpgwu.4r4.exe
5732	ysogpgwu.4r4.exe
5732	ysogpgwu.4r4.exe
5284	WindowsAssistant.exe
5284	WindowsAssistant.exe
5284	WindowsAssistant.exe
5284	WindowsAssistant.exe
5284	WindowsAssistant.exe
5284	WindowsAssistant.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	5732	ysogpgwu.4r4.exe
Token: SeDebugPrivilege	5732	ysogpgwu.4r4.exe
Token: SeDebugPrivilege	5732	ysogpgwu.4r4.exe
Token: SeDebugPrivilege	5284	WindowsAssistant.exe
Token: SeDebugPrivilege	5284	WindowsAssistant.exe
Token: SeDebugPrivilege	5284	WindowsAssistant.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4168 wrote to memory of 5732	4168	VoiceMod.exe	90
PID 5732 wrote to memory of 728	5732	ysogpgwu.4r4.exe	91
PID 5732 wrote to memory of 3664	5732	ysogpgwu.4r4.exe	93
PID 5284 wrote to memory of 5560	5284	WindowsAssistant.exe	97
PID 5284 wrote to memory of 2032	5284	WindowsAssistant.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	WindowsAssistant.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	WindowsAssistant.exe

C:\Users\Admin\AppData\Local\Temp\VoiceMod.exe
"C:\Users\Admin\AppData\Local\Temp\VoiceMod.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4168
- C:\Users\Admin\AppData\Local\Temp\ysogpgwu.4r4.exe
  "C:\Users\Admin\AppData\Local\Temp\ysogpgwu.4r4.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5732
- - C:\Windows\SYSTEM32\netsh.exe
    "netsh" wlan export profile key=clear folder="C:\Users\Admin\AppData\Local\Temp\IntelixWifiExport_f14cf1402be246518b3efb808eb160c4"
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    PID:728
- - C:\Windows\SYSTEM32\netsh.exe
    "netsh" wlan show profiles
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:3664

C:\Users\Admin\AppData\Roaming\WindowsAssistant\WindowsAssistant.exe
"C:\Users\Admin\AppData\Roaming\WindowsAssistant\WindowsAssistant.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:5284
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan export profile key=clear folder="C:\Users\Admin\AppData\Local\Temp\IntelixWifiExport_7a5d359632bc4eb5875aac46084ad4ba"
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  PID:5560
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan show profiles
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  - System Network Configuration Discovery: Wi-Fi Discovery
  PID:2032

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:5540

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2788

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Wi-Fi Discovery

T1016.002

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

ysogpgwu.4r4.exe

Path C:\Users\Admin\AppData\Local\Temp\ysogpgwu.4r4.exe
Size 256KB
SHA256 4f2f4e01e8c8a50f4cfb94fb31c771aa3770e20cf0da8773840afc360d80f9d1
MD5 32e6eeab8be0937d67cc08039c39c19e
SHA1 e54713d0560afddae69c5220b153be5aaf148a8c
SHA512 074e6fb4050628603cbae8d889ec3e7852cf53cb8e604ec8dc8d2a5806956cdacd89444581f0d76ade1c32b24db4995409813ef8fa2d9d1721833203e4fe932f
SSDEEP 3072:5cgoU65m6h0I1VWl9rbzess17Ws0kCF+xKlbW3e1E05Y92BSkirKYfRopTK6Yz:GgoU4X1olxXs17IKKlUeA84rKYEw
TLSH
T1CD444B5833FC1A14F2BFCF75A8B4655087B2F926A915E70D1D9A34DC2E32791AA10B33
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/5732-10-0x00007FF98B76F000-0x00007FF98B770000-memory.dmp

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memory/5732-11-0x0000028C0DCA0000-0x0000028C0DCE4000-memory.dmp

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memory/5732-12-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-13-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-14-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-16-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-17-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-18-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-19-0x0000028C28630000-0x0000028C28680000-memory.dmp

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memory/5732-20-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-21-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-22-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-23-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-24-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-25-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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memory/5732-26-0x0000028C28680000-0x0000028C28692000-memory.dmp

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memory/5732-27-0x00007FF98B5E0000-0x00007FF98BF84000-memory.dmp

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