General
- Target FiveM External - Ztrex.exe
- Size 95.4MB
- Sample261014-lvftcasxht
- SHA256 530390bf9ace1635b0b75d8d0719a081a4f49c56c7dc2544a803d435b0b74e8a
- MD5 65c984d0e6c3af9b3fd7e6ef9b4986f8
- SHA1 ba3d17cea7b2806dee793b91741efc640014dd2a
- SHA512 85041b46751fb92542ba5284c67eb1eaa1bc4ae48c809e8ff65b1144afce361048db59d912bf47913ca5fe099492f96957f67afe5393765dc205860b4b998719
- SSDEEP 1572864:WTb1uAAFxxdfgPTwLjd0TVBEUzb9ZZNscsODDH3xTH1gQOFAQz1jjMOkI59:U1Ix3gPs10TVKcb3RLDr3xTHWfAQzBj3
- TLSH T180283326DB4645FEE8FB36B581C61E21FB3130484F7AE6DB661C5A3409673346E39B20
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
FiveM External - Ztrex.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
FiveM External - Ztrex.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Targets
-
- Target FiveM External - Ztrex.exe
- Size 95.4MB
- SHA256 530390bf9ace1635b0b75d8d0719a081a4f49c56c7dc2544a803d435b0b74e8a
- MD5 65c984d0e6c3af9b3fd7e6ef9b4986f8
- SHA1 ba3d17cea7b2806dee793b91741efc640014dd2a
- SHA512 85041b46751fb92542ba5284c67eb1eaa1bc4ae48c809e8ff65b1144afce361048db59d912bf47913ca5fe099492f96957f67afe5393765dc205860b4b998719
- SSDEEP 1572864:WTb1uAAFxxdfgPTwLjd0TVBEUzb9ZZNscsODDH3xTH1gQOFAQz1jjMOkI59:U1Ix3gPs10TVKcb3RLDr3xTHWfAQzBj3
- TLSH T180283326DB4645FEE8FB36B581C61E21FB3130484F7AE6DB661C5A3409673346E39B20
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Modifies WinLogon for persistence
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Enumerates VirtualBox DLL files
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Enumerates VirtualBox registry keys
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Looks for VirtualBox Guest Additions in registry
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Looks for VirtualBox drivers on disk
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Modifies boot configuration data using bcdedit
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Looks for VMWare Tools registry key
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Looks for VMWare drivers on disk
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Looks for VMWare services registry key.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Creates a file in the Startup directory
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
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Executes a file named after a Windows system binary
The file runs from a user directory while carrying the name of an executable that normally only exists in System32.
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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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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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Discovers running processes
Running process information can be used to identify security tools or plan follow-on actions.
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Drops file in System32 directory
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Executes a VBScript file via the Windows Script Host.
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Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
4PowerShell
2Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Installer Packages
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
4Active Setup
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Installer Packages
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Debugger Evasion
1Hide Artifacts
1Ignore Process Interrupts
1Impair Defenses
1Safe Mode Boot
1Indicator Removal
1Clear Persistence
1Masquerading
1Match Legitimate Name or Location
1Modify Registry
4System Binary Proxy Execution
1Msiexec
1Virtualization/Sandbox Evasion
8Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Debugger Evasion
1File and Directory Discovery
3Peripheral Device Discovery
3Process Discovery
1Query Registry
12System Information Discovery
8System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
2Internet Connection Discovery
1System Time Discovery
1Virtualization/Sandbox Evasion
8