General
- Target ExLoader_Installer.exe
- Size 22.2MB
- Sample260730-atqrdahd64
- SHA256 59d78963e8f56b25b95c18d5c672789ddb62ee0e186eda49250cef99edad78b9
- MD5 e6316f8cf95a39fa15ae3b429bdee860
- SHA1 43f39b21c1af9616c387a10e29394e2bafb067b9
- SHA512 c6147f0adff15e71e2541ee1f9cea43b88343799b256012a68cd26ff9e5a50950aba5fb7ed2c4b56e474e0c7772c90d87446295d997a098902c24f588a638614
- SSDEEP 393216:Fy7xm6OlKHpbsjgPHa7kyzzFBQPzql6s+HsdRDFhudYQI4OZMKmargPG1IqAysE2:wZOlKHEgpyvFC+l6uRgtI4O6Kma8ZqGf
- TLSH T1403733C1BBCD61BDE431D8BEE0166182D11BBF954199F22A9B6BD2CCCC936405C36B72
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
ExLoader_Installer.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
ExLoader_Installer.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target ExLoader_Installer.exe
- Size 22.2MB
- SHA256 59d78963e8f56b25b95c18d5c672789ddb62ee0e186eda49250cef99edad78b9
- MD5 e6316f8cf95a39fa15ae3b429bdee860
- SHA1 43f39b21c1af9616c387a10e29394e2bafb067b9
- SHA512 c6147f0adff15e71e2541ee1f9cea43b88343799b256012a68cd26ff9e5a50950aba5fb7ed2c4b56e474e0c7772c90d87446295d997a098902c24f588a638614
- SSDEEP 393216:Fy7xm6OlKHpbsjgPHa7kyzzFBQPzql6s+HsdRDFhudYQI4OZMKmargPG1IqAysE2:wZOlKHEgpyvFC+l6uRgtI4O6Kma8ZqGf
- TLSH T1403733C1BBCD61BDE431D8BEE0166182D11BBF954199F22A9B6BD2CCCC936405C36B72
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Suspicious use of NtCreateProcessExOtherParentProcess
-
Downloads MZ/PE file
-
Drops file in Drivers directory
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Sets service image path in registry
This determines the executable launched when a service starts. It can be used to establish persistence.
-
Uses Session Manager for persistence
Creates Session Manager registry key to run executable early in system boot.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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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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Windows security modification
-
Adds Run key to start application
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Checks for any installed AV software in registry
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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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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Component Object Model Hijacking
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
5Pre-OS Boot
1Bootkit
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Peripheral Device Discovery
2Query Registry
7Software Discovery
1Security Software Discovery
1System Information Discovery
6System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1System Time Discovery
1