General
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Target
Jz.exe
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Size
7.5MB
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Sample
240416-ap8fmaec3w
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MD5
cf7974f3af7e1307a4c325750febb201
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SHA1
8b1695eb2481872694ac785ba0a14c8e1bb7398c
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SHA256
9d2ad8c13ed60d88296433fd3b911995589ff90c476f4ec028596f43f1ac9fe3
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SHA512
150895aaf679304c6715368561e8435f6290fcf714f98dac1f0714e6057304708c6524ed1d323426822b765a2e6d578fc618628d1f9ba998afb6564109600612
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SSDEEP
196608:XdgqoyUWq8D+w448SSwzxzgjboADM8IaeTCRI:FawN8SXz+YUIRCRI
Static task
static1
Behavioral task
behavioral1
Sample
Jz.exe
Resource
win10v2004-20240412-en
Malware Config
Targets
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Target
Jz.exe
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Size
7.5MB
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MD5
cf7974f3af7e1307a4c325750febb201
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SHA1
8b1695eb2481872694ac785ba0a14c8e1bb7398c
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SHA256
9d2ad8c13ed60d88296433fd3b911995589ff90c476f4ec028596f43f1ac9fe3
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SHA512
150895aaf679304c6715368561e8435f6290fcf714f98dac1f0714e6057304708c6524ed1d323426822b765a2e6d578fc618628d1f9ba998afb6564109600612
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SSDEEP
196608:XdgqoyUWq8D+w448SSwzxzgjboADM8IaeTCRI:FawN8SXz+YUIRCRI
Score10/10-
Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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Adds Run key to start application
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
2Virtualization/Sandbox Evasion
1