General
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Target
keysystem.exe
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Size
11.7MB
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Sample
240630-tj7fxszgqe
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MD5
43cddb521fa7ddcad67e110b574834b2
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SHA1
c90567b8b299c4033e76dd7eea6d352fa736aa2d
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SHA256
7ac2dec21e85907a6a836643e4818409a01ab0c02f134698dd58c132c183e05e
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SHA512
a4d48557c36350c8700561ebb7c3507dfc74aeca3be9fd73bad086a389cd3a3ea5466306ec8b9b4bcac67215d5fd51760e03a6c9c3f021bf32254b3cee59f776
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SSDEEP
196608:Zqc4ItH0GA1HeT39IigwE1ncKOVVthIUo0W8/Lo79u5Y3j7lBvUniyQIWA3affF:EcHF0f1+TtIiFg0VNRW8E5u6/jgZcf
Behavioral task
behavioral1
Sample
keysystem.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
keysystem.exe
Resource
win10v2004-20240611-en
Malware Config
Targets
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Target
keysystem.exe
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Size
11.7MB
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MD5
43cddb521fa7ddcad67e110b574834b2
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SHA1
c90567b8b299c4033e76dd7eea6d352fa736aa2d
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SHA256
7ac2dec21e85907a6a836643e4818409a01ab0c02f134698dd58c132c183e05e
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SHA512
a4d48557c36350c8700561ebb7c3507dfc74aeca3be9fd73bad086a389cd3a3ea5466306ec8b9b4bcac67215d5fd51760e03a6c9c3f021bf32254b3cee59f776
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SSDEEP
196608:Zqc4ItH0GA1HeT39IigwE1ncKOVVthIUo0W8/Lo79u5Y3j7lBvUniyQIWA3affF:EcHF0f1+TtIiFg0VNRW8E5u6/jgZcf
Score7/10-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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Loads dropped DLL
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Modifies system executable filetype association
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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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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1