General
- Target chernobyl mbr .exe
- Size 3.2MB
- Sample260928-py4alathmf
- SHA256 79b15418ed5af280f8563206b5d449bb67b83f85420fa06912783b1cdde06576
- MD5 a0e4b5beb57ebad62635e363a48e5758
- SHA1 6f27eb03f168c6b050fc9d32be7a6672cacf9467
- SHA512 e043c2ea5e3c749223347b15858e3ca8c5553ca1bb94b044a083579eef1a69824ddedbd025aace42fa184b4b05c75559469c2ba22dd28f6491316bd5a1310fd2
- SSDEEP 49152:6v7JTHkNRg6thCr/2yU1dLU1o+NWT7uDU2AM9Fw7MbcJv4NoQ45XEWkrwRd66bKr:
- TLSH T155F5E42229EF509DB3A39AAC5FC8F8BF9959F673160E30F620711B46C721D818D92375
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
chernobyl mbr .exe
Resource
win10v2004-20260911-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
chernobyl mbr .exe
Resource
win11ltsc2024-20260911-en
12 signatures
150 seconds
Malware Config
Targets
-
- Target chernobyl mbr .exe
- Size 3.2MB
- SHA256 79b15418ed5af280f8563206b5d449bb67b83f85420fa06912783b1cdde06576
- MD5 a0e4b5beb57ebad62635e363a48e5758
- SHA1 6f27eb03f168c6b050fc9d32be7a6672cacf9467
- SHA512 e043c2ea5e3c749223347b15858e3ca8c5553ca1bb94b044a083579eef1a69824ddedbd025aace42fa184b4b05c75559469c2ba22dd28f6491316bd5a1310fd2
- SSDEEP 49152:6v7JTHkNRg6thCr/2yU1dLU1o+NWT7uDU2AM9Fw7MbcJv4NoQ45XEWkrwRd66bKr:
- TLSH T155F5E42229EF509DB3A39AAC5FC8F8BF9959F673160E30F620711B46C721D818D92375
- MD5 SHA1 SHA512 SSDEEP TLSH
-
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.
-
Executes dropped EXE
-
Modifies system executable filetype association
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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.
MITRE ATT&CK Enterprise v16
Persistence
Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1