General
- Target Chernobyl.exe
- Size 1.5MB
- Sample261001-v7mxvsshqc
- SHA256 4594f4ca982b30754cd95344fd0f682f17b6762fe9933cd324ebdf23bf62acd1
- MD5 f82146b660bd76cc092c4c2ae7fe6d97
- SHA1 d5cb2455eb0e3728e8b88ee5db0b289ef3e9478a
- SHA512 2a65b65eaf41c654d6f9371ed5eb209cced4fa1614a8507004fa645ac76084a81f93a8b4db51f0940d856fbe2476d9b67f967185de37d1bf41b6480f15355cef
- SSDEEP 24576:XzYx3PgYWwocek/r2+AAYNh3tBULAkS7LevcUMkoI3j8K12LE/q:XkoA/qhlL3rmzS7nUdoI3F1cE/
- TLSH T1AE752822A687D9A3C41E1270DDC7D32977B2E0F46B364B8BBA4C87EF6D213A11CC5546
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Chernobyl.exe
Resource
win10v2004-20260911-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
Chernobyl.exe
Resource
win11ltsc2024-20260911-en
10 signatures
150 seconds
Malware Config
Targets
-
- Target Chernobyl.exe
- Size 1.5MB
- SHA256 4594f4ca982b30754cd95344fd0f682f17b6762fe9933cd324ebdf23bf62acd1
- MD5 f82146b660bd76cc092c4c2ae7fe6d97
- SHA1 d5cb2455eb0e3728e8b88ee5db0b289ef3e9478a
- SHA512 2a65b65eaf41c654d6f9371ed5eb209cced4fa1614a8507004fa645ac76084a81f93a8b4db51f0940d856fbe2476d9b67f967185de37d1bf41b6480f15355cef
- SSDEEP 24576:XzYx3PgYWwocek/r2+AAYNh3tBULAkS7LevcUMkoI3j8K12LE/q:XkoA/qhlL3rmzS7nUdoI3F1cE/
- TLSH T1AE752822A687D9A3C41E1270DDC7D32977B2E0F46B364B8BBA4C87EF6D213A11CC5546
- MD5 SHA1 SHA512 SSDEEP TLSH
-
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.
-
Executes dropped EXE
-
Modifies system executable filetype association
-
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