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General
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Target
MimicBuilder.exe
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Size
3.2MB
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Sample
250226-rm83tasmy5
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MD5
5960d101c8170b432f93387b96927af7
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SHA1
8d7e349c22a11f76fc13e9edc50e25067766ef66
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SHA256
f23542f7ee78d204034cb11a48c97b04e447fc17535133414da453fadd4738cb
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SHA512
9c7984f8bb374291af37268fb2c5008ac71d64d6fe0e5837c29000d448c81da0fca820d8a74ffeb3b50b0677cbb64c4331ba27fbce4ca42ec65634926ae4e251
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SSDEEP
49152:ngwRk5ifu1DBgutBPNl1XIVRGTYAxoLayVwbRp2BQG82XmBTgmrZhhfCYZ:ngwRk5vguPPH1XWGIb4Rp26G844TXn
Static task
static1
Behavioral task
behavioral1
Sample
MimicBuilder.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
MimicBuilder.exe
Resource
win10v2004-20250217-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\BC57CE41-27D7-C825-6CB7-A6508B063C81\global_options.ini
Targets
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Target
MimicBuilder.exe
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Size
3.2MB
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MD5
5960d101c8170b432f93387b96927af7
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SHA1
8d7e349c22a11f76fc13e9edc50e25067766ef66
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SHA256
f23542f7ee78d204034cb11a48c97b04e447fc17535133414da453fadd4738cb
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SHA512
9c7984f8bb374291af37268fb2c5008ac71d64d6fe0e5837c29000d448c81da0fca820d8a74ffeb3b50b0677cbb64c4331ba27fbce4ca42ec65634926ae4e251
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SSDEEP
49152:ngwRk5ifu1DBgutBPNl1XIVRGTYAxoLayVwbRp2BQG82XmBTgmrZhhfCYZ:ngwRk5vguPPH1XWGIb4Rp26G844TXn
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Detects Mimic ransomware
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Mimic family
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Clears Windows event logs
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Change Default File Association
1