General
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Target
B6871CEF458A765D51E3B0A1AE324E60.zip
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Size
2.5MB
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Sample
231121-bq33zaca4z
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MD5
34384f1f053425ab5a5519f54ee6fbd6
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SHA1
60170b39d31c21e7a66f96aa108f650f69323ffd
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SHA256
8d7f545858b73164fcf5fc5d0553aecbe3c4ac81958bb58c3f8ca0ba80516607
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SHA512
6b82fd25fb60391bd1fe55ea26adab1cc5a053492ddf6f72eaaca7a7157b7e86e54e5ad955ae8334f578b6df6b2d0f41aea98abf7bb5cbea61615ee27817acca
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SSDEEP
49152:TrWTY55MrJsrk6FVwq7KX6TTUiEJsWGQVaOWWEooeQjRiYiR6:8d1+jVh7a6TTUiCs4V3io9Qjyc
Static task
static1
Behavioral task
behavioral1
Sample
B6871CEF458A765D51E3B0A1AE324E60.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
B6871CEF458A765D51E3B0A1AE324E60.exe
Resource
win10v2004-20231023-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\IMPORTANT_NOTICE.txt
Targets
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Target
B6871CEF458A765D51E3B0A1AE324E60
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Size
2.5MB
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MD5
b6871cef458a765d51e3b0a1ae324e60
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SHA1
b62dda6efcc41ef4fdf6b3990b64ff54f08f2e56
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SHA256
a5182257daef1abde3a971ed1c3d9c3bee6d74fa3d4b0bcb379e5a9dd57340ea
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SHA512
b11376ecfba8c3b03afc03ac001619769b6e3284518b199413b0f0403a7e71a977337a11d2c5afd0f023141bf609df22b8a7dd3f91f7c198aba91387c4e76d7f
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SSDEEP
49152:QgwRqifu1DBgutBPNeSGIB10SvOGbRrPas8L5pBWBm7dziiM:QgwRqvguPPCbSzris8LfBWBPp
Score10/10-
Detects Mimic ransomware
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Modifies security service
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Modifies boot configuration data using bcdedit
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Renames multiple (3689) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Renames multiple (5782) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Sets file execution options in registry
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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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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Change Default File Association
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
2Disable or Modify Tools
2Indicator Removal
2File Deletion
2Modify Registry
7