Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
14-02-2024 12:47
General
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Target
2024-02-14_3ca3fd6947cfb86b9f63ea6a669d85f3_cryptolocker.exe
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Size
82KB
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MD5
3ca3fd6947cfb86b9f63ea6a669d85f3
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SHA1
a0c969d0f2a54060a0a632a82d80ea8c649c5443
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SHA256
2ecd43def676aefc48b05b87548abcd56b119a7858fd8ae9e320109adcd62341
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SHA512
0a20296499f85ccf091ca070eb021b5cf98247efcfb7681764b7233f6095b6d6ae18bd5d82c091d6fc236b5da09e4a9676ca0e9dedd0981e9693ebd88f6611db
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOT7t:T6a+rdOOtEvwDpjNh
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
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Detection of Cryptolocker Samples 5 IoCs
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UPX dump on OEP (original entry point) 5 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-14_3ca3fd6947cfb86b9f63ea6a669d85f3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-14_3ca3fd6947cfb86b9f63ea6a669d85f3_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
82KB
MD5935643120d8cef9bee9f73e07b692002
SHA11ef636cad2e3c2905581fbb1ed1d5d4821a11db4
SHA256f439c40737f9683e93e6ca1d5187f6920e1cd26262fb4d403a718e445df4e439
SHA512d871fd0f45466d5b8e1b4cfa47ec1a284d4e0b8de5357bd7dc8bb56d772e72634104c715babf45e15730f6f64af5b8cf812f18f93586e96d7d27e794734ac6df
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB