Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
12-02-2024 17:55
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe
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Size
71KB
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MD5
ea9c3c8227d4286253e2b6d57e25124e
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SHA1
7fc79ad3f08f2c4b05c5fa187f2ffa34d59f35a5
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SHA256
e7001dd5372c231c2b1c8cb2b50085ad2efa2b4239bcdb5e3d74bdefe7b22494
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SHA512
715aa15aa92021054ad54ed141331ee0f53b9e944c8b5cd8177d96630027f7ddab559b08900b11fb7d4bc627d4102823615a7b6c13733a31975fc09b69e6a42e
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1D:X6a+SOtEvwDpjBZYvQd2D
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\asih.exe CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\asih.exe CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
Processes:
asih.exepid process 2248 asih.exe -
Loads dropped DLL 1 IoCs
Processes:
2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exepid process 2420 2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
Processes:
2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exedescription pid process target process PID 2420 wrote to memory of 2248 2420 2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe asih.exe PID 2420 wrote to memory of 2248 2420 2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe asih.exe PID 2420 wrote to memory of 2248 2420 2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe asih.exe PID 2420 wrote to memory of 2248 2420 2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe asih.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_ea9c3c8227d4286253e2b6d57e25124e_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2248
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
71KB
MD5478c183fb66885e1cb6caab064defd38
SHA1d8a52e91c33a00e3587d1483c298a1d78d7db5c5
SHA2568d91af178c0b19f33b733e790ca5a52a7b0ec04b23b18a37dff7d7be2ab51ad8
SHA512ad6420412191256c2b432095efa30596c28e80ad26c1ec8409ca26e95a99c283ca45f57bfb862fe2bf3f9183844b39aac693e9c567e262479a7a148483e4a77e