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Analysis
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max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
20/02/2024, 01:00
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe
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Size
71KB
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MD5
f7c37f8878239741d4243f50479158cc
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SHA1
8d3b637a19688ee1ca246385a10d072a12feb179
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SHA256
a8f4150007d3d933b3fcade9ec948c456a4719d2c6d7110e18aaf6346e174317
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SHA512
98ca27ac2c5a4cbb97fe2a16170f9dc98613680d5803b609227fe5c32c33678f22f45d38e178065603c7f7d1bf300cf8a729ebeea579fb12d595bf5b1be14093
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1eSi:X6a+SOtEvwDpjBZYvQd2c
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000c00000001225c-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000c00000001225c-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2084 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2664 2024-02-20_f7c37f8878239741d4243f50479158cc_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
description pid Process procid_target PID 2664 wrote to memory of 2084 2664 2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe 28 PID 2664 wrote to memory of 2084 2664 2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe 28 PID 2664 wrote to memory of 2084 2664 2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe 28 PID 2664 wrote to memory of 2084 2664 2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-20_f7c37f8878239741d4243f50479158cc_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2084
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
72KB
MD5a1a6c6c58c31e2a8e0e23948599143f7
SHA16a2f9fa471548c13d1ae9d4fb95039eadf14623a
SHA2561d110a3b6b230ec8efec4e9081cbbeb53aae47cd21571c45acb29bfc70bf93ba
SHA512a58055850e9c86f239961c9beae70884d718efac41c3fbd38ef2bd0284a9ce04fc7108c34290d87506b1d63fbb0e2f7cb2a74eb6f7d0c95e90a99c05cc301722