Analysis
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max time kernel
147s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
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submitted
23-02-2024 04:42
General
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Target
2024-02-23_1b94c4bdc8f7458ecaae08806c73eb95_cryptolocker.exe
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Size
99KB
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MD5
1b94c4bdc8f7458ecaae08806c73eb95
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SHA1
527b6438147888bcc26e6ae0e52018fa34d504a0
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SHA256
71feefca8da5f3558fe915cc5c6e490b8463d3334659dd998a2fa4b75d250156
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SHA512
0f75893c882275a1b4ec730ea2df88dcc9dedb57482c04289c465d8de43f8e8d62e264bde88ded73911e978521f444f775d49a78e7cf07385a4a4687c55e3983
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPeOs:AnBdOOtEvwDpj6zq
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
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Detection of Cryptolocker Samples 4 IoCs
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UPX dump on OEP (original entry point) 4 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 4 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\2024-02-23_1b94c4bdc8f7458ecaae08806c73eb95_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-23_1b94c4bdc8f7458ecaae08806c73eb95_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
99KB
MD548f7f6abc1b8f914c5a4deb6ccb0c0b9
SHA10448ecc77a0cd5246036dadc390f9cc2bdf9f8e8
SHA25688bbf54056bce64916ca8e943bdb63048938d3b54d2e591ebe9d30392ed9d790
SHA5123d58b3d9630cf8ec64027231d16a4c1e2226eb961e947f4d1f2aa1336a69d5d96f9c52e7f26c1ff77e653043389a329388edc52be5f6bb5e67995fc43f099e9d
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB