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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
18/02/2024, 18:50
General
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Target
2024-02-18_cdd9f7e4b81395f2a94d0cb8f41fc2cc_cryptolocker.exe
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Size
81KB
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MD5
cdd9f7e4b81395f2a94d0cb8f41fc2cc
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SHA1
042985b5bd2a7c75cfb59f8da5e709965626d0ed
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SHA256
336b51351e40b264f30aa26255885c08e5bd084cb8d2e79d82abbffbcd7b78bf
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SHA512
c852a669f8e10179f2eb9296727d6a1a8ee6965d587d627209ac2ba4ed726cab4d28f466bbfbefec5d67fda9fbd4535156da0dd8c5ebc4611c6c6948b4f27e6e
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SSDEEP
1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdeSc:T6a+rdOOtEvwDpjNtI
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\2024-02-18_cdd9f7e4b81395f2a94d0cb8f41fc2cc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-18_cdd9f7e4b81395f2a94d0cb8f41fc2cc_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
81KB
MD5295bb12b507b45cae252c61ccb315b22
SHA159cc0c50846f17aae6a191983159b721860ad9bd
SHA2560964dedbcc19763ac320baac52762e9733370f1bb72d0aaabee89b021981429a
SHA512c9fec602878ce982dcee1ac62936d6c1380e7086b9e62c5f5ba5a1ad868def4a7c580db269636e8b2da5c47ca322a3dcf98a1f01441fa986469a9bf07b1e7b55
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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