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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
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submitted
03/06/2024, 04:26
General
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Target
2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe
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Size
37KB
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MD5
52373466b7674e49e7b8cfafc00bae34
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SHA1
42946ad853b08372538eaed7bca7c7d6435440a4
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SHA256
711c05bc6ec2b9cef23593d72207307b5edb63ab71351d0063ece0635a2aceba
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SHA512
2c78c5a34a77493451fda92880c845bbf0fffc03df1289c1d078057d961165fffc598c08307f1bb63a71e6e722bba4ce0d6481665d5cadbfac17df5bf6490a6b
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SSDEEP
768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axK3VKLz:qUmnpomddpMOtEvwDpjjaYaQQz
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\2024-06-03_52373466b7674e49e7b8cfafc00bae34_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_52373466b7674e49e7b8cfafc00bae34_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
37KB
MD538ddb2b13f992dcf89181735e0c4f3a5
SHA1902840570b4f2c0b5d36cd77e9be44323329984c
SHA256c0d9e0dc8ab794c3413129c9fc90058918a103c36e3a4d09d539c0c9f91cfc6b
SHA512a870d58c22b7843b7050c00586ba567523ebab52a588925425fe3cf76dc48d6fd648c1c5388304e38a3e2e3fec199efa1519598e4a75e16fd6621313523e0a1e
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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
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Filesize
60KB
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Filesize
24KB
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Filesize
24KB
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Filesize
60KB