Analysis
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max time kernel
164s -
max time network
184s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
05-04-2024 11:42
General
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Target
2024-04-05_35f3743be1effc3252086430d3cbf430_cryptolocker.exe
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Size
50KB
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MD5
35f3743be1effc3252086430d3cbf430
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SHA1
c4b9dc8311d3a2c37d7204668e271a2c9ea09cf0
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SHA256
9bc2681229c50948f3b41a6f3cd428abf67e971e71f753a2cbc714b9df7ccdd4
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SHA512
6906a598eb51fa628c974f4a34856b94e94e4484537ef391f8a3ce32160fc8147738324362012314cd8952e36e7e09722382eadfaba5d0c1b488ff6296bc27b8
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SSDEEP
1536:nP+4zs2cPszL3MOtEvwDpj4Hy7B3g9CWuAxWLQ9:m4Q2ckzIOtEvwDpj4HYG
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
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Detection of Cryptolocker Samples 3 IoCs
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UPX dump on OEP (original entry point) 5 IoCs
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 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 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-05_35f3743be1effc3252086430d3cbf430_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-05_35f3743be1effc3252086430d3cbf430_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.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
50KB
MD54eb5d0ddab8e3a8db4434beb3d1f9b90
SHA153b7d9f19d67d0db3fff2a7beca2f6cc255b222a
SHA256484b38874c059ec04df8499f017719eed218938adc8f8343ed96fb1512659b47
SHA5127ae633e9ab2bce4c38b8a52d26aa0489429e92fb392e7f184bed2302fa036aaddc31bc3802729b8677800f2e2825695123b4da6b231a5f56566d7883bccc4a6d
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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
64KB