Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
27/01/2024, 20:25
General
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Target
2024-01-27_3454a827002a8cfc7f4b008ddeb91751_cryptolocker.exe
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Size
85KB
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MD5
3454a827002a8cfc7f4b008ddeb91751
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SHA1
e7a6ca45886bf65c587db9b0552f75a769faf464
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SHA256
ad318b61fa504a4534d0b74c931823aaba5428fb9f6a91146749dd4d8e4ff822
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SHA512
5a390148984d58eb1b24f42c306a66dfbfa9612b762225d76ff8e0a9fecd2e12cb597a67019ca12d243942d77e84c6d75095249a77722f05b5dd02f3714ff65f
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgMfP:AnBdOOtEvwDpj6z2
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\2024-01-27_3454a827002a8cfc7f4b008ddeb91751_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-27_3454a827002a8cfc7f4b008ddeb91751_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
85KB
MD50ce399f41007205e2567355749261ee2
SHA10a3b23a98d1afe8fda5b5d5373536de0f56802fa
SHA2566a83396a8618c6b85b734556edda32e4c6aafdcaa0bde04cdfdb550157d19bc0
SHA512b05ca368c561ddb373fa4ba609f3367f7bf6d71bf2a52f533e2f1db1412107411cfa54531bf75a19760af4e3b4d64c23140c13b8ced211724482855532bf1f10
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Filesize
60KB
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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