Analysis
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max time kernel
88s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
12/02/2024, 13:49
General
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Target
2024-02-12_a5088628cfde7271543ffa59ddde4b61_cryptolocker.exe
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Size
82KB
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MD5
a5088628cfde7271543ffa59ddde4b61
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SHA1
a6b004f0d3b5e359e5486d18bd4cc6dab5f00250
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SHA256
935f0af00670c2fbad3eadec27f726ec5d9429f5a5f12e620eae66c6dbdeabb3
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SHA512
20a42b871dd25a01d71881a8c3fb02963075aa8727bdf9a20d54a34eb9d4a1edd5c2c18274bdf5772557999d23fbfb8cdc43e6317416f385102d5f7d1731832f
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1kyJS11:zCsanOtEvwDpj/
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 2 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\2024-02-12_a5088628cfde7271543ffa59ddde4b61_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_a5088628cfde7271543ffa59ddde4b61_cryptolocker.exe"1⤵
- Checks computer location settings
- 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⤵
- Checks computer location settings
- 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
82KB
MD56e02d1612924accd58ef902d801c74fc
SHA134f43c5f45a06fc9f55af2ec54b409abd97a94b0
SHA256910a751421f8d4e0a4370f710bd3189a6e7fa627e39790abf4bce35013e00dd8
SHA5127856c78e9da9da375239bd99535635457b708634f5cfda6b2f5f4737e4e4b75a9b3528c1f66f5a9ce03c80931e2fed13b291808747a2347c8d7a37585ce9f714
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Filesize
64KB
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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
24KB
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Filesize
64KB