Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
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submitted
20-04-2024 07:33
General
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Target
2024-04-20_abc4b2410bfe0a19fa5089b4bcc8dd13_cryptolocker.exe
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Size
100KB
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MD5
abc4b2410bfe0a19fa5089b4bcc8dd13
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SHA1
a975424bff3a42184fc0a2c398f3f46660cc4af5
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SHA256
d9e53e88b1602297f7a675da861a3872ec95ea2eb070b2c5783e5a0ae1546062
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SHA512
45ea18b035ce4d55ecd42b6064bf0efd575fc676e77b971fac0226d72af7f287b717b4cb2d3a0b5129d40f4b01a3d668a8351ce08bcbf7b1adcb82f6fb602b80
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPeBT:AnBdOOtEvwDpj6zc
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\2024-04-20_abc4b2410bfe0a19fa5089b4bcc8dd13_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-20_abc4b2410bfe0a19fa5089b4bcc8dd13_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
101KB
MD538836b3f1407e3c16290fdf6b6859fa2
SHA151754d16e5021f7c1864000e4ef56e28d262ed20
SHA256739cc7508452e8e118d2d26db1e107c6bd65c3be69aaef73c0678d75b64c7766
SHA51250b1a6a429180223a88b0aa1c600d81303147eb1ca4b01e20710ea2a1e23826c095ee6a80d2c81678702b108eec1b76e7135f55d66f8d6728d8f2604f693a0af
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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