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Analysis
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max time kernel
143s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
22/05/2024, 05:56
General
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Target
2024-05-22_82bf3bf2f2fd869a40c4bb3813083caa_cryptolocker.exe
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Size
39KB
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MD5
82bf3bf2f2fd869a40c4bb3813083caa
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SHA1
f8ff0f981f51f6fda40fa67ac4e6e116185c3d22
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SHA256
b82315e0bef4e6b7f74d8882736213b966e1c79740b13e9a2aead6ceb5d521d2
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SHA512
4092845f4737d5435352f3965d46a5a0f9e508b078641bdf62ce92259973d5196e363599302da1bdaa619425c6e2345f3179ba83b7cd0ff35fc15bfc302ea7f3
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBJX:qDdFJy3QMOtEvwDpjjWMl7Td/
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\2024-05-22_82bf3bf2f2fd869a40c4bb3813083caa_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-22_82bf3bf2f2fd869a40c4bb3813083caa_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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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4416 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD564c068cf273b07662326c0dbbaf0a327
SHA170006946e240e007d4bfb11a5b193a360ea648a6
SHA256d92aa0bdffeb74ec8c06e055a1502655ca68a723b55f2d6fed65a152f494ac54
SHA512fc82a2590e10a4d85b801b3a619c3797c17d93aab3b111f7c5765408d38a427515bb5bfa15525d89a507e8885236856e6ca7b5dff5fbfaecff929da003827a7d
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Filesize
64KB
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Filesize
24KB
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Filesize
2.0MB
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Filesize
24KB
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Filesize
64KB
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Filesize
2.0MB
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Filesize
64KB
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Filesize
24KB
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Filesize
2.0MB
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Filesize
64KB
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Filesize
2.0MB