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Analysis
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max time kernel
150s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
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submitted
19/04/2024, 04:10
General
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Target
2024-04-19_850659d463094b653a5447beae0f6b91_cryptolocker.exe
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Size
68KB
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MD5
850659d463094b653a5447beae0f6b91
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SHA1
cd865a5bf64e8d713bfe0a92c84ceaedd1de6fba
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SHA256
3dd59d0cd59eb8aeb9d2e3b047f22749681e45ae0e4018fd04bf068183c2d90c
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SHA512
540fc63a0e27f7d8c4c1506fbcb38cdb7797479094c65adaeef0b121f519e9d319f278c2b0e1e97b978fbbbc978d4e88d30384dc7a16d7120fbb84b63d96c3ba
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SSDEEP
768:quVbxjgQNQXtckstOOtEvwDpjAaDOK6PsED3VK2+ZtyOjgO4r9vFAg2rq6W1A1PZ:quJu9cvMOtEvwDpjWYTjipvF2bx1PQAZ
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\2024-04-19_850659d463094b653a5447beae0f6b91_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-19_850659d463094b653a5447beae0f6b91_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=3932 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
68KB
MD5862112f14a280b0e04207da658822ce5
SHA1f2e2e5f20482d8f9327bf758b04bd6e19397de36
SHA2560ee2cc3baab880f277727598777e80e91419eb40eaf2cc53b3047eac4c0722e1
SHA512aa6e4a10e601bf8438af94af635cc9f8ab6b97763bd4a079728bf46c3bd7d878769f2dfa8a5a68248ac4cc403e8a27604281971667964bee801afc3af8a4cb49
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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