Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
09/06/2024, 07:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe
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Size
33KB
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MD5
9aaa67ee5a7c9757141baddcd83803f7
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SHA1
268a8334fee7871ca2cdd39c42b1d025ac2d34b2
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SHA256
9ec80b8f4f6bc7e10bfcc0888d6bb98c8d700062d0adf86093d246fd72629ed6
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SHA512
f219ab5648bde657a79411f18f8dfc55df1cc15f4f13f303de2c5742789f52f2b4cc6e32834e1dfc8e2ce28e6f0fde5b8d477f3f261d86b9983124ec398bda62
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SSDEEP
384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v7R:bAvJCYOOvbRPDEgXRcJ1
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023537-12.dat CryptoLocker_rule2 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation 2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 5020 demka.exe -
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
description pid Process procid_target PID 1072 wrote to memory of 5020 1072 2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe 89 PID 1072 wrote to memory of 5020 1072 2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe 89 PID 1072 wrote to memory of 5020 1072 2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-09_9aaa67ee5a7c9757141baddcd83803f7_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Executes dropped EXE
PID:5020
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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 --field-trial-handle=3144,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4292 /prefetch:81⤵PID:3444
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
33KB
MD5dcfb797059c3f37f49599871a7fe708b
SHA14316a81855921a7134f92617dd5d1332ceb66c2e
SHA2560080afed6cbcc88510f3514ac98cdb436e95231a65903d45ce72d493d9479c5c
SHA512d9d3d3ab00765074f144e595dac445a11b964b6a7045bdd56b69ef24dd0d91c684dc5bfc0875f4e48b1e3229743d5b19c4188aa90232089eb4a962ef67f13a62