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Analysis
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max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
15/03/2024, 23:50
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe
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Size
47KB
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MD5
ddafa08936f838b753d2f1be45e6f14f
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SHA1
57a7f860c5e9b698b49ed43a665c2412670e1f07
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SHA256
ac6376653eab09aa136b7eb02d2196b8b173109d633f31a52e28c3c2175998bd
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SHA512
69ccb51a5a487f8698c3f7eb43641fd181d41bd0cfa615037cf1c55048e828b1205fe5a45e5631b180f2f305f058fb0325fa320774a46e55c1d918ff654fccd6
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SSDEEP
768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvkuD:bgGYcA/53GAA6y37nbrD
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000400000001e980-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation 2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2564 hasfj.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 4044 wrote to memory of 2564 4044 2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe 89 PID 4044 wrote to memory of 2564 4044 2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe 89 PID 4044 wrote to memory of 2564 4044 2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-15_ddafa08936f838b753d2f1be45e6f14f_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4044 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2564
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
48KB
MD526c9513d518116dd27951449c34564a4
SHA1878d6f24804db04499d048d02d32709ddc0e5d82
SHA256e04e2ee324d971c563b8926e9f9baeae2879dd8bb81329c60ca23a87f3e21aef
SHA512910e8ceceb81cb48e1f5b309a051627491fc028556bf6be6d0f72a1efef68c2473915ac7389a5e51ea5004b2ad4762743f389ea327a1fc34b7968fd595c4e3c0