Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
01/06/2024, 18:27
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe
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Size
41KB
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MD5
654a19a4419aeeecc49a7d91571a831a
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SHA1
c0aec8ed1b2989a1130faa83427dc0ff04a6ec55
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SHA256
8106e9d46adfa44d210a78e9018f522237ecd8186918c38bb9c9c47bc0e81bec
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SHA512
2171cb221203976636bae13dae51c7ffd0b717ad458783f3d22f330a22e08a43d9502fc70314d8d5607438be4498f8c3b3e4c4d3602201f5afb523d13599d26b
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SSDEEP
768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnCH:bA6YcA/X6G0W143QI
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0008000000023442-12.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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation 2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 228 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 4012 wrote to memory of 228 4012 2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe 85 PID 4012 wrote to memory of 228 4012 2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe 85 PID 4012 wrote to memory of 228 4012 2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4012 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:228
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD55bbc1e4c3b9e6c5dca872e889a71ecec
SHA1e4f484d182e0d312a34ae2e6e1a1a5172e992f1f
SHA256d2d8d493d9b3e8e5dc625eddb1e90063d9de9206933f033c1407d35f7d0c0966
SHA5124b0ae27ec596eaf0080f2ddf4db470c91ffb1ba50a9ef5385d1953d9e5d6299db061df6f95baee8bab9ee50a932d5e36d1c60e070e8713b5c6ef8947a2f4e8ab