Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
14/02/2024, 13:47
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe
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Size
40KB
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MD5
8bdfc9816218f3700a83386a3cc3f7e1
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SHA1
ec8726ada3e8feb001e04fc6c4857fb97ab62464
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SHA256
035183d8c336082843ba0871d51107530523294ef2713d1bdc71ac9a2647196d
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SHA512
7a570a1c3243f0f57821abdefd48986fdd9e6e617ebb6ba36e9a5b60c7675feeb8e7f6c0351e2a140989a749dd64864a242e6cecb94b490afeb2f295d560c78d
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SSDEEP
768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqJzY:bxNrC7kYo1Fxf3s05rwxbFSc
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000014825-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2516 pissa.exe -
Loads dropped DLL 1 IoCs
pid Process 3048 2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3048 wrote to memory of 2516 3048 2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe 28 PID 3048 wrote to memory of 2516 3048 2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe 28 PID 3048 wrote to memory of 2516 3048 2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe 28 PID 3048 wrote to memory of 2516 3048 2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-14_8bdfc9816218f3700a83386a3cc3f7e1_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Users\Admin\AppData\Local\Temp\pissa.exe"C:\Users\Admin\AppData\Local\Temp\pissa.exe"2⤵
- Executes dropped EXE
PID:2516
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD52961743ff59b9b752af8a1ae3ae45e4b
SHA19fea4eae4659a4ddb58d4db3831de4deec19bfdb
SHA2566f0f2d4f49dd0f35ea1fe6921d24bcf65da9d3a99c56cb3451dad978ff6335ac
SHA5123d4e1c222ffd0febde92087beff1a8045391960796f5a47051784409a601e90d2af656f77ffb90a53075f5bc7ba2318c86e5935f2eee201ea7e6a575bcc9170e