Analysis
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max time kernel
139s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
31/05/2024, 20:34
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe
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Size
39KB
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MD5
7c29b884158846f244b1b881b857fc02
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SHA1
34459857ef81be211c297fe4f2a22170465fe57b
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SHA256
af9d90ed3fb7ec403a278daf1049543cc1613b6ba445400cc9b52cd34d08d60d
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SHA512
2aeb9a3fb9838f0b8aab52e782e9b3d6f2e3804da7251f480fb0b359d6b5e8e4ae5f0d8321cf4dfc2bd07d29575d1c8ae26e68c05d626e4de752fa4809f8f194
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SSDEEP
768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0WZyx:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XP
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000d000000013413-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000d000000013413-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 3048 hurok.exe -
Loads dropped DLL 1 IoCs
pid Process 2880 2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of UnmapMainImage 2 IoCs
pid Process 2880 2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe 3048 hurok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2880 wrote to memory of 3048 2880 2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe 28 PID 2880 wrote to memory of 3048 2880 2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe 28 PID 2880 wrote to memory of 3048 2880 2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe 28 PID 2880 wrote to memory of 3048 2880 2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_7c29b884158846f244b1b881b857fc02_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2880 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:3048
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD5774c8dfe82f73e7da83944c5add84b48
SHA19fbfc370e59bb623eb07d209fabba717980b923e
SHA256327db3342b69f991d9e5f2e5b6ad315939b076dffebd1b6f224924e4eb688441
SHA512c95095a037b3dea621aa252d92fa59d003e8ab6e73bf089fe405c1e10e35d934f478e1e6faf7e197cd052cc97239e96bf1e64487b69b54bfcb2f9617efac37cf