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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
24/01/2024, 03:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe
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Size
61KB
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MD5
573cae1b1b7bf781691d6cf6e8b0963b
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SHA1
108b457f3e3f9486f1566cafdf5a830025329642
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SHA256
6ce637c7791fb0b2fc8939501d5df1062090165665544589df567a721cfc4e7f
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SHA512
8a7f78a65d433caa7b0bdade0231ca0f1641a1e9fd2aaf41a51d6f447eee633e429fca95fb84d0a39b2d150ac5eb6d0b88c2856f58a756446ec06ef3743e3ad2
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SSDEEP
1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzp0oj670hr:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7g
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x00080000000120dc-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x00080000000120dc-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2688 hurok.exe -
Loads dropped DLL 1 IoCs
pid Process 1504 2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_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 1504 2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe 2688 hurok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1504 wrote to memory of 2688 1504 2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe 28 PID 1504 wrote to memory of 2688 1504 2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe 28 PID 1504 wrote to memory of 2688 1504 2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe 28 PID 1504 wrote to memory of 2688 1504 2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-24_573cae1b1b7bf781691d6cf6e8b0963b_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1504 -
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:2688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
61KB
MD5e4674ee4f7800178f8121e635418423a
SHA1e48fbbe705dbdb17299cfa024d9af91489244b3e
SHA256af21e8fd9da72f6f4723660a5d4e01eba60170435237ade2f56dc6f329746167
SHA5120ca0fa9e283e00fd13d055056f3a9a68aacfdca96f037ab40a9ea34510ccba7986483e52a61724bbea9acd6f5deb7e180f07caa09f6140e769d6e9c3c976e944