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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
28/06/2024, 15:49
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe
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Size
45KB
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MD5
18e76735eb2846527c0984a4a5f4152d
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SHA1
05b354da68d841f6130d258c8d0428d6ed6aa23b
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SHA256
5c1e654e451906fff72a2445100838a82b8141239b89a2052193867df253d5bb
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SHA512
a0b9f1726a4957af8e9eb0bb653d99c8638a81704860f710a6e7f34ddc3a8d4fe5ef5554abf51da0bfb521ca2b3184feb17b4c278fcde26d5a8cd8a9aea53180
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SSDEEP
768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zI:bF/y2lFizbR9XwzI
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000500000000b309-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2984 rewok.exe -
Loads dropped DLL 1 IoCs
pid Process 3036 2024-06-28_18e76735eb2846527c0984a4a5f4152d_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 3036 2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe 2984 rewok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3036 wrote to memory of 2984 3036 2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe 28 PID 3036 wrote to memory of 2984 3036 2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe 28 PID 3036 wrote to memory of 2984 3036 2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe 28 PID 3036 wrote to memory of 2984 3036 2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-28_18e76735eb2846527c0984a4a5f4152d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3036 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2984
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD5084e399b231c9fbb2116f7e9a452a599
SHA155a7e1a317889c104bee62c8fc4fd231d85c9291
SHA256d2c87d98f659193eb77c157f1878c52046aea7f8756befd29a05478b05b305c4
SHA5122ec0a13312e3ecfb98e8c3c0d5b3f85cae1fef4fb27bb910bc426fae0e0140274126930e01e6f9baf252cc02086fa720773696d944ad2fa564b1d33887cee401