Analysis
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max time kernel
117s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19-09-2024 05:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe
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Size
37KB
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MD5
f15274d562a66e82a353c57d597e3e6d
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SHA1
f93456c2771ebf6729129b9cc0dcfbc2e78b206c
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SHA256
e0edd389cda1f0bcd6fd736560ddd63156a31ef4618101ae37ce5463b96a4ff4
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SHA512
e5ef1495f564b42f81b1d6cc911917fd28d2aa25a3e49a46b131abf2f3ec92f071ca1ce3504aef18ea71aff268cfb88938a6ed08004bc7091fe47f541056853d
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SSDEEP
768:btB9g/WItCSsAGjX7r3BPOMHocM4vUUOmX:btB9g/xtCSKfxLIcMzUn
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 972 gewos.exe -
Loads dropped DLL 1 IoCs
pid Process 1916 2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language gewos.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1916 2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe 972 gewos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1916 wrote to memory of 972 1916 2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe 30 PID 1916 wrote to memory of 972 1916 2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe 30 PID 1916 wrote to memory of 972 1916 2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe 30 PID 1916 wrote to memory of 972 1916 2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-19_f15274d562a66e82a353c57d597e3e6d_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1916 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
PID:972
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
37KB
MD5d25d74eaa710dab19650994e6c20f213
SHA174c596fcfd3d00a99abf17fbb83da498feb0b210
SHA25683dec8efe7dbb8dd40c1c3747a8f4c0415a8ef6e7f6f64d148bf9ef335019b3a
SHA512deacef6cde87b6167e3635f6ff9207bfc9d5618d123d7af7a363e3056e818bb545736594b651c1ef46da7e903a37531e5b9aa845bd3a2f8b23d9c394cc6ca5f6