Analysis
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max time kernel
134s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
25/08/2024, 06:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe
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Size
55KB
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MD5
7b3b2d2e824945c21ae8e2d2e804a6c5
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SHA1
b4d4fe03f17955eec3710472bd8600839676da65
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SHA256
3114551ccb54f2f2c60b37b82e7b3bdad6e4f96c281a812e38aedc2dbc7e1c4f
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SHA512
71cd5adc707e3b42d77aa46cf305defd7d81b24995812d1e6111cd637b8f5b728e822f6580f369e5230cf92708f3ab2bc003243866699b8a95292a7f484ba310
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaTIw7:X6QFElP6n+gJBMOtEvwDpjBtExmlV
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1736 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2528 2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_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 2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2528 wrote to memory of 1736 2528 2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe 30 PID 2528 wrote to memory of 1736 2528 2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe 30 PID 2528 wrote to memory of 1736 2528 2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe 30 PID 2528 wrote to memory of 1736 2528 2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-25_7b3b2d2e824945c21ae8e2d2e804a6c5_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1736
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
55KB
MD584acb281b9883aaca2a91d6f8b5e98ad
SHA13f4907d2f4c496367ffcfefc374a2ed8ab721c8d
SHA25645f964e943a1f711187d452dcfb3df7bd5302a3de86a748441449e0097352e85
SHA5122ef534d59e6e442720f4c111677fe021eeb6c18850403a8ed0a4cf315d947d0abd9b4613fa52aaadd2f084f85f7fc5c756415a5e3f5262f8807145486d63d173