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Analysis
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max time kernel
140s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
07/08/2024, 03:21
Behavioral task
behavioral1
Sample
2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe
Resource
win7-20240708-en
General
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Target
2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe
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Size
38KB
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MD5
287c48d0448a967cdaf0c4edeb780803
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SHA1
20c25c5f831d14ef9097545879a05098ebf24850
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SHA256
d1f1ccdc3bbd845f7dd7ed7eba189849081d37092f905a03521d3bf850b655ae
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SHA512
e055ea0fccfb453ada051b53ca50c84c7af39abc553be737d38df1640cde0e44d6085cf7691bcf3dec17862f5504a04ec3d7711712ef6df3231351f937421807
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITH:qDdFJy3QMOtEvwDpjjWMl7TH
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1052 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2552 2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe -
resource yara_rule behavioral1/memory/2552-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x0007000000012118-11.dat upx behavioral1/memory/2552-13-0x0000000001EA0000-0x0000000001EB0000-memory.dmp upx behavioral1/memory/2552-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/1052-27-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 asih.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2552 wrote to memory of 1052 2552 2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe 30 PID 2552 wrote to memory of 1052 2552 2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe 30 PID 2552 wrote to memory of 1052 2552 2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe 30 PID 2552 wrote to memory of 1052 2552 2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552 -
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:1052
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
38KB
MD5469b31f8ebfb1326efe1acf76f665948
SHA16c27ed78721fc2992532e782eb930609db49aeec
SHA25648561ac36b577673a0f8cc1bfabdc92aa893f776ae60d70d32a607cc0cc5041f
SHA512e771cb16c51c779a4ea9c2ff9855ab1744f5a97b6d1855c565f1aa31cf02ee4128c98910f09c152bb6a07e1be0d516c659c92da3c5fdaa2413826cf3ba636a58