Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20/11/2024, 02:46
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe
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Size
55KB
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MD5
4463c05166da25f3bf8ec52e5998d0bb
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SHA1
9ed7cc5e94d2adad60f621c53d43e7dab5dbc6e1
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SHA256
9c32a1b22e1a984b9360b63c507226a99327fa05501204c006fb16b06338d05d
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SHA512
d9ab52cd7c623f4cee0fc64729e6a8e71aaf783d639692c4f7c53212d86819a8f2f40b55428bb3e36f70cae75760ff2d33adf3c92be2a487b4fa568d84b166e0
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaTIM:X6QFElP6n+gJBMOtEvwDpjBtExmln
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation 2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 5008 asih.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 2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3108 wrote to memory of 5008 3108 2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe 83 PID 3108 wrote to memory of 5008 3108 2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe 83 PID 3108 wrote to memory of 5008 3108 2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-20_4463c05166da25f3bf8ec52e5998d0bb_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3108 -
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:5008
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
55KB
MD5a52e9980446ebb194effb6fe18f9554b
SHA1605e1b44e5ada3adf707f5d59319179675c82eff
SHA25621cf93cf3df61773bbcab1714a9ac5c7f54568e7026f38cb1e5904e0d7d3db02
SHA5126a1dc05af98b16f3c15c1af7f033e5f1c91da4be18f942a44858af142f8dc229bc898139dc99083d8d4ba60593ac2bab78f577af3de3c865db14605b0958f2e9