Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
05-09-2024 12:17
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe
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Size
72KB
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MD5
e21bbca260d8a0b3ea143709aa289f5d
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SHA1
c8d7a97731be23cab845f95f17ff3753a7dd7856
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SHA256
fd196f936bbffa47551bcc8e4ae5adc11f62b6a162a7dcc415a4601226cfeac4
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SHA512
147b32d2087bd0e2534bdfad79f663721ff1a05ea3208f917ed0bda9b87416568688d3c33937f0a1858a82413a374ec98cc1383f6f7694a26c5585bea79b2442
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SSDEEP
1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOlr:DW60sllyWOtEvwDpjwF85y
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2776 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1120 2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_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 2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_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 1120 wrote to memory of 2776 1120 2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe 29 PID 1120 wrote to memory of 2776 1120 2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe 29 PID 1120 wrote to memory of 2776 1120 2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe 29 PID 1120 wrote to memory of 2776 1120 2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120 -
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:2776
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
73KB
MD568033cc601b6aa706f1ed9d9bd98247d
SHA119bf22ce463132b2ddf5b83c9f2afb403eb5d7fc
SHA25655613219deee192abac91e09cf5c3ae7c0e573206d3e723b362d7fe995190bf3
SHA5121d22a80349ceee7a00843c1af060d80cfda2d954be4b84f456653765b754509ed7599b041e49544a55962801f7839fb8bfe197e5b2d73c93b30d315fc5afc69b