Analysis
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max time kernel
147s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
05-09-2024 12:15
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe
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Size
72KB
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MD5
c5541dfaf320ff5c0ed1d9ae20763f35
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SHA1
e793df3128d19ad565686db1628512ebcd345d96
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SHA256
b94208a143d0708b8a046e0c811c4f9e9cd95ccbc4528a51224fe83f8be21be6
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SHA512
247feb12f407fa3ba5f1e4f334b0db5839b6e7ca5b1fd7e27dcf98993eeb167dc1fbe52987a1fa5d01f8f89c86f0af5fefa020d0c923b3d6d07a840352cfabaa
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SSDEEP
1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOl0:DW60sllyWOtEvwDpjwF855
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2744 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2756 2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_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_c5541dfaf320ff5c0ed1d9ae20763f35_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 2756 wrote to memory of 2744 2756 2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe 30 PID 2756 wrote to memory of 2744 2756 2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe 30 PID 2756 wrote to memory of 2744 2756 2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe 30 PID 2756 wrote to memory of 2744 2756 2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-05_c5541dfaf320ff5c0ed1d9ae20763f35_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756 -
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:2744
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
73KB
MD55bc4243ad953320868017ff463fbc7de
SHA187ad57f181f040ad452152b28336d46f4ad6fb3c
SHA256ad8442a2fc574519b5a8b803ab363592f52259b054f183f5616a90a69a689c95
SHA512dbf4ee8aec977fad9ca7fd00a523d637de7eab335581bc8685a626712cdad8c9a97933107edbcd2646385e401fa765a1e5ef1b21a12e17a5f5019ea11ca930a7