Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250619-en -
resource tags
arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system -
submitted
02/07/2025, 19:23
Static task
static1
Behavioral task
behavioral1
Sample
2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe
Resource
win10v2004-20250619-en
General
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Target
2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe
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Size
44KB
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MD5
12604523bf210e6b6662e53b1164d6fa
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SHA1
f02842222e95ec346a3a194683dac23631c8d4c2
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SHA256
b4e3181b33b2b9ca785b11107dc973e6c5c98a233149a0354d28fe36fbba61e5
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SHA512
d7a59730ad6d7ac7808f53ffe9da2464b2c9405b829be3001a330b8908ad06e84fac224abc2111f9205beb46fe4b661f7a69d59e03bf458653789e80e5f98abd
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SSDEEP
768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUurU:vj+jsMQMOtEvwDpj5Hczer5ixQ
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-1-5-21-4097847965-469305640-2969917343-1000\Control Panel\International\Geo\Nation 2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe -
Executes dropped EXE 1 IoCs
pid Process 3976 misid.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 2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5552 wrote to memory of 3976 5552 2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe 86 PID 5552 wrote to memory of 3976 5552 2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe 86 PID 5552 wrote to memory of 3976 5552 2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2025-07-02_12604523bf210e6b6662e53b1164d6fa_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5552 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3976
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
44KB
MD5acb8fcf2b9ca74b6483378d342d49f65
SHA1e3f61a7ba2a9de005b0a26a97815717377d377cc
SHA2568997ff566761d5878cfb0266a9c814b44aae64acf1221dc0619357deaa3a0e3b
SHA51231a72f6162825abc742cc02bc6f9609593aa912cdcf4efe97314747468a0c2d5e831dfcfe7e40f9080ae6e73525a0dd3c6bd66891aa4e1ceade11a02c43a1990