Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
29/09/2024, 01:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe
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Size
57KB
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MD5
5ae405bc562c63dc8444c8179a8ab918
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SHA1
a1e493b73a80a6291fb68deda80f49384151efba
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SHA256
96bcd903c92e3df8a77f4d4e1ba515b7427ca664ed77ae3e7eed851772df8d60
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SHA512
24bad37c8498469638b6d026dda745c60edcf04b637d95922ccf01e6a2e4693b7aadb5059e17346c589a8a7be51d9685984816b923797e8037396d69ca50a695
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SSDEEP
1536:V6QFElP6n+gMQMOtEvwDpjyaLccCKdulcrJu9:V6a+pOtEvwDpjv9c
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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation 2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1432 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 asih.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4816 wrote to memory of 1432 4816 2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe 81 PID 4816 wrote to memory of 1432 4816 2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe 81 PID 4816 wrote to memory of 1432 4816 2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-29_5ae405bc562c63dc8444c8179a8ab918_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4816 -
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:1432
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
58KB
MD57db8faa32db10d936a021a4623bd32fe
SHA1df0a4bb8b1629c0d2945f6b6884439158a28746a
SHA25660afd62338cc6dd5e2c1b6d8e28de0c09a4124c47c1110630c666acd8f57bd02
SHA512461783efaa57dfabf405a6a2cabdf8453ec4a713c2022715bcaa033345ae7cbbaf79a3e7a6a755021fc4966a1ed3a4ed9acb57cf79252d5e21457eeb192afe20