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
19/09/2024, 04:27
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe
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Size
49KB
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MD5
6255c542acb17cb18f4d53891630bfc4
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SHA1
4340450ac649bc072f82b167b1ad56f994c64348
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SHA256
2a2ac0974cfef0c748e8454b087b3351c6be2af8a423dfb69d5a711894411151
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SHA512
a61397a81c3f85649969a10ee0bef9204d30a7acda29f56962d945705aa3d0d0489f9514783e6138e2b5b8ae9acd6fad4c8c43e83a94ee9139ac7bf7f17e1bc0
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaT6424s:X6QFElP6n+gJBMOtEvwDpjBtET4ls
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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation 2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1260 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 2024-09-19_6255c542acb17cb18f4d53891630bfc4_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 2664 wrote to memory of 1260 2664 2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe 81 PID 2664 wrote to memory of 1260 2664 2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe 81 PID 2664 wrote to memory of 1260 2664 2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-19_6255c542acb17cb18f4d53891630bfc4_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2664 -
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:1260
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD53de874fb0db8ec60d5b14e76b79b373d
SHA186fb41e9ac2f1164a56aa0dd2bc75e6399d82599
SHA256fdd1046d1595f7585c9de85f649005738bdb4ca2f3981b02bc12b42d29e12fad
SHA5128c6ad575ec9331473b6be84032315522cf8376833e2f5547e54d6630f3fda2da12fe79f095798fbc824a2fce45de6eef26fd55ce30280e1775bf9210f2518705