Analysis
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max time kernel
148s -
max time network
152s -
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, 03:41
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe
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Size
35KB
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MD5
d6293a7aeab104804a725fca2a4164bd
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SHA1
6e6b83f4c064af88f6b849d20d2069bb0433a7d9
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SHA256
2b5e9b68c3ebd0cdc6063bf571eecd55c52bf95d9167dc446675edb18c0c5aad
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SHA512
4b72244f38da7e2f7f3c94fc0aad6e66b8daf90d87188e5eec3b17892ca85a1d78cbdb2db01e9c5a624e38a3cfec0300294b5153796cca227edfee6de699b1f5
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SSDEEP
768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5k:V6QFElP6n+gMQMOtEvwDpjyaW
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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4664 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_d6293a7aeab104804a725fca2a4164bd_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 3108 wrote to memory of 4664 3108 2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe 82 PID 3108 wrote to memory of 4664 3108 2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe 82 PID 3108 wrote to memory of 4664 3108 2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-19_d6293a7aeab104804a725fca2a4164bd_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3108 -
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:4664
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
36KB
MD52c85fe115f2eb89fb0e2f8d86cabdfd9
SHA1811a857305f47bd1e481ffb923d9a461ed6149e5
SHA256f66f52b3cc0b20d8fdd6aff89f9946bb4e4b96a7c895f197ee189520c7b135ed
SHA51273f8fba8522069729f0a07ba86e6dcd06e11c1b80444c61f21468996316db205e2631f270c65547e1adc5f96f5ee22872e5ed1f03563285a1ec601ca3e9e3a1c