Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05-09-2024 12:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe
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Size
66KB
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MD5
e05d54f05f1bff0e264b11ff6417a238
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SHA1
e9151e5b7ae23bc5a570dae0150253c759015d97
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SHA256
33687c6569c08977e659c179daf2be495890d87670d0d4eb96f57be9cf9109fc
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SHA512
3edd1ad1db772b21ce97508d355004577c80e15d2982f8ccbfb3cf5a8509953730428920d0ef67a6b1e55b48015858992b635533316a887bd9634dc09ea12180
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsis:BbdDmjr+OtEvwDpjM8N
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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation 2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 5028 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 2024-09-05_e05d54f05f1bff0e264b11ff6417a238_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 1080 wrote to memory of 5028 1080 2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe 85 PID 1080 wrote to memory of 5028 1080 2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe 85 PID 1080 wrote to memory of 5028 1080 2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-05_e05d54f05f1bff0e264b11ff6417a238_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1080 -
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:5028
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
66KB
MD58a9aef262573d219ccb2c79956984520
SHA1e809d536d79dfb290ce6e685e21a0d19a4972c79
SHA25620bb100098e2a7b939637d71833b06e5acdf6a53d3ada1878a539f37dd03e9a5
SHA512612d2508b2600652ec5a173b20d03f8d5542507f3e4e9bfe9c94660a0f19c5517285dd052adcb86c64adecb1db03b0bef0830e1a273a11b43e29159efe256fe4