Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-10-2024 08:03
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe
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Size
54KB
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MD5
c1f82e466751950299d68c736ba87a06
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SHA1
59c85e0eade514cb21d7fef0fdff6a965ac40784
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SHA256
992e2cc14a84687dff3eeebce4b71e25e16f854eb0915e7780e9efd87d1c16d8
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SHA512
20a88b1499cfafb115c5d6c7b1f67d719c713ab879ec12fae8ade9462c6c499b78507315e0dd5b9583aed9f5dd774ca5b86c62b329c76dca74ff5f2658adb243
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61C:BbdDmjr+OtEvwDpjMw
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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3512 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 2024-10-12_c1f82e466751950299d68c736ba87a06_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 2816 wrote to memory of 3512 2816 2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe 85 PID 2816 wrote to memory of 3512 2816 2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe 85 PID 2816 wrote to memory of 3512 2816 2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-12_c1f82e466751950299d68c736ba87a06_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816 -
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:3512
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
54KB
MD577ea90c9dddd231c77ba98f4cbc44258
SHA1b8a1a9b8dd114b76687a3a401eb8348fb9398399
SHA25624ace2146961d9802dec9a14c44ae8a6fa3e52099a90d96d31cf794d49d4824a
SHA512db9738529144b0eeaef19a7089141d1457de401d53571ef39ab451f49b89d9d0e38eabc77095a5591ca52bb66feccc242de9cf3884939584bc1cb10a49224f91