Analysis
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max time kernel
99s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
07/01/2024, 12:19
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe
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Size
46KB
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MD5
fc9da26f7648a6d76d924e72c1ff8bc3
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SHA1
2267ad12712a52796147561f4f8525f0e37e35c7
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SHA256
62477ebe654244e051ce840d459d9737fced19d50b589bb6a953cb04ea7a580c
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SHA512
f1bac4dd0a2fbcdfffcd0ced15d6a141257db3e761d77facc4a939340780b2f92b45899d0b71d5f0179effadf4b97e7270584db6310e89e93056a52adda1ca87
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SSDEEP
768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPxyV4tFVgt:bIDOw9a0Dwo3P1ojvUSD4PRtFVgt
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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation 2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 800 lossy.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5072 wrote to memory of 800 5072 2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe 47 PID 5072 wrote to memory of 800 5072 2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe 47 PID 5072 wrote to memory of 800 5072 2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe 47
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-06_fc9da26f7648a6d76d924e72c1ff8bc3_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5072 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:800
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD5cb3033c15be89111c91b19a40c58e8b6
SHA1e970edc9f4c33745ef669ca38e395f740b696dc0
SHA256ec4ecbc751521018c5996c5a8416d3baf31469ec64412c578ac866ccf96eacfe
SHA512d272925f3be45726318ba9f63926bd1e8be430400aee9103c8f7fed7e87a5681bb3b3392950193f57a7e82838267d88d78522e9e7af421a9252ffd87e84179a0