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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
01/09/2024, 07:58
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe
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Size
47KB
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MD5
65d5e61ee4786dcd28a82d531892b059
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SHA1
b8356f0dc96def9c66b41b7c931522ecccf08df6
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SHA256
b08dc72fbb6fae1e086e5b4255c554e12a11768794b3bc4215fc1138909c62f1
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SHA512
5574471e00036012fd3e8c4ed830ea7542abbb6e4a531006bd301851510f14e017580f81a29ed2aeaf45b03d81aa5124a5d925921a0a19de5fb8363cb9bee48c
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SSDEEP
768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPlAR:P6QFElP6k+MRQMOtEvwDpjBQpVX8AR
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 2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3060 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 2024-09-01_65d5e61ee4786dcd28a82d531892b059_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 380 wrote to memory of 3060 380 2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe 86 PID 380 wrote to memory of 3060 380 2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe 86 PID 380 wrote to memory of 3060 380 2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-01_65d5e61ee4786dcd28a82d531892b059_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:380 -
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:3060
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
48KB
MD5c1276bf1a58702993133a6c85a359d1a
SHA1d58cd2ab36d42e9d7d76557ada912fb84121fbee
SHA2563ace521f60e3f4b37ab945c28c0049b146aff35844ab646d5ac9414e66320b5b
SHA512db648de9cff22c2f3172cb7ee919eadf872a709427eda6ae89cc5ae32f5b53d72136a67fba550d54c96366817f0bec4fd799dd1e0de250215438af87da930f89