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Analysis
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max time kernel
1s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
10/01/2024, 05:54
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe
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Size
65KB
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MD5
5f92f531d14c840738a94684268f8e9a
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SHA1
4182499cb9714096a5b996e4401a2f51860d0212
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SHA256
05ef4ca3336ea5721a745ab2c0c88b2f2bb4b160de21dda3481d2419204a8db3
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SHA512
38144eef1a06b6d8f226add12b53568e25f43c6808c8e2ca18c2ba123f0a9a37f6830bd046e53ff4459907a121393e33676e85e96fed03a0ef7882a33801dda3
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SSDEEP
1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKu:DW60sllyWOtEvwDpjwF85P
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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation 2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4760 asih.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 4324 wrote to memory of 4760 4324 2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe 28 PID 4324 wrote to memory of 4760 4324 2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe 28 PID 4324 wrote to memory of 4760 4324 2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-09_5f92f531d14c840738a94684268f8e9a_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4324 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:4760
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
65KB
MD556ae096e63b7158d795d9709bbbe8148
SHA10c5267d4fdc08395a88be8e753837b55105e3863
SHA25691485be2cb5668233c7051bc5f7c93c8753553e638710e76cf996c386edb41b3
SHA512c2917fdff22c2a727984111e0c43ab44bba25fb08d713c6ed41520d7389fe5bb0aed8468ca86e7f2dcc9fdeb00033921f346b98eaa48236d533623f1145d0964