Analysis
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max time kernel
148s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
18/07/2023, 12:32
Static task
static1
Behavioral task
behavioral1
Sample
b1236599fb6fed_JC.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
b1236599fb6fed_JC.exe
Resource
win10v2004-20230703-en
General
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Target
b1236599fb6fed_JC.exe
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Size
36KB
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MD5
b1236599fb6fedf08c4430a3b0dcf506
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SHA1
2809c12a4fa758d628182e88ecbd7c4a897d33f2
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SHA256
2c962e6563821a20338e87db5337e79182eeda35aa14fd105ced67b3d8e03676
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SHA512
ce5fe074ee0f76fdf164245b9712f1277b9563d890663277fda3f2f0f777e7bfb2309d28567b4c7a54bcf9627f81f300c636f9c93d7f14d92355ae61a10f124b
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SSDEEP
384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf6XT+72kmGYjBa4GY4:bgX4zYcgTEu6QOaryfjqDlC7rYE4m
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-1-5-21-1043950675-1972537973-2972532878-1000\Control Panel\International\Geo\Nation b1236599fb6fed_JC.exe -
Executes dropped EXE 1 IoCs
pid Process 1420 hasfj.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 4760 wrote to memory of 1420 4760 b1236599fb6fed_JC.exe 86 PID 4760 wrote to memory of 1420 4760 b1236599fb6fed_JC.exe 86 PID 4760 wrote to memory of 1420 4760 b1236599fb6fed_JC.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\b1236599fb6fed_JC.exe"C:\Users\Admin\AppData\Local\Temp\b1236599fb6fed_JC.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:1420
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
36KB
MD5baa8c2d98b2d4b7949fd1078918b1a57
SHA186dbac682be315c2e4ddd51457f3b4aabd9d2102
SHA25600034c5a33dde8c87e3ac23be6cafce3708bff01ca38b422beefd09e29e96efc
SHA512cd26602ed4d34e885cceaa15c6882d356acc7101654d4868b56ed151178b4a56615f5641e04e229e1cac2e3f48cf9c0abd93e235a8d2d753edd0626c7882ede1
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Filesize
36KB
MD5baa8c2d98b2d4b7949fd1078918b1a57
SHA186dbac682be315c2e4ddd51457f3b4aabd9d2102
SHA25600034c5a33dde8c87e3ac23be6cafce3708bff01ca38b422beefd09e29e96efc
SHA512cd26602ed4d34e885cceaa15c6882d356acc7101654d4868b56ed151178b4a56615f5641e04e229e1cac2e3f48cf9c0abd93e235a8d2d753edd0626c7882ede1
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Filesize
36KB
MD5baa8c2d98b2d4b7949fd1078918b1a57
SHA186dbac682be315c2e4ddd51457f3b4aabd9d2102
SHA25600034c5a33dde8c87e3ac23be6cafce3708bff01ca38b422beefd09e29e96efc
SHA512cd26602ed4d34e885cceaa15c6882d356acc7101654d4868b56ed151178b4a56615f5641e04e229e1cac2e3f48cf9c0abd93e235a8d2d753edd0626c7882ede1