Analysis
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max time kernel
119s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09/11/2024, 21:42
Static task
static1
Behavioral task
behavioral1
Sample
77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe
Resource
win10v2004-20241007-en
General
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Target
77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe
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Size
42KB
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MD5
c6781d400fb8977f034676aea440f1f0
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SHA1
1da8973ba1337db0b19ec8f837168a351d4349a2
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SHA256
77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312a
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SHA512
d890b2ccf65955b9405ce15a7a804181b2c96de5620ce72a006f8baac0241db10e090a46341d6bae3b505ca0b4fb281db52eaca893ae97382ccae124a737519b
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SSDEEP
768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6I:e6q10k0EFjed6rqJ+6vghzwYu7vih9G0
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 4480 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 4480 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\HidePlugin.dll microsofthelp.exe File created C:\Windows\microsofthelp.exe 77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe -
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 77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1864 wrote to memory of 4480 1864 77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe 83 PID 1864 wrote to memory of 4480 1864 77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe 83 PID 1864 wrote to memory of 4480 1864 77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe"C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1864 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4480
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD567a945a414391d3d79212300849e6806
SHA10e14cc0ee7c2339046bca2a8a493b02813084f13
SHA25650274f2a93dc2116f59a89caf7bb5566161060171de81fd8062197a5c8a5dbd1
SHA51236e0b913e14aeec3428873197d2ff8cdd958c8d51c0084d10cc163ffbba65808297281cf7958f20aca33e77a1e9c3fbdfdce029721e93701b0f3773d46657205