Analysis
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max time kernel
119s -
max time network
98s -
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, 20:30
Static task
static1
Behavioral task
behavioral1
Sample
36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe
Resource
win10v2004-20241007-en
General
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Target
36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe
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Size
42KB
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MD5
16366b1a5bd005141a80423b285656d0
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SHA1
ad0da01f492d468e38b49d88c763cec2e138b5bf
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SHA256
36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031e
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SHA512
190b3e5d6590ca078162fc0f79fdb9b0c9c3bc968a18d9be1119aae7df5fa261138ddb038a3081e95e6eace9870c969d72ef66220f0031e535ceccc2ae97fd4e
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SSDEEP
768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IT:e6q10k0EFjed6rqJ+6vghzwYu7vih9G/
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 4940 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 4940 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe File created C:\Windows\HidePlugin.dll microsofthelp.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 36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2936 wrote to memory of 4940 2936 36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe 83 PID 2936 wrote to memory of 4940 2936 36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe 83 PID 2936 wrote to memory of 4940 2936 36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe"C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936 -
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:4940
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
42KB
MD5721c0b113bb089c810525a3815b7a2ee
SHA16eaf4d5391ee5c9a7a908788da35889de64fbbd8
SHA25666a5b03e74156601b4ceadac6f36ae14d4ea65b868fe74548a79fa9655dd510b
SHA512636813215d0aeeb486c902b562abddd8099045b890e2bdeabd70753e0d2901db514994b04a023c985c299c98eba025dcdc47330ad3d6a450c207255f11abe79e