Analysis
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max time kernel
119s -
max time network
95s -
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, 22:18
Static task
static1
Behavioral task
behavioral1
Sample
786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe
Resource
win10v2004-20241007-en
General
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Target
786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe
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Size
28KB
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MD5
fc58977cbf1ab730a5752f96b82250d0
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SHA1
dd3c3ca3882ff7364052c7cf01cdb1b7e19a9ae8
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SHA256
786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375
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SHA512
b539dc41606a00dbd0852a65aa3e30a15605bcac83a61cc23aa0c7cf7b94ddef7912d12475fb0aa405293136f44352129e922d4ce9924582622c2a59d3ca81e7
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SSDEEP
768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wk7IEhGOrhuH6SmEdtjHihnv9IPIKHZ:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wkW
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 3820 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 3820 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.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 microsofthelp.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1000 wrote to memory of 3820 1000 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe 83 PID 1000 wrote to memory of 3820 1000 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe 83 PID 1000 wrote to memory of 3820 1000 786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe"C:\Users\Admin\AppData\Local\Temp\786e6873b020f7b3cf9b3ceecb7f102b9b36395afaf20953477659e3eea4b375N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1000 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3820
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD552049498a223916b0cabf5d129451b06
SHA19263ae2d0a8551f28f431cd2c8523ed4802552e4
SHA256da4b7819cd7b7d6644f99084b92eb270fcac4f496f3144fe0068b66dc60419e5
SHA5129ecbf4635037362d7c77876385c8e5a40fcf05d4b51e3b4696063cf2261bb3e8734befd137cef2d0a1d7e215821e8d79419855b15f62642b4c2ec38cdf447fd3