Analysis
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max time kernel
120s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19-09-2024 05:37
Static task
static1
Behavioral task
behavioral1
Sample
ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe
Resource
win10v2004-20240802-en
General
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Target
ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe
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Size
43KB
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MD5
c98f757172f48c7a09c12e42439a8780
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SHA1
8b0171bdc6890bb29caf330b11fba21674d77fe7
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SHA256
ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1
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SHA512
b6ca6ec667a53942f224ddc14fb07fa6b76dfec9b96c7444ea54f97965f57db838cdcd5b888094e184576e511ba1c34f98f4565bbf06e1cdeae6859272c41964
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SSDEEP
768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjUvJw3/N:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gi
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 4840 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 4840 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.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 ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4680 wrote to memory of 4840 4680 ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe 82 PID 4680 wrote to memory of 4840 4680 ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe 82 PID 4680 wrote to memory of 4840 4680 ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe"C:\Users\Admin\AppData\Local\Temp\ec07f9896f89019be635ef4c481dd6c7f58fc5a2dcc6699b63797d284ab09ea1N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4680 -
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:4840
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD59afd7b9a577376028997c9d744e67a82
SHA16ce47ad11583f379d404f67f633f768759c153db
SHA256f185bf49e502650937dd23917035ec6e11c12fceada689bf909c18c6edf5b9c6
SHA512e7e9a7ff21f19f61f969fc879e5f26317a8edfce530e5108068edc634a49d23b6fac1c2ba49945e3bab8028961de704cd938a90fc3c6748019143f79b50d4442