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
18/09/2024, 19:17
Static task
static1
Behavioral task
behavioral1
Sample
3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe
Resource
win10v2004-20240802-en
General
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Target
3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe
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Size
64KB
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MD5
f7fbd3307e024beafec33a9a9e626c50
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SHA1
4f8f45d507e21568fca0f7759018d840d674c207
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SHA256
3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75
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SHA512
2fd56397c43124a53dc0048387034870608bffe6b56213e818e42f4fc84cb1e97d61d05423341ebd574e5f5ca7a51591ffe142c22d84655ce6c1a231948b1301
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SSDEEP
1536:lAo0ej2d6rnJwwvlKlIUBP6v8tvGE9UHrSdghj8bvHRIkhbUIchUh80mhDoOho8r:lAo1lOwvlKlXBP6v8tvGE9UHrSdghj8c
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2000 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 2000 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.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 3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5112 wrote to memory of 2000 5112 3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe 82 PID 5112 wrote to memory of 2000 5112 3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe 82 PID 5112 wrote to memory of 2000 5112 3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe"C:\Users\Admin\AppData\Local\Temp\3d16cfbe65c53bf42368e937ed5f707f55b67d0379297fd824e735601a3abd75N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5112 -
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:2000
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
65KB
MD5ddbc9af7dd470505ce44884cd423d05e
SHA133ce99f9bae20ccdc138ede7d9cf97ff30d0f83f
SHA256e6769b5a2f8577887ef096d9966bf3f4151b2d647d399d082bc1597cbd5c78f0
SHA5127c6965e97a1a5d4a045a1d09802f722040b7592c2a9c8fde177bf81d3aa9296b16e9a051aafc58ccceea0d4ee2778ee2a7398c4e118a1e05f4b5192149138ccd