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Analysis
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max time kernel
120s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
29/09/2024, 11:39
Static task
static1
Behavioral task
behavioral1
Sample
805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe
Resource
win10v2004-20240802-en
General
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Target
805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe
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Size
76KB
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MD5
b23289be2ac2fa11e52bb507939e6130
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SHA1
5e2351e78f3e59010779f6ffe927b83b037d782d
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SHA256
805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97
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SHA512
0815c12763044987124d036ac0ff4dd0c040cb8ea734f7edf143c69c8b9ac3de47a2504bafe4494a9c159909a6cd5154df343a66ffe4ccde8737ebb394e2fe26
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SSDEEP
1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvP3OChhW4dI0h4HCIzhUvTh:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAz
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 1636 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 1636 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.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 805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3596 wrote to memory of 1636 3596 805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe 82 PID 3596 wrote to memory of 1636 3596 805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe 82 PID 3596 wrote to memory of 1636 3596 805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe"C:\Users\Admin\AppData\Local\Temp\805427e8a77b8d47275b0b7642c3020f5360fe54eabd91acb0bfd7a43fe25e97N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3596 -
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:1636
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
76KB
MD50d3787a54f532f933c3d8326bafb1996
SHA143da20ad5fc9ecdfb5be6437d4715f277411d4be
SHA25668b54e79fcb8b4a29949bfd461b09d9f1d1855f1f70fa0dd6eca751c76156549
SHA51207dd68021836121a48aef3bb8f4ff1985700206c709997555f67e443f8c024ff2caea3eeb4b141fcb1e99a399b3d672c062e2cd1858ea5605c537aa182e5eafe