Analysis
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max time kernel
149s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
22-05-2024 23:25
Static task
static1
Behavioral task
behavioral1
Sample
79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe
Resource
win10v2004-20240426-en
General
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Target
79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe
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Size
29KB
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MD5
8a5abe3d7cc1b686eafb1dd1ed19617f
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SHA1
4bf726baf3e9862ea39e2b7c806886c91ecf089b
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SHA256
79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c
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SHA512
2f5c30474b61657eb57b469899e046882ee6b1cbee6b7dfbea5ae2abc8b4204f2344e83ec23e4ec0c6054f78f125d056779c571982b1c309aa9ffc90546d69d5
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SSDEEP
768:/qPJtUA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKhJJhgcq:/q0A6C1VqaqhtgVRNToV7TtRu8rM0wY1
Malware Config
Signatures
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Deletes itself 1 IoCs
Processes:
microsofthelp.exepid process 2908 microsofthelp.exe -
Executes dropped EXE 1 IoCs
Processes:
microsofthelp.exepid process 2908 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe -
Drops file in Windows directory 1 IoCs
Processes:
79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exedescription ioc process File created C:\Windows\microsofthelp.exe 79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exedescription pid process target process PID 292 wrote to memory of 2908 292 79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe microsofthelp.exe PID 292 wrote to memory of 2908 292 79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe microsofthelp.exe PID 292 wrote to memory of 2908 292 79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe microsofthelp.exe PID 292 wrote to memory of 2908 292 79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe microsofthelp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe"C:\Users\Admin\AppData\Local\Temp\79a0d91fcc4d2bffa5c7e2be9f5ff6eaff64b8f3b515385ee3c463df3dade65c.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:292 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
PID:2908
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD509eb00fa8135fffa2e214a103de34b6d
SHA19aaefdd1100bb415146cc1ae802a4ec39d884173
SHA256bc32907b59a9e3f627373bff94326617497d390ea364ff35e75d481881a371d3
SHA512ba3ddba9302419be8e70c3f66c69f853a696215602ee1bfa69108b922e81d913cee8ec898275dfc2a96660236399094f0e2bf9fa772d683b296c2c673a1ab4c9