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Analysis
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max time kernel
146s -
max time network
100s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
30/12/2023, 05:42
Static task
static1
Behavioral task
behavioral1
Sample
10418fcd3a60d0bb85e736a326c4e73d.dll
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
10418fcd3a60d0bb85e736a326c4e73d.dll
Resource
win10v2004-20231215-en
General
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Target
10418fcd3a60d0bb85e736a326c4e73d.dll
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Size
21KB
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MD5
10418fcd3a60d0bb85e736a326c4e73d
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SHA1
48fd166534b6a6abdc05cd18aa634095d4b95bad
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SHA256
1c1d79429a64ef7c545ab6e20a59b6ec899e2e153779dd4698a5ef3481349f89
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SHA512
a996942c974704eb6d4fce7ea5a4b31c8768e0ab464d060ebf179f61e7e8bca8ccbd0742d61e39fd496473a42f2c0bdeb586ad098c2c53e877bf186b4139bbe2
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SSDEEP
384:TujjSdgcmF5aAn9QUEK9X3Ybo0CDTi9xbTpRzDap1S:yjjSdpmTaHUP9bJ6l/zDa
Malware Config
Signatures
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Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ChkDisk.lnk rundll32.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ChkDisk.dll rundll32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\autochk = "rundll32.exe C:\\Windows\\system32\\autochk.dll,_IWMPEvents@16" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\autochk = "rundll32.exe C:\\Users\\Admin\\protect.dll,_IWMPEvents@16" rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\autochk.dll rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2564 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4628 wrote to memory of 2564 4628 rundll32.exe 14 PID 4628 wrote to memory of 2564 4628 rundll32.exe 14 PID 4628 wrote to memory of 2564 4628 rundll32.exe 14
Processes
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\10418fcd3a60d0bb85e736a326c4e73d.dll,#11⤵
- Drops startup file
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
PID:2564
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\10418fcd3a60d0bb85e736a326c4e73d.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4628