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Analysis
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max time kernel
137s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
04/05/2023, 18:40
Static task
static1
Behavioral task
behavioral1
Sample
Notes.md
Resource
win7-20230220-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
Notes.md
Resource
win10v2004-20230220-en
3 signatures
150 seconds
General
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Target
Notes.md
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Size
1B
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MD5
68b329da9893e34099c7d8ad5cb9c940
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SHA1
adc83b19e793491b1c6ea0fd8b46cd9f32e592fc
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SHA256
01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b
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SHA512
be688838ca8686e5c90689bf2ab585cef1137c999b48c70b92f67a5c34dc15697b5d11c982ed6d71be1e1e7f7b4e0733884aa97c3f7a339a8ed03577cf74be09
Score
3/10
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 10 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\.md\ = "md_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\md_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\md_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\md_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\md_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\.md rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\md_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\md_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1716 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1716 AcroRd32.exe 1716 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1732 wrote to memory of 1356 1732 cmd.exe 29 PID 1732 wrote to memory of 1356 1732 cmd.exe 29 PID 1732 wrote to memory of 1356 1732 cmd.exe 29 PID 1356 wrote to memory of 1716 1356 rundll32.exe 30 PID 1356 wrote to memory of 1716 1356 rundll32.exe 30 PID 1356 wrote to memory of 1716 1356 rundll32.exe 30 PID 1356 wrote to memory of 1716 1356 rundll32.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Notes.md1⤵
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Notes.md2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Notes.md"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1716
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