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Analysis
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max time kernel
1s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
08/04/2024, 20:42
Static task
static1
Behavioral task
behavioral1
Sample
rare.txt
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
rare.txt
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
rare.txt
Resource
win10v2004-20240226-en
Behavioral task
behavioral4
Sample
rare.txt
Resource
win11-20240221-en
General
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Target
rare.txt
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Size
26B
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MD5
9c5a0f2dbbeb6ad4c245312efed6f8d6
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SHA1
d2746ac7fa695595d464b2d8004410377081051e
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SHA256
1c72e30dd7dfa0b51e54279b72e9743beb3b5037868ad20fcea977f5520d1e9e
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SHA512
acc6b98cdfa7e78c5392ec8e9913d5a982670ce171c82e79f2f91e96efdabab57ef2871fbed9372c258765b0af9ffb7ceac57d842a3549a68e65c4fd40e7a38c
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 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-647252928-2816094679-1307623958-1000_Classes\Local Settings cmd.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4844 NOTEPAD.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3736 wrote to memory of 4844 3736 cmd.exe 82 PID 3736 wrote to memory of 4844 3736 cmd.exe 82
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\rare.txt1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3736 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\rare.txt2⤵
- Opens file in notepad (likely ransom note)
PID:4844
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