Analysis
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max time kernel
134s -
max time network
137s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
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submitted
05/04/2024, 19:43
General
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Target
BSR.pyc
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Size
10.5MB
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MD5
7a0e5fbbbaf82bbf0be66c5761dfbe7c
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SHA1
b837618235d17c2fee6a02f0d3eadedc8d25d549
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SHA256
ee4cac072df122d13ec3dfbdb1fe276a9d0193fec3b6552088eead067e36cca8
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SHA512
644e36d6e7d043386c78aca405dcd208d283525743cb3509c1e292875ec877e32cee792aacc107ddee1b11dcfa480319299e084d3150bb169a63a24cef4003bb
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SSDEEP
24:SfLFtLyxnSanyXUSanyXndzmiCCHBSanyHcXRSany+SanykSanyMo3SanyS9wSau:SfL72iCDkRZW7PvWWbrs8r
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 2 IoCs
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Opens file in notepad (likely ransom note) 2 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of SetWindowsHookEx 25 IoCs
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Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\BSR.pyc1⤵
- Modifies registry class
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\BSR.pyc2⤵
- Opens file in notepad (likely ransom note)
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C:\Windows\System32\Notepad.exe"C:\Windows\System32\Notepad.exe" C:\Users\Admin\Desktop\DisconnectConvertFrom.vbe1⤵
- Opens file in notepad (likely ransom note)