Analysis
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max time kernel
85s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
02-10-2022 19:09
Static task
static1
Behavioral task
behavioral1
Sample
imagestore.dat
Resource
win7-20220812-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
imagestore.dat
Resource
win10v2004-20220901-en
windows10-2004-x64
3 signatures
150 seconds
General
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Target
imagestore.dat
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Size
5KB
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MD5
eede441a0755fe0d346c95fd4442e252
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SHA1
2c4d2276c74d7bfac2fb67e39d47e47d627e0c2e
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SHA256
d57522a9f2ac0ddf6c4817f7ca137ec6cff448b3c6f55b43d6e5ab4a8b770e5f
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SHA512
9df2a294ebc0b11dda3c9c2bd77a9845f6e4ca698a6146bdab45b7bb46fadc45d1e7ab1ce00a83afcb6df2e49929e439f7016ee2eda185701757e5609b17bb0e
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SSDEEP
48:xwDaO7IJct3xItwDaYxG/7nvWDtZcdYLtX7B6QXL3aqG8f:YvIJct+MP47v+rcqlBPG9i
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). Likely ransomware behaviour.
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Modifies registry class 10 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dat_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dat_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.dat\ = "dat_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dat_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.dat rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dat_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dat_auto_file\shell rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\dat_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 364 AcroRd32.exe 364 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1184 wrote to memory of 1108 1184 cmd.exe 27 PID 1184 wrote to memory of 1108 1184 cmd.exe 27 PID 1184 wrote to memory of 1108 1184 cmd.exe 27 PID 1108 wrote to memory of 364 1108 rundll32.exe 28 PID 1108 wrote to memory of 364 1108 rundll32.exe 28 PID 1108 wrote to memory of 364 1108 rundll32.exe 28 PID 1108 wrote to memory of 364 1108 rundll32.exe 28
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\imagestore.dat1⤵
- Suspicious use of WriteProcessMemory
PID:1184 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\imagestore.dat2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1108 -
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\imagestore.dat"3⤵
- Suspicious use of SetWindowsHookEx
PID:364
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