Analysis
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max time kernel
150s -
max time network
118s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
20-01-2022 19:05
Static task
static1
Behavioral task
behavioral1
Sample
f8c08d00ff6e8c6adb1a93cd133b19302d0b651afd73ccb54e3b6ac6c60d99c6.bin
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
f8c08d00ff6e8c6adb1a93cd133b19302d0b651afd73ccb54e3b6ac6c60d99c6.bin
Resource
win10v2004-en-20220112
General
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Target
f8c08d00ff6e8c6adb1a93cd133b19302d0b651afd73ccb54e3b6ac6c60d99c6.bin
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Size
1.8MB
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MD5
79fea7f741760ea21ff655137af05bd0
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SHA1
9146a448463935b47e29155da74c68d16e0d7031
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SHA256
f8c08d00ff6e8c6adb1a93cd133b19302d0b651afd73ccb54e3b6ac6c60d99c6
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SHA512
71246846d806ab436bd54973ca86d351736c2c03fc14e6273591f287c49cf79c148bd7d3d99b9725169728e20fdbd75be2e5d91a008aa5b176833574c414e14e
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-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\.bin rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\.bin\ = "bin_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\bin_auto_file\ rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1432 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1432 AcroRd32.exe 1432 AcroRd32.exe 1432 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1592 wrote to memory of 1292 1592 cmd.exe 28 PID 1592 wrote to memory of 1292 1592 cmd.exe 28 PID 1592 wrote to memory of 1292 1592 cmd.exe 28 PID 1292 wrote to memory of 1432 1292 rundll32.exe 29 PID 1292 wrote to memory of 1432 1292 rundll32.exe 29 PID 1292 wrote to memory of 1432 1292 rundll32.exe 29 PID 1292 wrote to memory of 1432 1292 rundll32.exe 29
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\f8c08d00ff6e8c6adb1a93cd133b19302d0b651afd73ccb54e3b6ac6c60d99c6.bin1⤵
- Suspicious use of WriteProcessMemory
PID:1592 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\f8c08d00ff6e8c6adb1a93cd133b19302d0b651afd73ccb54e3b6ac6c60d99c6.bin2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1292 -
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\f8c08d00ff6e8c6adb1a93cd133b19302d0b651afd73ccb54e3b6ac6c60d99c6.bin"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1432
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