Analysis
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max time kernel
150s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
11-03-2023 01:21
Static task
static1
Behavioral task
behavioral1
Sample
LittleMsSam_SulSulWeatherApp/LittleMsSam_SulSulWeatherApp.pyc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
LittleMsSam_SulSulWeatherApp/LittleMsSam_SulSulWeatherApp.pyc
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
LittleMsSam_SulSulWeatherApp/LittleMsSam_SulSulWeatherApp_resource_test.pyc
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
LittleMsSam_SulSulWeatherApp/LittleMsSam_SulSulWeatherApp_resource_test.pyc
Resource
win10v2004-20230220-en
Behavioral task
behavioral5
Sample
LittleMsSam_SulSulWeatherApp/__init__.pyc
Resource
win7-20230220-en
Behavioral task
behavioral6
Sample
LittleMsSam_SulSulWeatherApp/__init__.pyc
Resource
win10v2004-20230220-en
General
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Target
LittleMsSam_SulSulWeatherApp/LittleMsSam_SulSulWeatherApp.pyc
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Size
912B
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MD5
bccb8be020fe2a7a70b9b1919586647f
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SHA1
7ff6bc00366712c76abcc29972055b1c3f41a653
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SHA256
96692d9a8a15409f40784fb99477da872b9c4db2d65dd59053205c0ce38b2d0e
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SHA512
b8f6cc839f0838fd2e697aab1238cce742ed09b8a7226ee8446b73b67b046529d8735bc3671d1366509469f6b5c65b080963076032192a30e15a7c13e2e22b13
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 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\pyc_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\pyc_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\pyc_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\pyc_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\pyc_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\.pyc rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\.pyc\ = "pyc_auto_file" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1512 AcroRd32.exe 1512 AcroRd32.exe 1512 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1432 wrote to memory of 1176 1432 cmd.exe 29 PID 1432 wrote to memory of 1176 1432 cmd.exe 29 PID 1432 wrote to memory of 1176 1432 cmd.exe 29 PID 1176 wrote to memory of 1512 1176 rundll32.exe 30 PID 1176 wrote to memory of 1512 1176 rundll32.exe 30 PID 1176 wrote to memory of 1512 1176 rundll32.exe 30 PID 1176 wrote to memory of 1512 1176 rundll32.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\LittleMsSam_SulSulWeatherApp\LittleMsSam_SulSulWeatherApp.pyc1⤵
- Suspicious use of WriteProcessMemory
PID:1432 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\LittleMsSam_SulSulWeatherApp\LittleMsSam_SulSulWeatherApp.pyc2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1176 -
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\LittleMsSam_SulSulWeatherApp\LittleMsSam_SulSulWeatherApp.pyc"3⤵
- Suspicious use of SetWindowsHookEx
PID:1512
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