Analysis
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max time kernel
146s -
max time network
151s -
platform
windows7_x64 -
resource
win7-en-20211014 -
submitted
18/11/2021, 14:03
Static task
static1
Behavioral task
behavioral1
Sample
20161205_bc36f1ce16f62adcd3368593f2c4ece0.js
Resource
win7-en-20211014
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
20161205_bc36f1ce16f62adcd3368593f2c4ece0.js
Resource
win10-en-20211104
windows10_x64
0 signatures
0 seconds
General
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Target
20161205_bc36f1ce16f62adcd3368593f2c4ece0.js
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Size
12KB
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MD5
ec1eaa7630980202c2ea84f4f99d8f14
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SHA1
7458ab3e869639e7e4fa55dd98994961ebd94f66
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SHA256
d3f7159425c0e6b1c076d12eacb62345188cd9fbc7fb74052a5b3b220df91e2f
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SHA512
9ff4b87c973694ae2ddf8102b06d9de2dc1758d71e70239cd2ade1e83352f1e324d225bd6a63d2045631f52e34c96c774af24fb8fdaa7e35598349f99cf92d9f
Score
10/10
Malware Config
Signatures
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Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
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Locky (Osiris variant)
Variant of the Locky ransomware seen in the wild since early 2017.
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Blocklisted process makes network request 11 IoCs
flow pid Process 6 964 wscript.exe 8 964 wscript.exe 9 964 wscript.exe 11 964 wscript.exe 13 964 wscript.exe 15 964 wscript.exe 18 1064 rundll32.exe 21 1064 rundll32.exe 22 1064 rundll32.exe 23 1064 rundll32.exe 24 1064 rundll32.exe -
Modifies extensions of user files 1 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification \??\c:\Users\Admin\Pictures\MeasureRepair.tiff rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 1064 rundll32.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\DesktopOSIRIS.bmp" rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies Control Panel 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\TileWallpaper = "0" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\WallpaperStyle = "0" rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{2AC2FE21-4883-11EC-ADBE-4ECD28260268} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 904 iexplore.exe 1188 DllHost.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 904 iexplore.exe 904 iexplore.exe 1696 IEXPLORE.EXE 1696 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 964 wrote to memory of 764 964 wscript.exe 30 PID 964 wrote to memory of 764 964 wscript.exe 30 PID 964 wrote to memory of 764 964 wscript.exe 30 PID 764 wrote to memory of 1064 764 rundll32.exe 31 PID 764 wrote to memory of 1064 764 rundll32.exe 31 PID 764 wrote to memory of 1064 764 rundll32.exe 31 PID 764 wrote to memory of 1064 764 rundll32.exe 31 PID 764 wrote to memory of 1064 764 rundll32.exe 31 PID 764 wrote to memory of 1064 764 rundll32.exe 31 PID 764 wrote to memory of 1064 764 rundll32.exe 31 PID 1064 wrote to memory of 904 1064 rundll32.exe 34 PID 1064 wrote to memory of 904 1064 rundll32.exe 34 PID 1064 wrote to memory of 904 1064 rundll32.exe 34 PID 1064 wrote to memory of 904 1064 rundll32.exe 34 PID 904 wrote to memory of 1696 904 iexplore.exe 36 PID 904 wrote to memory of 1696 904 iexplore.exe 36 PID 904 wrote to memory of 1696 904 iexplore.exe 36 PID 904 wrote to memory of 1696 904 iexplore.exe 36
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\20161205_bc36f1ce16f62adcd3368593f2c4ece0.js1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:964 -
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\MTCLMW~1.ZK,TOxNKCZjUHCfTf9D2⤵
- Suspicious use of WriteProcessMemory
PID:764 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\MTCLMW~1.ZK,TOxNKCZjUHCfTf9D3⤵
- Blocklisted process makes network request
- Modifies extensions of user files
- Loads dropped DLL
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:1064 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\DesktopOSIRIS.htm4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:904 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1696
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}1⤵
- Suspicious use of FindShellTrayWindow
PID:1188