Analysis
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max time kernel
140s -
max time network
136s -
platform
windows7_x64 -
resource
win7-en-20211104 -
submitted
18-11-2021 14:00
Static task
static1
Behavioral task
behavioral1
Sample
20161205_3030a6970348cbb57d00e985c8437e9b.js
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
20161205_3030a6970348cbb57d00e985c8437e9b.js
Resource
win10-en-20211104
General
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Target
20161205_3030a6970348cbb57d00e985c8437e9b.js
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Size
13KB
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MD5
5c7c2fb5b45e4534e3a777fa8c7d2b45
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SHA1
69172e14243d51c1ee3509a4b2dcbd585ac1a235
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SHA256
44fec9388c02bdfb1773aa095b8c3a084526c38d012c7650a5796cd3fca9687e
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SHA512
4d074cd7c859aa4b299b14834e938ed63aaea0f5680f2956587949df7eb64df97d3f249334df79bd23a0a7a83247b54b26294a270106cce75c949500be44b543
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 9 IoCs
Processes:
wscript.exerundll32.exeflow pid process 5 1072 wscript.exe 7 1072 wscript.exe 9 1072 wscript.exe 11 1072 wscript.exe 14 744 rundll32.exe 15 744 rundll32.exe 16 744 rundll32.exe 17 744 rundll32.exe 18 744 rundll32.exe -
Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
rundll32.exedescription ioc process File opened for modification \??\c:\Users\Admin\Pictures\ExportSearch.tiff rundll32.exe File opened for modification \??\c:\Users\Admin\Pictures\InstallUnregister.tiff rundll32.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 744 rundll32.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\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
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\TileWallpaper = "0" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallpaperStyle = "0" rundll32.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{5C31B371-4879-11EC-8578-66366FCC02DF} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
iexplore.exeDllHost.exepid process 1596 iexplore.exe 880 DllHost.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 1596 iexplore.exe 1596 iexplore.exe 1136 IEXPLORE.EXE 1136 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
wscript.exerundll32.exerundll32.exeiexplore.exedescription pid process target process PID 1072 wrote to memory of 648 1072 wscript.exe rundll32.exe PID 1072 wrote to memory of 648 1072 wscript.exe rundll32.exe PID 1072 wrote to memory of 648 1072 wscript.exe rundll32.exe PID 648 wrote to memory of 744 648 rundll32.exe rundll32.exe PID 648 wrote to memory of 744 648 rundll32.exe rundll32.exe PID 648 wrote to memory of 744 648 rundll32.exe rundll32.exe PID 648 wrote to memory of 744 648 rundll32.exe rundll32.exe PID 648 wrote to memory of 744 648 rundll32.exe rundll32.exe PID 648 wrote to memory of 744 648 rundll32.exe rundll32.exe PID 648 wrote to memory of 744 648 rundll32.exe rundll32.exe PID 744 wrote to memory of 1596 744 rundll32.exe iexplore.exe PID 744 wrote to memory of 1596 744 rundll32.exe iexplore.exe PID 744 wrote to memory of 1596 744 rundll32.exe iexplore.exe PID 744 wrote to memory of 1596 744 rundll32.exe iexplore.exe PID 1596 wrote to memory of 1136 1596 iexplore.exe IEXPLORE.EXE PID 1596 wrote to memory of 1136 1596 iexplore.exe IEXPLORE.EXE PID 1596 wrote to memory of 1136 1596 iexplore.exe IEXPLORE.EXE PID 1596 wrote to memory of 1136 1596 iexplore.exe IEXPLORE.EXE
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\20161205_3030a6970348cbb57d00e985c8437e9b.js1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\KCT3AF~1.ZK,TOxNKCZjUHCfTf9D2⤵
- Suspicious use of WriteProcessMemory
PID:648 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\KCT3AF~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:744 -
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:1596 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1596 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1136
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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:880
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\KCT3AF~1.ZKMD5
6b760fbbefa7f8dd1daaa93ebc38725a
SHA181841f24244485dae1c1834df3e544893d258f06
SHA256c564dcc24fa9909a4482feb46d52fa96869a2ad6c8c87b5cbeee19b9b36a0ff6
SHA5126ea91469538c40dada22b66373da0deb57f48d9d535e5ebd8199b5074a26c93a297386389a58468032dec1aef36423271d7ffaf84feba772b531c9ccd46fc68a
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C:\Users\Admin\DesktopOSIRIS.bmpMD5
e093483e826f4d00ec8acd7aa02ad11a
SHA1c36d5cc3cb11ddedd3ba34c2551b86d7ea24a64d
SHA2564ba37f5f6e8775cb4a765e59b3f78d145cab2c15c73fda1eaa3483ccc05a2280
SHA512ea9ae4ab2656962e5bf6e3e3311dcf09a8f0ffc4831e6410e312c42f881dd1c7f654defb0ea11a0ab0fe4d37597ea6dd37b24174844a236716c63eaec9cb7a0b
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C:\Users\Admin\DesktopOSIRIS.htmMD5
2a2c183b4a6f732d0b351e2ce80315e9
SHA174aaadded7b03867bf5e9761d6851b452d32fede
SHA256cf7f947d815e683fde77a8dfcf97990f22171b18a60aa33dffb73bbf55b7dcd4
SHA51258d83d008d7eeb8f8c83daab4cbb1cbc8b77de1991dcbade2014684da4016b4d5b1b1d1d6d074a0a4be75cd6039ece0629c795857aca92a810855e687cd02eca
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\Users\Admin\AppData\Local\Temp\KCT3AF~1.ZKMD5
6b760fbbefa7f8dd1daaa93ebc38725a
SHA181841f24244485dae1c1834df3e544893d258f06
SHA256c564dcc24fa9909a4482feb46d52fa96869a2ad6c8c87b5cbeee19b9b36a0ff6
SHA5126ea91469538c40dada22b66373da0deb57f48d9d535e5ebd8199b5074a26c93a297386389a58468032dec1aef36423271d7ffaf84feba772b531c9ccd46fc68a
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memory/648-55-0x0000000000000000-mapping.dmp
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memory/744-62-0x0000000000200000-0x0000000000201000-memory.dmpFilesize
4KB
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memory/744-60-0x0000000075110000-0x000000007514A000-memory.dmpFilesize
232KB
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memory/744-58-0x0000000075971000-0x0000000075973000-memory.dmpFilesize
8KB
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memory/744-57-0x0000000000000000-mapping.dmp
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memory/880-65-0x0000000000160000-0x0000000000162000-memory.dmpFilesize
8KB
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memory/880-67-0x00000000001E0000-0x00000000001E1000-memory.dmpFilesize
4KB
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memory/1136-66-0x0000000000000000-mapping.dmp
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memory/1596-63-0x0000000000000000-mapping.dmp