Analysis
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max time kernel
147s -
max time network
146s -
platform
windows7_x64 -
resource
win7-en-20211104 -
submitted
17-11-2021 11:39
Static task
static1
Behavioral task
behavioral1
Sample
20161205_100008bbc736af07046b2402686345ab.js
Resource
win7-en-20211104
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
20161205_100008bbc736af07046b2402686345ab.js
Resource
win10-en-20211104
windows10_x64
0 signatures
0 seconds
General
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Target
20161205_100008bbc736af07046b2402686345ab.js
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Size
12KB
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MD5
b58572a8058a0b867d43ebfa00f357df
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SHA1
4d6e8ac1afee83f07c60e18aff413778b5a9ee40
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SHA256
8a1d1c5e75724f1ddc46071f3bb38d6ddd9713adfd0b5bf05df4598f410a1331
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SHA512
a3e2e4bf1da37a26db6ea8263f7604f52387f5841f50a8a8f6e950932dff664443f0b24de204d9040d89ff76b65e906de03b40ef99307fb324afc163c1aae195
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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suricata: ET MALWARE Nemucod JS Downloader Aug 01 2017
suricata: ET MALWARE Nemucod JS Downloader Aug 01 2017
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Blocklisted process makes network request 13 IoCs
flow pid Process 6 368 wscript.exe 8 368 wscript.exe 10 368 wscript.exe 12 368 wscript.exe 14 368 wscript.exe 16 368 wscript.exe 17 368 wscript.exe 19 368 wscript.exe 22 2020 rundll32.exe 23 2020 rundll32.exe 26 2020 rundll32.exe 27 2020 rundll32.exe 28 2020 rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 2020 rundll32.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description 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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallpaperStyle = "0" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\TileWallpaper = "0" rundll32.exe -
description ioc Process 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\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "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 (data) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery 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\Main 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\Recovery\AdminActive\{89E55461-47A8-11EC-BC95-42884776E148} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" 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\InternetRegistry 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\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive 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 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\GPU 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\IntelliForms 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\Main iexplore.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1012 iexplore.exe 2040 DllHost.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1012 iexplore.exe 1012 iexplore.exe 1488 IEXPLORE.EXE 1488 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 368 wrote to memory of 1144 368 wscript.exe 30 PID 368 wrote to memory of 1144 368 wscript.exe 30 PID 368 wrote to memory of 1144 368 wscript.exe 30 PID 1144 wrote to memory of 2020 1144 rundll32.exe 31 PID 1144 wrote to memory of 2020 1144 rundll32.exe 31 PID 1144 wrote to memory of 2020 1144 rundll32.exe 31 PID 1144 wrote to memory of 2020 1144 rundll32.exe 31 PID 1144 wrote to memory of 2020 1144 rundll32.exe 31 PID 1144 wrote to memory of 2020 1144 rundll32.exe 31 PID 1144 wrote to memory of 2020 1144 rundll32.exe 31 PID 2020 wrote to memory of 1012 2020 rundll32.exe 35 PID 2020 wrote to memory of 1012 2020 rundll32.exe 35 PID 2020 wrote to memory of 1012 2020 rundll32.exe 35 PID 2020 wrote to memory of 1012 2020 rundll32.exe 35 PID 1012 wrote to memory of 1488 1012 iexplore.exe 37 PID 1012 wrote to memory of 1488 1012 iexplore.exe 37 PID 1012 wrote to memory of 1488 1012 iexplore.exe 37 PID 1012 wrote to memory of 1488 1012 iexplore.exe 37
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\20161205_100008bbc736af07046b2402686345ab.js1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:368 -
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\PCNKZV~1.ZK,TOxNKCZjUHCfTf9D2⤵
- Suspicious use of WriteProcessMemory
PID:1144 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\PCNKZV~1.ZK,TOxNKCZjUHCfTf9D3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:2020 -
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:1012 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1012 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1488
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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:2040