locky | 0c2470ec5c4f4cf7bd8aa004cd97a48d92c41f6ec9fe6799f82a31723b5b1b33

General

Target

20161205_e6efa392712fe75ba2f4d68341a6a701.js
Size

12KB
MD5

486080aee39682d5c32041351f49f90b
SHA1

8692f7c1cbbaad11e1b00468e75cf1bae17fbd7a
SHA256

0c2470ec5c4f4cf7bd8aa004cd97a48d92c41f6ec9fe6799f82a31723b5b1b33
SHA512

3e02bc3b3cc141a680c05215be3c43236ef63dd9f3383fdda794a45bcf6da917775d354b7c66946783f23442bbd504fa6a734c6817ee0715f5465855db89a294

Score

10^/10

locky locky_osiris ransomware

Malware Config

Signatures

Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
ransomware locky
Locky (Osiris variant)
Variant of the Locky ransomware seen in the wild since early 2017.
ransomware locky_osiris
Blocklisted process makes network request 6 IoCs

Processes:

wscript.exerundll32.exe

flow pid process

6 856 wscript.exe
7 1936 rundll32.exe
8 1936 rundll32.exe
9 1936 rundll32.exe
10 1936 rundll32.exe
11 1936 rundll32.exe

flow	pid	process
6	856	wscript.exe
7	1936	rundll32.exe
8	1936	rundll32.exe
9	1936	rundll32.exe
10	1936	rundll32.exe
11	1936	rundll32.exe

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

rundll32.exe

description	ioc	process
File opened for modification	\??\c:\Users\Admin\Pictures\EditTrace.tiff	rundll32.exe
File opened for modification	\??\c:\Users\Admin\Pictures\SplitAssert.tiff	rundll32.exe

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1936 rundll32.exe

pid	process
1936	rundll32.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

rundll32.exe

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.

System Information Discovery
T1082

Modifies Control Panel 2 IoCs

evasion

Processes:

rundll32.exe

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

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
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\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
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{BB607C31-47A8-11EC-A574-C2AE4504B8CD} = "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\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main	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\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\LowRegistry\DontShowMeThisDialogAgain	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\Zoom	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\Toolbar	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\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

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

iexplore.exeDllHost.exe

pid process

1972 iexplore.exe
1444 DllHost.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1972 iexplore.exe
1972 iexplore.exe
1596 IEXPLORE.EXE
1596 IEXPLORE.EXE

pid	process
1972	iexplore.exe
1444	DllHost.exe

pid	process
1972	iexplore.exe
1972	iexplore.exe
1596	IEXPLORE.EXE
1596	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

wscript.exerundll32.exerundll32.exeiexplore.exe

description	pid	process	target process
PID 856 wrote to memory of 1928	856	wscript.exe	rundll32.exe
PID 856 wrote to memory of 1928	856	wscript.exe	rundll32.exe
PID 856 wrote to memory of 1928	856	wscript.exe	rundll32.exe
PID 1928 wrote to memory of 1936	1928	rundll32.exe	rundll32.exe
PID 1928 wrote to memory of 1936	1928	rundll32.exe	rundll32.exe
PID 1928 wrote to memory of 1936	1928	rundll32.exe	rundll32.exe
PID 1928 wrote to memory of 1936	1928	rundll32.exe	rundll32.exe
PID 1928 wrote to memory of 1936	1928	rundll32.exe	rundll32.exe
PID 1928 wrote to memory of 1936	1928	rundll32.exe	rundll32.exe
PID 1928 wrote to memory of 1936	1928	rundll32.exe	rundll32.exe
PID 1936 wrote to memory of 1972	1936	rundll32.exe	iexplore.exe
PID 1936 wrote to memory of 1972	1936	rundll32.exe	iexplore.exe
PID 1936 wrote to memory of 1972	1936	rundll32.exe	iexplore.exe
PID 1936 wrote to memory of 1972	1936	rundll32.exe	iexplore.exe
PID 1972 wrote to memory of 1596	1972	iexplore.exe	IEXPLORE.EXE
PID 1972 wrote to memory of 1596	1972	iexplore.exe	IEXPLORE.EXE
PID 1972 wrote to memory of 1596	1972	iexplore.exe	IEXPLORE.EXE
PID 1972 wrote to memory of 1596	1972	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\20161205_e6efa392712fe75ba2f4d68341a6a701.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:856

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\5BDHBJ~1.ZK,TOxNKCZjUHCfTf9D
2⤵
- Suspicious use of WriteProcessMemory
PID:1928

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\5BDHBJ~1.ZK,TOxNKCZjUHCfTf9D
3⤵
- 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:1936

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\DesktopOSIRIS.htm
4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1972

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1972 CREDAT:275457 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1596

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1444

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1

T1491

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\5BDHBJ~1.ZK
MD5
6b760fbbefa7f8dd1daaa93ebc38725a

SHA1
81841f24244485dae1c1834df3e544893d258f06

SHA256
c564dcc24fa9909a4482feb46d52fa96869a2ad6c8c87b5cbeee19b9b36a0ff6

SHA512
6ea91469538c40dada22b66373da0deb57f48d9d535e5ebd8199b5074a26c93a297386389a58468032dec1aef36423271d7ffaf84feba772b531c9ccd46fc68a

Download Submit
C:\Users\Admin\DesktopOSIRIS.bmp
MD5
e093483e826f4d00ec8acd7aa02ad11a

SHA1
c36d5cc3cb11ddedd3ba34c2551b86d7ea24a64d

SHA256
4ba37f5f6e8775cb4a765e59b3f78d145cab2c15c73fda1eaa3483ccc05a2280

SHA512
ea9ae4ab2656962e5bf6e3e3311dcf09a8f0ffc4831e6410e312c42f881dd1c7f654defb0ea11a0ab0fe4d37597ea6dd37b24174844a236716c63eaec9cb7a0b

Download Submit
C:\Users\Admin\DesktopOSIRIS.htm
MD5
2a2c183b4a6f732d0b351e2ce80315e9

SHA1
74aaadded7b03867bf5e9761d6851b452d32fede

SHA256
cf7f947d815e683fde77a8dfcf97990f22171b18a60aa33dffb73bbf55b7dcd4

SHA512
58d83d008d7eeb8f8c83daab4cbb1cbc8b77de1991dcbade2014684da4016b4d5b1b1d1d6d074a0a4be75cd6039ece0629c795857aca92a810855e687cd02eca

Download Submit
\Users\Admin\AppData\Local\Temp\5BDHBJ~1.ZK
MD5
6b760fbbefa7f8dd1daaa93ebc38725a

SHA1
81841f24244485dae1c1834df3e544893d258f06

SHA256
c564dcc24fa9909a4482feb46d52fa96869a2ad6c8c87b5cbeee19b9b36a0ff6

SHA512
6ea91469538c40dada22b66373da0deb57f48d9d535e5ebd8199b5074a26c93a297386389a58468032dec1aef36423271d7ffaf84feba772b531c9ccd46fc68a

Download Submit
memory/1444-67-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1444-66-0x00000000001A0000-0x00000000001A2000-memory.dmp

Filesize
8KB

Download
memory/1596-65-0x0000000000000000-mapping.dmp

Download
memory/1928-55-0x0000000000000000-mapping.dmp

Download
memory/1936-58-0x0000000076341000-0x0000000076343000-memory.dmp

Filesize
8KB

Download
memory/1936-62-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1936-60-0x0000000074F80000-0x0000000074FBA000-memory.dmp

Filesize
232KB

Download
memory/1936-57-0x0000000000000000-mapping.dmp

Download
memory/1972-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads