locky | b8494b88e63351904e2e8cfb7f9f25ed4bd01a8e1b35cca65dff546dc5c01ccf

General

Target

20161205_2e6c571558fdba57b85cb4db3b98a3c3.js
Size

13KB
MD5

020a1da5932b76e2c7fa33346b582afc
SHA1

6ee6275161befa757ed5a107637a9242bfa35f22
SHA256

b8494b88e63351904e2e8cfb7f9f25ed4bd01a8e1b35cca65dff546dc5c01ccf
SHA512

ced1a86345ce46ed94d6a9a360bdaa73ed8759a8dc078a5bd55ee3e02b7cabcb4a0b2b7eb921c5939f0230f2e5300981c5700d307d9ae7a5a4202a2a00927c34

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

5 1112 wscript.exe
6 1660 rundll32.exe
9 1660 rundll32.exe
10 1660 rundll32.exe
11 1660 rundll32.exe
12 1660 rundll32.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1660 rundll32.exe

flow	pid	process
5	1112	wscript.exe
6	1660	rundll32.exe
9	1660	rundll32.exe
10	1660	rundll32.exe
11	1660	rundll32.exe
12	1660	rundll32.exe

pid	process
1660	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\IntelliForms	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\PageSetup	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\Recovery\PendingRecovery	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\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	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\{3B36DD51-47AA-11EC-B820-E24EDD688A3C} = "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
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\InternetRegistry	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\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Main	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
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\BrowserEmulation\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\Zoom	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
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

2028 iexplore.exe
1948 DllHost.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

2028 iexplore.exe
2028 iexplore.exe
1132 IEXPLORE.EXE
1132 IEXPLORE.EXE

pid	process
2028	iexplore.exe
1948	DllHost.exe

pid	process
2028	iexplore.exe
2028	iexplore.exe
1132	IEXPLORE.EXE
1132	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

wscript.exerundll32.exerundll32.exeiexplore.exe

description	pid	process	target process
PID 1112 wrote to memory of 820	1112	wscript.exe	rundll32.exe
PID 1112 wrote to memory of 820	1112	wscript.exe	rundll32.exe
PID 1112 wrote to memory of 820	1112	wscript.exe	rundll32.exe
PID 820 wrote to memory of 1660	820	rundll32.exe	rundll32.exe
PID 820 wrote to memory of 1660	820	rundll32.exe	rundll32.exe
PID 820 wrote to memory of 1660	820	rundll32.exe	rundll32.exe
PID 820 wrote to memory of 1660	820	rundll32.exe	rundll32.exe
PID 820 wrote to memory of 1660	820	rundll32.exe	rundll32.exe
PID 820 wrote to memory of 1660	820	rundll32.exe	rundll32.exe
PID 820 wrote to memory of 1660	820	rundll32.exe	rundll32.exe
PID 1660 wrote to memory of 2028	1660	rundll32.exe	iexplore.exe
PID 1660 wrote to memory of 2028	1660	rundll32.exe	iexplore.exe
PID 1660 wrote to memory of 2028	1660	rundll32.exe	iexplore.exe
PID 1660 wrote to memory of 2028	1660	rundll32.exe	iexplore.exe
PID 2028 wrote to memory of 1132	2028	iexplore.exe	IEXPLORE.EXE
PID 2028 wrote to memory of 1132	2028	iexplore.exe	IEXPLORE.EXE
PID 2028 wrote to memory of 1132	2028	iexplore.exe	IEXPLORE.EXE
PID 2028 wrote to memory of 1132	2028	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\20161205_2e6c571558fdba57b85cb4db3b98a3c3.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1112

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\O9Q9D1~1.ZK,TOxNKCZjUHCfTf9D
2⤵
- Suspicious use of WriteProcessMemory
PID:820

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\O9Q9D1~1.ZK,TOxNKCZjUHCfTf9D
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:1660

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:2028

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2028 CREDAT:275457 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1132

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1948

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\O9Q9D1~1.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\O9Q9D1~1.ZK
MD5
6b760fbbefa7f8dd1daaa93ebc38725a

SHA1
81841f24244485dae1c1834df3e544893d258f06

SHA256
c564dcc24fa9909a4482feb46d52fa96869a2ad6c8c87b5cbeee19b9b36a0ff6

SHA512
6ea91469538c40dada22b66373da0deb57f48d9d535e5ebd8199b5074a26c93a297386389a58468032dec1aef36423271d7ffaf84feba772b531c9ccd46fc68a

Download Submit
memory/820-55-0x0000000000000000-mapping.dmp

Download
memory/1132-66-0x0000000000000000-mapping.dmp

Download
memory/1660-58-0x0000000075851000-0x0000000075853000-memory.dmp

Filesize
8KB

Download
memory/1660-62-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/1660-60-0x0000000074790000-0x00000000747CA000-memory.dmp

Filesize
232KB

Download
memory/1660-57-0x0000000000000000-mapping.dmp

Download
memory/1948-65-0x00000000001F0000-0x00000000001F2000-memory.dmp

Filesize
8KB

Download
memory/1948-67-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2028-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads