locky | c7f63ace7a572d2aa7d1c59fb429d701d9ef726c193814c195ccae9154a2c555

General

Target

20161205_c7a9b42aed084c6015e3a51ca465871b.js
Size

13KB
MD5

0b25736a16fcd565e231c2f5171659b7
SHA1

a6cf56ec5e72e3a08afa7a85146bf144a0168005
SHA256

c7f63ace7a572d2aa7d1c59fb429d701d9ef726c193814c195ccae9154a2c555
SHA512

08ea748d632c8bb8b83de73ca538cca5b6cc9704b1fac749bcfde22df31cfbf4b6c7db9da4b908141de5cb559a7bfa3e95e98affe4725cbcf1d07ea487be6f62

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 8 IoCs

flow	pid	Process
6	1412	wscript.exe
8	1412	wscript.exe
10	1412	wscript.exe
11	1248	rundll32.exe
12	1248	rundll32.exe
13	1248	rundll32.exe
14	1248	rundll32.exe
15	1248	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1248	rundll32.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

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

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

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\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{C2435CA1-47A5-11EC-8E0E-CA5035EAFC97} = "0"	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\LowRegistry	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\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
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\IETld\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\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\Recovery\AdminActive	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\BrowserEmulation\LowMic	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\LowRegistry\DOMStorage	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\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\Recovery\PendingRecovery	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
860	iexplore.exe
1724	DllHost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
860	iexplore.exe
860	iexplore.exe
800	IEXPLORE.EXE
800	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1412 wrote to memory of 760	1412	wscript.exe	30
PID 1412 wrote to memory of 760	1412	wscript.exe	30
PID 1412 wrote to memory of 760	1412	wscript.exe	30
PID 760 wrote to memory of 1248	760	rundll32.exe	31
PID 760 wrote to memory of 1248	760	rundll32.exe	31
PID 760 wrote to memory of 1248	760	rundll32.exe	31
PID 760 wrote to memory of 1248	760	rundll32.exe	31
PID 760 wrote to memory of 1248	760	rundll32.exe	31
PID 760 wrote to memory of 1248	760	rundll32.exe	31
PID 760 wrote to memory of 1248	760	rundll32.exe	31
PID 1248 wrote to memory of 860	1248	rundll32.exe	35
PID 1248 wrote to memory of 860	1248	rundll32.exe	35
PID 1248 wrote to memory of 860	1248	rundll32.exe	35
PID 1248 wrote to memory of 860	1248	rundll32.exe	35
PID 860 wrote to memory of 800	860	iexplore.exe	37
PID 860 wrote to memory of 800	860	iexplore.exe	37
PID 860 wrote to memory of 800	860	iexplore.exe	37
PID 860 wrote to memory of 800	860	iexplore.exe	37

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\20161205_c7a9b42aed084c6015e3a51ca465871b.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\UGCI3K~1.ZK,TOxNKCZjUHCfTf9D
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:760
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\UGCI3K~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:1248
  - - 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:860
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:860 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:800

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1724

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

memory/1248-62-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/1248-60-0x00000000748A0000-0x00000000748DA000-memory.dmp

Filesize
232KB

Download
memory/1248-58-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/1724-65-0x0000000000120000-0x0000000000122000-memory.dmp

Filesize
8KB

Download
memory/1724-66-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads