locky_lukitus | aa36ae501dd09617500a6b38de7917dc5c7313fffb2841bcfdcafa9d567621f0

General

Target

a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe
Size

590KB
MD5

a1cb6b40b49d78103444c32f4f5c1022
SHA1

d911951b10b4c41239f639af8397fefbc9deed12
SHA256

aa36ae501dd09617500a6b38de7917dc5c7313fffb2841bcfdcafa9d567621f0
SHA512

e6b05658f34beff41d7fc13cfb4bd3cff776a24356cce78fb2c29002a4e451a40e019c806c824274fc41248582254320961f07d56b0a4fc38a2fb676045db1e4
SSDEEP

12288:/g2xN5Hef7wWHX+IuNEFVqhJuWYI17c8Z7zo1N9:LN5+f7t3cEFVq5Y0wu7zo

Score

10^/10

locky_lukitus ransomware

Malware Config

Signatures

Locky (Lukitus variant)
Variant of the Locky ransomware seen in the wild since late 2017.
ransomware locky_lukitus

Deletes itself 1 IoCs

pid	Process
2824	cmd.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-1-5-21-3691908287-3775019229-3534252667-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\lukitus.bmp"	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Control Panel\Desktop\WallpaperStyle = "0"	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Control Panel\Desktop\TileWallpaper = "0"	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{AB2AF701-28EB-11EF-B6D8-6A387CD8C53E} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2876	iexplore.exe
2344	DllHost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2876	iexplore.exe
2876	iexplore.exe
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2876	2204	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe	32
PID 2204 wrote to memory of 2876	2204	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe	32
PID 2204 wrote to memory of 2876	2204	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe	32
PID 2204 wrote to memory of 2876	2204	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe	32
PID 2876 wrote to memory of 2604	2876	iexplore.exe	34
PID 2876 wrote to memory of 2604	2876	iexplore.exe	34
PID 2876 wrote to memory of 2604	2876	iexplore.exe	34
PID 2876 wrote to memory of 2604	2876	iexplore.exe	34
PID 2204 wrote to memory of 2824	2204	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe	35
PID 2204 wrote to memory of 2824	2204	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe	35
PID 2204 wrote to memory of 2824	2204	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe	35
PID 2204 wrote to memory of 2824	2204	a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe	35

C:\Users\Admin\AppData\Local\Temp\a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe"
1⤵
- Sets desktop wallpaper using registry
- Enumerates system info in registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\lukitus.htm
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2876 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:2604
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\a1cb6b40b49d78103444c32f4f5c1022_JaffaCakes118.exe"
  2⤵
  - Deletes itself
  PID:2824

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:2344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Replay Monitor

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Downloads

C:\Users\Admin\Desktop\lukitus.bmp

Filesize
3.8MB

MD5
b5389b0baea9826fb047ec7c5397dfd6

SHA1
8402a3abfa0c7baed4c32368a04c3d695e5b192a

SHA256
0d71884066f3ef9427c6a39af412a27207d209d682bb325b465804b85168b7ca

SHA512
4f0937c2d7c1e37745a0ac15b503adf2212d850862186abe225e09c9860b30f83395f8614ab9f90931d316fbebbe5c742a7c02f33528002315359293331f6253

Download Submit
C:\Users\Default\lukitus-2544.htm

Filesize
8KB

MD5
3b88ee0b42957ea297b6f69a8b14069a

SHA1
83474fda0ea83b5d7bd192ef66fe8355d2ced383

SHA256
eb47c56cab20d9ac8cf2e5aa1356460f5b221611a74cac22f78c8fabc9c2828c

SHA512
d73ada7e6f9816d7db406f46facf89f6608ff3c1b624e542edba4f1ea13a21a1d3d520b3230528290638b6c28d42bc2d1f15fa12b5328a5cf4c74a220a2e209a

Download Submit
memory/2204-11-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-14-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-5-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2204-4-0x0000000002620000-0x0000000002621000-memory.dmp

Filesize
4KB

Download
memory/2204-6-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-9-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-0-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-3-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-2-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-279-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-283-0x0000000002670000-0x0000000002672000-memory.dmp

Filesize
8KB

Download
memory/2204-1-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2204-287-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2344-285-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download
memory/2344-284-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads