locky_lukitus | 5f5a2d6ac7de72eee55e169111e84c482cf7b700505d1608fcecb4c0b501e3ab

General

Target

2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe
Size

657KB
MD5

8009e4433aad21916a7761d374ee2be9
SHA1

e0538c4bb3d0310f827799c98707b681d1f91b45
SHA256

2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea
SHA512

404f98fb57d0842aa43d5a113a395ff1d5d963ae60bce81d4dc22f3f0b382a7ba06703b0d7404a240e5edf5f1f75f8bc9b980a966bd29b9e432cd09cb1507071

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
1688	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-1-5-21-3825035466-2522850611-591511364-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\lukitus.bmp"	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Control Panel\Desktop\WallpaperStyle = "0"	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Control Panel\Desktop\TileWallpaper = "0"	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{81A876B1-1F9F-11EB-8030-C611B4A1F110} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
524	iexplore.exe
588	DllHost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
524	iexplore.exe
524	iexplore.exe
1952	IEXPLORE.EXE
1952	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 524	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	31
PID 1704 wrote to memory of 524	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	31
PID 1704 wrote to memory of 524	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	31
PID 1704 wrote to memory of 524	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	31
PID 524 wrote to memory of 1952	524	iexplore.exe	33
PID 524 wrote to memory of 1952	524	iexplore.exe	33
PID 524 wrote to memory of 1952	524	iexplore.exe	33
PID 524 wrote to memory of 1952	524	iexplore.exe	33
PID 1704 wrote to memory of 1688	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	34
PID 1704 wrote to memory of 1688	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	34
PID 1704 wrote to memory of 1688	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	34
PID 1704 wrote to memory of 1688	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	34

C:\Users\Admin\AppData\Local\Temp\2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe
"C:\Users\Admin\AppData\Local\Temp\2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:1704
- 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:524
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:524 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:1952
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe"
  2⤵
  - Deletes itself
  PID:1688

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

memory/1388-0-0x000007FEF7C70000-0x000007FEF7EEA000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads