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

Processes:

cmd.exe

pid process

1688 cmd.exe

pid	process
1688	cmd.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe

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

Processes:

2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe

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

Processes:

iexplore.exeIEXPLORE.EXE

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

Processes:

iexplore.exeDllHost.exe

pid process

524 iexplore.exe
588 DllHost.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

524 iexplore.exe
524 iexplore.exe
1952 IEXPLORE.EXE
1952 IEXPLORE.EXE

pid	process
524	iexplore.exe
588	DllHost.exe

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

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exeiexplore.exe

description	pid	process	target process
PID 1704 wrote to memory of 524	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	iexplore.exe
PID 1704 wrote to memory of 524	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	iexplore.exe
PID 1704 wrote to memory of 524	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	iexplore.exe
PID 1704 wrote to memory of 524	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	iexplore.exe
PID 524 wrote to memory of 1952	524	iexplore.exe	IEXPLORE.EXE
PID 524 wrote to memory of 1952	524	iexplore.exe	IEXPLORE.EXE
PID 524 wrote to memory of 1952	524	iexplore.exe	IEXPLORE.EXE
PID 524 wrote to memory of 1952	524	iexplore.exe	IEXPLORE.EXE
PID 1704 wrote to memory of 1688	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	cmd.exe
PID 1704 wrote to memory of 1688	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	cmd.exe
PID 1704 wrote to memory of 1688	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	cmd.exe
PID 1704 wrote to memory of 1688	1704	2deaa0ec7445c26f1442f860eb32f4fcda2d501699d09a94c26035d6185803ea.exe	cmd.exe

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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1

T1491

Replay Monitor

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Downloads

C:\Users\Admin\Desktop\lukitus.bmp
MD5
aa84167fbde8fba1f29e81a60e68a334

SHA1
83fa79c1d9c43f7481de9cb83e2b954962a583e6

SHA256
5fa2df0f7098af70ebae6ecb0aecd1045d4a5d3a260591976d0e678735a32555

SHA512
a8b6e1f0141d21beb041204078f0423bb344b9f50efdfc94a3edab7f896d1bebe7cbfde3c308a5e1a2d33f900665b15a5cbb0893b6120442da9fefaaea4ff98f

Download Submit
C:\Users\Admin\Desktop\lukitus.htm
MD5
2dff6c42d0530c27834958fa2efe42ad

SHA1
7ddc346a34e6d4f1e1d412b31bfa14c1dd02efa4

SHA256
cdf07831dc4faf8a3c3dfbfd52f170a4d7cbb9e69212697bed8eb1719fbc29a6

SHA512
4b3e18bc06a8ddde628c85a588af657bac5b1dfa3cc9f9373973618a5d9c23dc15ba50066172b1255be37d5d6905e236ad0b56585c60ce890b1e8102d503683d

Download Submit
memory/524-1-0x0000000000000000-mapping.dmp

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

Filesize
2.5MB

Download
memory/1688-3-0x0000000000000000-mapping.dmp

Download
memory/1952-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads