locky_lukitus | 8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe

Analysis

max time kernel
1628s
max time network
1631s
platform
windows7_x64
resource
win7-20220414-en
submitted
28-06-2022 16:37

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General

Target

8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe
Size

602KB
MD5

c80c3fb6c195380cac523a07379ac310
SHA1

a199df676f583f9c4454d1714fcf152b541e84be
SHA256

8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe
SHA512

cd93ef8a7358f9aaf909a742bf02ca8447044bea9f96cc2d55948bd6e946f7587f700ea7d54f2666e5ffa73afd06e8082ac808458afe441850c70f72fa1128e5

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

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Pictures\MergeExpand.tiff	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe
File opened for modification	\??\c:\Users\Admin\Pictures\SplitSkip.tiff	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe

Deletes itself 1 IoCs

pid	Process
572	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-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\lukitus.bmp"	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.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-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\WallpaperStyle = "0"	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\TileWallpaper = "0"	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "363206616"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{CB907F01-F711-11EC-8873-66AE473A865F} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000358f16e0538341458b70f68dad1eafd400000000020000000000106600000001000020000000465543432928339ca96b45e7c914febc8ff21212284f39131cb7190328db31ae000000000e80000000020000200000006a245cc5a3a9dc324c0c46fb52f109108ff42e0adafa1fb116efead5cad2a518200000000125af4e8427e59b2e21f49e76ce3f0cf2c2237cb50663f7c697591b4bc4627f40000000404b216c72e4df6ec44dd631f0d25d38da46a6e7dcb2051e593f887f5fbc75330611a4e3f012cd2efe52d262dc23555967301dc34967a8c4f4b7a841363bce7a	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c04d36a11e8bd801	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1508	iexplore.exe
1480	DllHost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1508	iexplore.exe
1508	iexplore.exe
1072	IEXPLORE.EXE
1072	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 1508	880	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe	29
PID 880 wrote to memory of 1508	880	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe	29
PID 880 wrote to memory of 1508	880	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe	29
PID 880 wrote to memory of 1508	880	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe	29
PID 1508 wrote to memory of 1072	1508	iexplore.exe	31
PID 1508 wrote to memory of 1072	1508	iexplore.exe	31
PID 1508 wrote to memory of 1072	1508	iexplore.exe	31
PID 1508 wrote to memory of 1072	1508	iexplore.exe	31
PID 880 wrote to memory of 572	880	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe	32
PID 880 wrote to memory of 572	880	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe	32
PID 880 wrote to memory of 572	880	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe	32
PID 880 wrote to memory of 572	880	8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe	32

C:\Users\Admin\AppData\Local\Temp\8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe
"C:\Users\Admin\AppData\Local\Temp\8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:880
- 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:1508
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1508 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:1072
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\8732d8a06842219bb9cf705a59cedb848996a53ce4a4438f34bf0f5fc7fc90fe.exe"
  2⤵
  - Deletes itself
  PID:572

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\RJI0X3G3.txt

Filesize
603B

MD5
9b398e0a9920c4954d3a34df87d0fc0f

SHA1
14960e8e6803cfee1c54be84db30e90a9e57803c

SHA256
f329e45a9d31f4acfea1fa0dd9d5cc5c2ed4f24f08302c0e4427ddcf4b18e07e

SHA512
f9ca1be26608d163eb41c5e066c6463d29f08486ab619c20072c7359f61c2710bd63b024bb896d46c22df07b21e57f524271c516496aff28dc11b796cfce1b80

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

Filesize
3.5MB

MD5
e9da83e5da2e06d3c576e3e8eee172bb

SHA1
ba593de0573afd0e0d6bbc8e615404da4d882c5e

SHA256
87fd088b9d5278f849ed63c049da9d9bbd40ab4e67aa15d8261700adb6bb297e

SHA512
836d9821ee82f7e2d8d86cb19f1a72752220353d277be39c348391cd9e6c3d5b1ab93dde79bf6cc70478172c2ca822a8286ef52c98f0c043aa55168ef3d2fb34

Download Submit
C:\Users\Admin\Desktop\lukitus.htm

Filesize
7KB

MD5
ce9afc7e7df846074f6ce40a9993e274

SHA1
871bda728dc57d4e4744a6ffc9af96ee3415f044

SHA256
ad76530c5da369b4135c507c40b60b2f0cc220c4f26256b038419ea6e3a3de3f

SHA512
e8bc0522ec24d323cbdea8be2485d5d38b50e23f7cc8d5a50afd64965f5aa8928fb584a2e597723fd006ad5e659d28023ed44f67e21536200a65f534ee5da7ae

Download Submit
memory/880-54-0x0000000075711000-0x0000000075713000-memory.dmp

Filesize
8KB

Download
memory/880-55-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/880-57-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/880-56-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/880-60-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads