locky_lukitus | ce91d20c7f9e548ba5cf56e84cf8e535566bdaf6dd319d948988e3246d7f6644

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 00:34

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General

Target

2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe
Size

517KB
MD5

7619daf0a58c873caa3790bc66f84204
SHA1

1feb1683d1b149601d2036b41ed36fd9c9d88f6d
SHA256

ce91d20c7f9e548ba5cf56e84cf8e535566bdaf6dd319d948988e3246d7f6644
SHA512

2326dbe762b73cd83bbf0e8964ae9d7836686b5127b4d7d2064936ca81f2906d58e645b3928801b50ae3a86167a131a8b90d5d9c2ef8e0871bf150fcf4995508
SSDEEP

12288:uVRm47ugq9QLXzNWVn4Fkl6BQ2yLhxPtIS4GudgBXllbXtdj:uVzzzjNO4FkUQ2yL7PtIdGudqlb9dj

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

2596 cmd.exe

pid	process
2596	cmd.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\lukitus.bmp"	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe

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

System Information Discovery
T1082

Modifies Control Panel 2 IoCs

evasion

Processes:

2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Control Panel\Desktop\WallpaperStyle = "0"	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Control Panel\Desktop\TileWallpaper = "0"	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

Processes:

IEXPLORE.EXEiexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000006028c3744a24ce429f885c12716b1e2000000000020000000000106600000001000020000000d9f5becbf7be016e732f12a5d9d0ec48a00b5b92205af87a03512d1b13b2a0a5000000000e8000000002000020000000ecc51db2b14f934ed5c3fd081f12b3100d27147b14350d0ecd93db74acb2184120000000610d8ddc333e720501fe3a19103d728caf40e1ca5d30a7f90c4c1d03b3db486340000000e20dbe14cc32486de642d4bf73f532f80698e4bf136a9e31d609f1261fd3edda132dff1ed1e3d2c4b126414b48e5edd465c4a214be175ff2ab56d605e8ea4e8f	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 1093d05b29b2da01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "3"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{87676AD1-1E1C-11EF-A4EE-CEEE273A2359} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

iexplore.exeDllHost.exe

pid process

2796 iexplore.exe
2628 DllHost.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

2796 iexplore.exe
2796 iexplore.exe
2344 IEXPLORE.EXE
2344 IEXPLORE.EXE

pid	process
2796	iexplore.exe
2628	DllHost.exe

pid	process
2796	iexplore.exe
2796	iexplore.exe
2344	IEXPLORE.EXE
2344	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exeiexplore.exe

description	pid	process	target process
PID 1228 wrote to memory of 2796	1228	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe	iexplore.exe
PID 1228 wrote to memory of 2796	1228	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe	iexplore.exe
PID 1228 wrote to memory of 2796	1228	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe	iexplore.exe
PID 1228 wrote to memory of 2796	1228	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe	iexplore.exe
PID 2796 wrote to memory of 2344	2796	iexplore.exe	IEXPLORE.EXE
PID 2796 wrote to memory of 2344	2796	iexplore.exe	IEXPLORE.EXE
PID 2796 wrote to memory of 2344	2796	iexplore.exe	IEXPLORE.EXE
PID 2796 wrote to memory of 2344	2796	iexplore.exe	IEXPLORE.EXE
PID 1228 wrote to memory of 2596	1228	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe	cmd.exe
PID 1228 wrote to memory of 2596	1228	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe	cmd.exe
PID 1228 wrote to memory of 2596	1228	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe	cmd.exe
PID 1228 wrote to memory of 2596	1228	2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:1228
- 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:2796
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2796 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:2344
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\2024-05-30_7619daf0a58c873caa3790bc66f84204_locky.exe"
  2⤵
  - Deletes itself
  PID:2596

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
f0886725d0eeef960d72dce08cf0af63

SHA1
e09338bcf6fe489871cea3f086b61eafe13b119d

SHA256
af16cb2f63e2ef9ed6d66197da31fc26b40c3b2e41b16425553be661cfea9820

SHA512
4aeba9e0afa0883e8740d896d5de538b6270396f926146734cf77e0fa4ce23c45d4f745e521ee07ba253ddc40f449c156f6f8e8580c4162805ada380cc22caf7

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
ffd82905d03cfd7330de990e7c0e82f0

SHA1
9ebcd3d31beb905c98971106cc11304ae55224d8

SHA256
03795c8ab4a27d1ba02c9b7d6188f507d667a8d2639b261986d5e35249b001c0

SHA512
5235c72d31ed504d19d2ec76bb0841ef08a1cc17165828da2fed8b655c8e106f175d21a9c0d943396260109d9e607cb7c75be657d882d4d40aa2a67aea788423

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
b4c3942960f8c568deb0a22e26886dc6

SHA1
c400c95ef27dd5434e15c7ab0d2a3490156f2b5d

SHA256
0bb56acd975ff5e7300a8e3f50bc457d8f7239f84edf61d9658909daef5529d7

SHA512
9c4575481124870a298ea9d84456b2db3d0a7cc17c4f1a3863d28ce3a916c57d21dc1b900fa503ed9ce401ce4972f2ac3bf2143a0b38207ef7ad9686b12556a5

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
9b3df88331df0feeed25c32f0f0fc38c

SHA1
63b61f2019072fcf8c9b6afc4b45aa74270ed792

SHA256
40b0652c197372a02e76d44ff6cda1a5a36a1efe9b9e794b9526e760d1404da5

SHA512
53ce43727f13780bc879a4c48347c02c7354326c56555de5ede6088056427a4148e8db72f85ea43a9cdbb3a5bb677d2500e160aea8c748cbc1a653e0251b1a75

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
a3ccd53c53a3ee02c00077183171d90e

SHA1
cfd820ebca9907da85ce083cd280dd8a9d37d496

SHA256
87da88b4d6bac88efe8e0d2b73d8a2efada4030ee899012ccbfff776e34efc55

SHA512
e629b07c8e4ce3b5a8a7a401d90792acecb560559f014c10f5f35d4b5b6531e72c38ad178aba2e30f0f385a9318aef9343ac33bf6fb93877171ddb2c5781711c

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
fcd1e01b2449e5734ccc56359f228bbb

SHA1
fe7c2cd506bc7cae44273d9c8bec497fde996845

SHA256
441576a6d033d6238d0d4122c485c8ddbc26c4660f555346f9e7210a9307df9d

SHA512
db2a09df5efe4c3f397b914eacc18f0e5c268396610790b0edc80a556a908f806fef428e2769f20a9a1c17e1900edfd7a1ac2071373b72a4d003f56754472108

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
575af4ea55e72541f0bd135a127b9666

SHA1
1edb99478b8a7bb150a1c60d4a9895c6e5ce909c

SHA256
af94307dfcc655ae73e7fe461033aa5b4879de6382f99f4a067d6d85ee1fc7fd

SHA512
5b08feddbd580c83037c8f5fc915a969cccaf93443b26e742e8020f0ab27e78fe49b4f10a4a9df6b5a3092cd521c50ae65e8065511bdf0deec08091a013c33db

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
5b8abd270ddea5229429864408ff1ad7

SHA1
56610246e339f082d81aac8b48172db3fe4d2c1d

SHA256
c5abca54cfbc62f7f9a5a8e9ed799eb4e2f02a4243b1492f7c37e2a4507e89c2

SHA512
d4cdddda102ed233081175db6467bb3b9ddbc8b34084e372fde33a48ad65a12d251840fb59f04b4f3eaa5f8973ac9c5aafc7550fcbc8478d95dadc7efa0a9b72

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab852A.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar862B.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

Filesize
3.4MB

MD5
be1fc0aa41556442ed25d0b48db892fc

SHA1
564f2afd1ff17fbac2ebf14f32a3e189074c2bb8

SHA256
f603da8c4cb327448f1769aa3a83f27ed5fb9e53235086f60b94364496448c18

SHA512
08ad9e2c66d2057f20db788313ca8b51230140f2413f3fabc6a96d68a91cf55073c0fac16a0f82ff7d02387bd1f407558cc0541f5f8f7d233251983119e2cc36

Download Submit
C:\lukitus-482a.htm

Filesize
8KB

MD5
5c0c0df80ccab3282868767bc26418fe

SHA1
525f4e3e2e071ceba87871fa27316a794b5dde35

SHA256
f3e24fd36b9d8962ae63df4cba569e2171a05ffcffe4989b8523f52aaeb41669

SHA512
ca958febf70c06b8b77df64b7623af4d65dac99a30d6ee25a556302bcbf55c2ea1837df48027af31869a738740fe7b2d197464a6aecc73647f3057b4efc15f71

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memory/1228-257-0x0000000000720000-0x0000000000722000-memory.dmp

Filesize
8KB

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memory/2628-260-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

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memory/2628-258-0x0000000000160000-0x0000000000162000-memory.dmp

Filesize
8KB

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memory/2628-736-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

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