Analysis
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max time kernel
138s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03/02/2023, 15:35
Static task
static1
Behavioral task
behavioral1
Sample
SKlauncher 3.0.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
SKlauncher 3.0.exe
Resource
win10v2004-20221111-en
General
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Target
SKlauncher 3.0.exe
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Size
1.2MB
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MD5
32c7e3347f8e532e675d154eb07f4ccf
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SHA1
5ca004745e2cdab497a7d6ef29c7efb25dc4046d
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SHA256
107bb526c374d6fd9f45317c0c16e83ab50076f2bcd630caf3d6794596fae69b
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SHA512
c82f3a01719f30cbb876a1395fda713ddba07b570bc188515b1b705e54e15a7cca5f71f741d51763f63aa5f40e00df06f63b341ed4db6b1be87b3ee59460dbe2
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SSDEEP
24576:Dh199z42ojP6a7HJlF9eu5XFQZSIZeNGdmEE8H17UBcegl:R9zbgH3euNFQZr/oEE892cfl
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{CA2D2F11-A3E0-11ED-8C11-42FEA5F7B9B2} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MINIE iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000083d93af89f60d94db038daea1bb3484300000000020000000000106600000001000020000000dee3dc3543f979cde4378549368ba0640956aa4e3cfd9161d383e158a2b577b5000000000e8000000002000020000000fd86c3f50b10ab13c0ad365280aa7c4f1a73a35738e3e2adb67b8eafacef739b200000000c8aaf2f4ac6d44330b12357291239eb58e188dfbe91dfb34ae47e30b942e228400000004df3ca957e7c6074782a1e6a4f3031b22a899e4d6f012c5cb7f29a715e77429a2c80d203eb03e2f5ac0e607042681c429ad7f4a349e05f4ef257b0a3b6c00508 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 60ad6da7ed37d901 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000083d93af89f60d94db038daea1bb34843000000000200000000001066000000010000200000009b18a055568234373dce83cd17171cf36d2ec6f37ec0866c23f2094f45218738000000000e80000000020000200000003f141ec4bd1a2bb25aa8c8b262e9b6bdbd7dc997f6601ab2eadc07fc945c44f2900000008741aca7fa4a0749117e6c084b788d2052c8ffd467039e892635a170a74f0bf753089668898b15867e40066ecaead8077d9c1181855f15ef9292f1c54c5e13521f36cec6789f9521109768bc55a952cd19e04348a516ffa5facc3bfd9d05364939f8962a749f147e0ae1c05c56708a970b0bbdc92269e5bba0df4732758b61ba78014551a88ab8432306d435b87862d940000000e978548cb4586ea8a18dbc81c7a3e7eecc89de72be2e76948972b771240e3eac419f6218fdd2e9e9740203eca9ed568db3ae56b132624880533e2ecb7122a30b iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "382207113" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1748 iexplore.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1748 iexplore.exe 1748 iexplore.exe 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE 1204 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1720 wrote to memory of 1748 1720 SKlauncher 3.0.exe 26 PID 1720 wrote to memory of 1748 1720 SKlauncher 3.0.exe 26 PID 1720 wrote to memory of 1748 1720 SKlauncher 3.0.exe 26 PID 1720 wrote to memory of 1748 1720 SKlauncher 3.0.exe 26 PID 1748 wrote to memory of 1204 1748 iexplore.exe 28 PID 1748 wrote to memory of 1204 1748 iexplore.exe 28 PID 1748 wrote to memory of 1204 1748 iexplore.exe 28 PID 1748 wrote to memory of 1204 1748 iexplore.exe 28 PID 1748 wrote to memory of 1204 1748 iexplore.exe 28 PID 1748 wrote to memory of 1204 1748 iexplore.exe 28 PID 1748 wrote to memory of 1204 1748 iexplore.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\SKlauncher 3.0.exe"C:\Users\Admin\AppData\Local\Temp\SKlauncher 3.0.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" https://adoptium.net/2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1748 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1748 CREDAT:275457 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1204
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
61KB
MD5fc4666cbca561e864e7fdf883a9e6661
SHA12f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5
SHA25610f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b
SHA512c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d
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Filesize
1KB
MD5a266bb7dcc38a562631361bbf61dd11b
SHA13b1efd3a66ea28b16697394703a72ca340a05bd5
SHA256df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e
SHA5120da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5235edfbf7d02ca6c7a2cd51e3f038e8d
SHA1747e0f1d057b74d6715040c775fb0d0cc1b0ca05
SHA256f36bf6d2ec8bbf57cfbdaec6e61024e60562993f65ba2b7e7a4564bc9d0e1c57
SHA512dd41083b32a083a01dd3787c895f5b12d8085069a23b783f3c230ceeafebfc05201519b2ae72b93ddfd4b15e3b4a9d46ceff027d2026ee96b9bc46d6980e9289
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
Filesize242B
MD57cba21296a35fab1137d109133ace6dd
SHA197855444768fe22f410c51be5f1422a426a4cdfe
SHA2562debcf202212a42929e474179f941efa925505427450d03111fa730800c13ae9
SHA512a7a98839af4f3558d53ddadb22bb62564da047d4064db2cbef786536549fb24eb643b70195a850afa1c39d7411efbcfd96471453e3d9c451ea8b77638688dfb9
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Filesize
7KB
MD52bbf8cab14655fd15a22ce857809f319
SHA136fa48c94d4f395f8708cfe843e5940e787f87ea
SHA256cd3f64a26324bf06fac6c9c04f1423b54ec28fc50a9b9ede0896470425d32838
SHA51244df199e7e35c2c40310ceace8c04201643964dc4332fa79702fe737104ddb8849326392cb767bbeffbff619e8635c0e34e69b8ca53444e5a7b2d8e48b9a53d8
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Filesize
606B
MD50a1885929e27b2b7776a8caa26ece981
SHA16bc196c4e523604b6aa327f4ecf0de908d3df866
SHA2562d1ec13811e6b1e3438e6fc222bbcf027dbe5da459886322fd09ece2d1aeb69a
SHA5122b4d44246bcc74e026d49734cee4349a815042c6eb7e25114c6f8a0332c2e8a07fe67e6d7e717b8bcb4aab112a9eb978babf7de6992d2cf3ca2b433306cf7b86