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Analysis
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max time kernel
150s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03/02/2023, 20:20
Static task
static1
Behavioral task
behavioral1
Sample
SKlauncher 3.0.exe
Resource
win7-20221111-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 (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser\ITBar7Height = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{CC34DEC1-A408-11ED-8965-5263E908E3CD} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000256ed27e8919d04f83812f84ee5c95da00000000020000000000106600000001000020000000aeeee718e72ca5d367c4d6fa6ea2f15d8a2d295d2e82d479e3975559aca16753000000000e8000000002000020000000c2c9ea90fd31c35e003bb52b7ea1b2a65c67cebb0a504347e1fc20ba185f38cf20000000402e84960ddd54a586c960272a3e24e4ce64be1e614d0ff910c832cacba528c54000000028448b96ba6b0e0d8ad6440f35de99c1de4f79459822f25ae54ad11bb212474027b44b1d4c39a86fb62be77d6d2e40fe34af444578a219480b7fad682eab2fa7 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 80a2c6b61538d901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "382224296" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser\ITBar7Height = "21" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000256ed27e8919d04f83812f84ee5c95da0000000002000000000010660000000100002000000002d0c6b67f3fe9558d38c5cb7d4e713d988123c7a75b50e9819fcfedb1f7ef4e000000000e80000000020000200000006528476a54fdb1b18dc5acdfd0010664572d1184f239486ae7f84b77c765ca1d90000000987d3e2d8f62790f7a845a117f741b884fe0bcbdc7743ce07b2391a0860bad381f951d6d102237958689f6687cf4b84f3cf35941b1d719429c2dcd400955f592ad27fd71af2a54227cd6237280a557b910405291a2f25627edf5da077f47640f86779a0230e6222672a0f7acd725fb8fa460f6de1e4f997b2a25c172d158f594e6e74ae0ac516cd77d4253c6b90c1f6c40000000d95ecd1ea30babc45f3960f9c688676deeec56f5651bcf0a4f96cd3b18e8272e039f85ee683db6858d4b4d698db32505685b74bdda776953bfd3375ed5d14cd2 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2044 iexplore.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 2044 iexplore.exe 2044 iexplore.exe 1872 IEXPLORE.EXE 1872 IEXPLORE.EXE 1872 IEXPLORE.EXE 1872 IEXPLORE.EXE 1872 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1724 wrote to memory of 2044 1724 SKlauncher 3.0.exe 28 PID 1724 wrote to memory of 2044 1724 SKlauncher 3.0.exe 28 PID 1724 wrote to memory of 2044 1724 SKlauncher 3.0.exe 28 PID 1724 wrote to memory of 2044 1724 SKlauncher 3.0.exe 28 PID 2044 wrote to memory of 1872 2044 iexplore.exe 30 PID 2044 wrote to memory of 1872 2044 iexplore.exe 30 PID 2044 wrote to memory of 1872 2044 iexplore.exe 30 PID 2044 wrote to memory of 1872 2044 iexplore.exe 30 PID 2044 wrote to memory of 1872 2044 iexplore.exe 30 PID 2044 wrote to memory of 1872 2044 iexplore.exe 30 PID 2044 wrote to memory of 1872 2044 iexplore.exe 30
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:1724 -
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:2044 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2044 CREDAT:275457 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1872
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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
MD5e22a5ed8297284c23d6ba39c09c75cd9
SHA1fcf829d30397c52818a0cb92cead4533213f9fab
SHA2565245398b543991a24e4c32c57e9c0145edcf0ec47cfbf098d96049da01dfd673
SHA5120f8890152c6ede4a152b06a2b7e06cfa17ae02bf66af16814462e87815a679a45a23f0bb8b48dd63695b779f65ea5ee9bbaa54d64dae4159c4005a55ffc8392e
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5454f5e3837e23b40fc1a5023e36ec74d
SHA1fadaefc8aa86057fac661a958406ec3dce6c42f9
SHA256cc64d7d21c1645f66a03b4d9396d83542ea50f567ce4e6cd7306bf711dba564d
SHA512b85c2790cc63d050b6f03d88378f385c553481101c724d18b40582e0e2accf8f6046b7f4dcb8797932a70bc8a97aa3f635f58eba8e709703cca82374907ce61f
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
Filesize242B
MD5224950b463ab19317dc637fc70ea5933
SHA14123c94c21b83ed34132ca721b97a644c56568bd
SHA2566a635740aa6df15850e10aa239669e08b79fafe064395886d67a1da411df2713
SHA5126987b2399891793fba648c922923d51ddad53d7bf38d9f5c89d0d053c1f9d7c10d80f28705d98b5b6c96270963dcf795fb9c7c4e7055629df97259fb5ca6056c
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Filesize
2KB
MD5a40bac015fbc8b05fb6db5b78fd7a408
SHA13fe1c27b84fe5a9818229442c90ae7330a58c89e
SHA25663add2ec6fb341e3565f89057255d8fa9d0067c5c5fdef4c8ffec2eff94cea5b
SHA512dd7184fbe10cd6c1ca26a16c5d88cf600f593ff38ab75063bb9cef0402892977dda84e515bc9bcdaf7e3d37ff20741c264a51302a21e080e332c8a8b3333bda8
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Filesize
608B
MD5f367fa2e3e3b8d07d9b10a4650424340
SHA10e17b9dd83a1e5b41dd316e77726be342c7567e1
SHA256c8af494965ed496ff748681abc86bf838b7ecdb9accefa8007cf71bd18e643d0
SHA512dabfae231dd7018ce975c5c6a3b2b5a37510764504678c40616155aefcf3e2f0a936860e27ba230867756b01c25ff0c579d19dc7354e9dd1bf6ef866278d4788