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Analysis
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max time kernel
161s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
31/03/2023, 14:34
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://ctldl.windowsupdate.com
Resource
win10v2004-20230220-en
General
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Target
http://ctldl.windowsupdate.com
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31024116" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\microsoft.com\NumberOfSubdomains = "1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{BEE96394-CFE7-11ED-B7D7-7E7B9EA57A36} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2683921726" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000c884d0db6b01394f84d012a5eedc1d2d000000000200000000001066000000010000200000006f50398061306448d868ccba74b367dc8c0cf700dc602dc8e09cf29eec84baac000000000e800000000200002000000057432e0d991c95118f5794848520fec5135d4f74407b7b2a9bd95c30c0a1a6bf20000000e4e2057bbeb63fbec709baa07299b99fae57d7791a6e2ea772fa9e382803d4cc40000000ab1963e09a5b56ac7004a311d1f9c97652aa564aa5c148793d71b3f6be5435777313a9b6aa7a11b728a3e122fecf814a9723bfa1cea160886368e6463f9d8251 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\DOMStorage\support.microsoft.com IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2683921726" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "387047982" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\DOMStorage\microsoft.com IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\support.microsoft.com\ = "124" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\microsoft.com\Total = "124" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000c884d0db6b01394f84d012a5eedc1d2d000000000200000000001066000000010000200000007a7bfe81b693bc136b4d90e93602ddb343eb91ada92c10adef8f8ed5d59455ce000000000e8000000002000020000000af9071040630378b1b1c6a3abf68848894fc62cbc526fb17dbf120aff9a0c2a420000000f56ed9fce9b71c2abb1e5be73dbce3b7ce7bfe5c62862b2b2a904e24fa05f18640000000638c828e18abe804f6fab2a8d6b251a92b6121e74464347de4dbd20749678421365462bea5b001e464bec29037fad5e34fb355f225692cf626828fe1635a3ce0 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\IESettingSync IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000c884d0db6b01394f84d012a5eedc1d2d00000000020000000000106600000001000020000000525589595abbdff41056dd03028da636d57e0fda030b7345cea376653ce90533000000000e800000000200002000000000ce84a552198160fe8eec36f2d31c2aadb3ef57570a5fc873b6a7fffe1ce6b9200000003c2224200b62aed72f2a9045775c4fbc7f3fd2af89b1b56419f3ea7123eb7c2140000000f208ff5c69982e422cb289ac8fb87208ba37dbb440dfe10428b2b75dc538b78b389b22cce3ea5dcfa243521b17a8a2e1d0e1527374b093975887a7630632bd1b iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "124" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\microsoft.com\Total = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31024116" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e00dc7b2f463d901 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c04d26bbf463d901 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 80e0a9bcf463d901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\microsoft.com IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\support.microsoft.com\ = "0" IEXPLORE.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1048 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1048 iexplore.exe 1048 iexplore.exe 2132 IEXPLORE.EXE 2132 IEXPLORE.EXE 2132 IEXPLORE.EXE 2132 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1048 wrote to memory of 2132 1048 iexplore.exe 80 PID 1048 wrote to memory of 2132 1048 iexplore.exe 80 PID 1048 wrote to memory of 2132 1048 iexplore.exe 80
Processes
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" http://ctldl.windowsupdate.com1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1048 CREDAT:17410 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2132
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
779B
MD59384ab7f52e0e78d1d16a44577f4a394
SHA1ef6bd7d905251a84fc9c8855677d7a374e00a381
SHA256805a55c4aa3a02174c5c96e8a7ad2c47f45b151cb87a3a6f89da7cc17b4a4fc8
SHA5129f8a0786b55f02c0279e9bef90068a34c2cc2713b103a47fbfa13825942e0835d25c2f837bc34b2f31859fa14c888a403c6b30926ad2332ae6ef9b222c1fd8b3
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_1DC6D7385EA816C957BA2B715AC5C442
Filesize1KB
MD58461a037b38246996c5f98a64b5fd918
SHA1db8bf194f154ebcdedf9b0a8a9adc62d02dff008
SHA256c85675b72791f932ebe52b51bc13dcb761a469b1fbde881c6c4ef6ba93a1b36f
SHA5121ed13f73bd0e64d5609764ee65d642d3c9b658a117616e8e3ed4149b546695183f10befb51f24d471f134ddd02fd3068ea88cf949fde9c8be19bfaddff4a3880
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\69C6F6EC64E114822DF688DC12CDD86C
Filesize246B
MD51d0a8fff50703b3cd0fe946b73338c38
SHA1633e6b3d767e71019a59bb52d8b6113eabcfc5c9
SHA256e4d2f5fe958ddde3f31f91abea08e6b1e513c7cdcbe45943510efea353679204
SHA51233dae570c6cacf93fc5b0216f4f17a10b796aaaac7a94cc34272c4aea82544b195638809048af9b230e9cd3da3f587be29de291e4a30b43114bf65539706924a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_1DC6D7385EA816C957BA2B715AC5C442
Filesize446B
MD5547f11cff38547e339fce7db2f170104
SHA129e08ba75092883ca517d4657fe83748e66c6009
SHA2569a15a886013369c0fed80ece3001f45e2bd2ad78456ed04aee547cde87e44f55
SHA512bb9bf2a0e5126be7cf082d4930ffe0d18ec7a085e200e0cdb21e0af25eade1d1db6d5f3e6e77fabab63f9e1134d44cff3bbf3e84e29ffdf3271f7fc326b6821a
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
771B
MD5dd138b9d370eb20445293c742e32a943
SHA12d3398aadb0bd69b9937991ce0dd081a4840fab5
SHA256ea2b29235f5d3454f55a9a0d180d6be449ad9bd05ef6895ebbce9a7c90fb98d1
SHA512912681aead8dd81169b9b4b8268f0a561dd89fd53bbe0285be9607947219ece7f84e4d30cc487245beb0959f1343fa903c544fc074231ffa946c06c118c0e789
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Filesize
33KB
MD5c6de87ee555ba9c32f8b95b2253963f6
SHA14f1e0fc053f1bd47bf515155405e15dba3f07a79
SHA256736cbd05debaadea59f6eda99c3d8f7a7c586ad70a4a342b14ba8eb11a95a480
SHA512012c96fcd366d76d33154cb9a3cd227c77252969ca1c0785044bc59dfff190dcba34bde9b230cef57675f650845ceaa3167561796142c34812af8dc73097ca68
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
43KB
MD54c6c928daf19e2a06faf12bd2f002d2e
SHA1027d4709db809d9e9b2627b74a152aec29066ee8
SHA2562c9728c235211d8956826af42d99936b409536e6027e9162835731d5b005d462
SHA51262445364d9696d1ffa4bacb49b6d04d4d2415d3145b628885d48348c233a11fa336c5de8133564c541d73152950b33a3661f190d3f86a326ceff13cb0d52005e
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Filesize
631B
MD5fb2ed9313c602f40b7a2762acc15ff89
SHA18a390d07a8401d40cbc1a16d873911fa4cb463f5
SHA256b241d02fab4b17291af37993eb249f9303eb5897610abafac4c9f6aa6a878369
SHA5129cbcf5c7b8409494f6d543434ecaff42de8a2d0632a17931062d7d1cc130d43e61162eedb0965b545e65e0687ded4d4b51e29631568af34b157a7d02a3852508