Analysis
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max time kernel
135s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
02-05-2023 01:03
Static task
static1
Behavioral task
behavioral1
Sample
Monoxidex64.html
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Monoxidex64.html
Resource
win10v2004-20230221-en
General
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Target
Monoxidex64.html
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Size
118KB
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MD5
80ee810cb236876f5b5ef1293eef8d2b
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SHA1
dc0245824fb44abbfc839b6aaed96619bd25d1a4
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SHA256
b91b948c04397d3d32ccb2a0fd2687535291d4e2aa8a70b5b3b96d47a2854979
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SHA512
315cea9e3a2c67164b313d4072ecb17a11e0c6988462904f32e071115fe8ae939565f9636bfdaee6827d275e332f831fd06770f3621c8d79f773911efee78bc3
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SSDEEP
1536:756rCR29C0pe5tKSXKovDI8Xu8e68x/gF2AMdg73Mcru:gJPpeLKIKoLle8e68x/gF2AMdggcru
Malware Config
Signatures
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000051d6db365ce0f843a8e6cfaf226c4d2b00000000020000000000106600000001000020000000b427b3fe3eb64f0917ed767de32c39b8dbbea962603f3d2d07c9920243c3a5cf000000000e800000000200002000000055897a9b164f9ce64110b5812636bc51963d471be53d46262bf08db1bd7c6eb920000000e539750716a1b585dcfa925aae52d07ba7bab9460ea5ebf6d96a8ab9cd30b79440000000f736ae6b2194b44ba5ff60206c3be088918f41528348792f077fc39082c903b7c7aae366015356f237803c0aa442c976e3bc04b375b7896c02a69edb2eae0357 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 90dfefc8a27cd901 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3119755776" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000051d6db365ce0f843a8e6cfaf226c4d2b00000000020000000000106600000001000020000000d48882dcc89722458a319a730bc210b9639fb21b974f3a1a92c6b73db8b6a8e2000000000e8000000002000020000000f923144fc7e17601d1419d12a43416be7885d42aa50e4139e38826f3d04a4c6820000000ac241171587a6090577f6b086a3c11bce86ae5182b051f39f30a091843e39723400000000f5ba847028f1deac50fa5e73a0c365da375cd8027bc4a2835ab6ff4b28216eabe059a0fb070e55379a8ba81e9e3e774047f6956a9432ad60e8def64c3bc87f0 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\IESettingSync IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3119755776" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "389761576" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31030434" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3128977235" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 608100c9a27cd901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{E50706C6-E895-11ED-8227-4E971EADBCD6} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31030434" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31030434" IEXPLORE.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1516 iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1516 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1516 iexplore.exe 1516 iexplore.exe 1916 IEXPLORE.EXE 1916 IEXPLORE.EXE 1916 IEXPLORE.EXE 1916 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1516 wrote to memory of 1916 1516 iexplore.exe 84 PID 1516 wrote to memory of 1916 1516 iexplore.exe 84 PID 1516 wrote to memory of 1916 1516 iexplore.exe 84
Processes
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\Monoxidex64.html1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1516 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1516 CREDAT:17410 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1916
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD51e391ce24e7ed996e412d5edf310ccda
SHA14f23a6cca7e719ca6df97b491aa421f4c9770f7d
SHA2565276eca80f733056a477e1a10b8d91d4d2292ba2bfc424e1638af80301aefa8f
SHA5122e78d95590e77b91ead8ab8ce6568243684eb56af7facf1e646207fb767dc1d54f3aae3872506bca59de886e5e2a689892c8a6cd5d9a32b1b64e183d10e27e48
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize434B
MD5ddea7ffc850430f780c77d06e4d0a136
SHA17eadd27a4a05ff1dd2b6cdaad3bab9ee09926526
SHA2564b2ea527718bc11d7e594df0abb29fe6292a1f326da5cf78e6e491d9221826ad
SHA512fe89946e7558769e5147312b88559a22b5e9d679cf71824774a6e23b7d2ce9e02792610acacf5309769d66a29e7be333849ebdea2a096da218a5ffa69c9d5dec
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee