Analysis
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max time kernel
82s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
25-01-2023 10:20
Static task
static1
Behavioral task
behavioral1
Sample
informeCritico.pdf
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
informeCritico.pdf
Resource
win10v2004-20221111-en
General
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Target
informeCritico.pdf
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Size
23KB
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MD5
30628f0f7f9870aef93172de5936bab6
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SHA1
d59b673cf773db9f4b16b806825b2638a582b22b
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SHA256
f18652128eed28061610cd1b5c19d5189e3204487934ab67a5d805e0ab64e78b
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SHA512
e463573725664ce2f3503714a8f292defe3cbf76806ef3c4fe381be918056496760ca06f862eed8433935f69284029e97ebe1c7720dffcea382708a390030561
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SSDEEP
384:YPH1+0O5hhSLH6LS19rMKAN90SVnErRPHVhJp3SbEQSVnEbaCPHLh61SVnELaW8r:oHoJH8aLS/DcueEVHDjibBeE9HVSeERa
Malware Config
Signatures
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Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 40fdc424af30d901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000006c734e3992a3c344b458d64ee57f61ae000000000200000000001066000000010000200000004c86e1d5810ad1ae2ae52a1151bb9d1c2290e597cf69c893daf60eccd4f83cc7000000000e80000000020000200000002118e45a49109b9eeaba9266ae2391acbef24ce1ab4619f443c62d9378df86912000000004ecd048517f948e94c29e6a31ebe5cd0ec1f8b971c94fb43dfa418285d27caa40000000c726d5b8bcadc3559b5f45def70c5433be87fa3b676452492a44d1fd1cc3b8bc7a5cfe35741cad654316b03a9c424284872d048f6c6268b32d6f72e0e5f20ff7 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{4AAAF411-9CA2-11ED-A064-6A6CB2F85B9F} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "381410612" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1508 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
AcroRd32.exeiexplore.exeIEXPLORE.EXEpid process 968 AcroRd32.exe 968 AcroRd32.exe 1508 iexplore.exe 1508 iexplore.exe 1272 IEXPLORE.EXE 1272 IEXPLORE.EXE 1272 IEXPLORE.EXE 1272 IEXPLORE.EXE 968 AcroRd32.exe 968 AcroRd32.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
AcroRd32.exeiexplore.exedescription pid process target process PID 968 wrote to memory of 1508 968 AcroRd32.exe iexplore.exe PID 968 wrote to memory of 1508 968 AcroRd32.exe iexplore.exe PID 968 wrote to memory of 1508 968 AcroRd32.exe iexplore.exe PID 968 wrote to memory of 1508 968 AcroRd32.exe iexplore.exe PID 1508 wrote to memory of 1272 1508 iexplore.exe IEXPLORE.EXE PID 1508 wrote to memory of 1272 1508 iexplore.exe IEXPLORE.EXE PID 1508 wrote to memory of 1272 1508 iexplore.exe IEXPLORE.EXE PID 1508 wrote to memory of 1272 1508 iexplore.exe IEXPLORE.EXE
Processes
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C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\informeCritico.pdf"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" http://198.27.82.39:8000/hola.html2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1508 CREDAT:275457 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\2T4W1DW8.txtFilesize
603B
MD5394d7cf8fdaf307f2f5cb586587f8ec8
SHA149f345877b7b47ed06c7187c641ad025fb4c7ed1
SHA256a11409b7371581e5a0291a7d0eca25ef7c1a2d0215177762899072edc903aca2
SHA5121aba1049070b3c35bc54b03d42210e8c72f6d8624fcd125a3c88164a65edd561e00b55ec27296f00650daf4c0772c521c8da172875928b67139a4cb562d8c852
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memory/968-54-0x0000000075501000-0x0000000075503000-memory.dmpFilesize
8KB