Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 3fa9416f83a36c23…

MALICIOUS

PDF / .VIR

634.0 KB Created: 2024-01-02 16:47:16 Authoring application: Karbon First seen: 2024-07-06
MD5: e989a4941eec799a14004bf9a98adc03 SHA-1: b8a91a6376cfafa59e9afdf39e59c3df51604ddd SHA-256: 3fa9416f83a36c2309be4d21bbfd88c7a17168f92f0ccd38f9c866f31b5f4bfa
286 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4553

Heuristics 9

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link points directly to executable/archive payload critical PDF_DIRECT_PAYLOAD_LINK
    PDF contains a clickable HTTP(S) URI whose path ends in an executable, script, shortcut, disk image, or archive extension. Documents can legitimately link to installers, so this is a high-risk delivery indicator rather than a standalone exploit fingerprint.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.cheaptelescopes.co.uk/go.php?url=https://artgallery.umd.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://vabonosokavupo.club-directory.com/f/22688 In PDF document text
    • https://battreberoendevard.registercentrum.se/download?fileUrl=https://assets.website-files.com/65ffdddb69736ba3db2cf134/66338541368914ce549587de_30517894911.pdfIn PDF document text
    • https://www.happiness.travel/l?u=https://accessbcc.bristolcc.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jopakawewep.supremainmobiliaria.com/f/916772765In PDF document text
    • http://www.eroticlinks.net/cgi-bin/atx/out.cgi?id=739&tag=top&trade=https://connect.cuchicago.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://kumamekonofila.manabi-subete.com/f/51957927In PDF document text
    • https://progazosnabgenie.ru/myred.php?site=https://findadoc.uhmc.sunysb.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sisel.sharynideas.com/f/37728In PDF document text
    • https://www.firmendatenbanken-oesterreich.at/bannerklick.php?url=https://rayocazar.com/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://radejiwapala.supremainmobiliaria.com/f/216178488&id=606In PDF document text
    • http://ds-old.gemsite.org/download_get.php?odkazy=1&get=https://arch.rice.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tovove.skyangelus.com/f/95246608&id=8In PDF document text
    • https://employees.vaniglia.co.il/redirect.php?url=https://uploads-ssl.webflow.com/65ffdddb69736ba3db2cf134/663384ddfbf2be99eb4ec44c_zigofe.pdfIn PDF document text
    • https://bedrijfsautoonderdelen.nl/https://assets.website-files.com/65dcada20a4b70d56961f91b/6633843cd99de034b40de997_velute.pdf/In PDF document text
    • https://temples.tw/click?type=place&tpl=81322bd&place=rwcL3aXJ9Y&u=https://racernet.murraystate.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://juwurowokasu.gfxtoolkit.com/f/246648305In PDF document text
    • http://hotmomsvideo.club/out.php?link=images/4x28x102137&group=main&p=s1&link2=th&url=https://assets.website-files.com/66001f7b179511a669a16c7a/663384afc45373fd4a5eaadc_jusivozumakuzutamiposute.pdfIn PDF document text
    • http://www.plantplaces.com/perl/viewads.pl?source=searchplantslink&destination=https://assets.website-files.com/65f00a8cdb518103ca160df5/663384f5ca88604ab2d9bc17_dizekevelamawu.pdfIn PDF document text
    • http://webooo.csidenet.com/zippo/naviz.cgi?jump=311&url=https://cast.ucmerced.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://mavenafokipa.salvaralbucardo.com/f/90576588=http://zepter-tver.ruIn PDF document text
    • https://kto-chto-gde.ru/go.php?url=https://kirdey.com/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fitepudurusez.gmcalaya.com/f/43591In PDF document text
    • http://takehp.com/y-s/html/rank.cgi?mode=link&id=2292&url=https://florida.plantatlas.usf.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://luxekolaw.skyangelus.com/f/32476In PDF document text
    • http://www.internettrafficreport.com/cgi-bin/cgirdir.exe?https://my.lcc.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://disuwitadoti.skyangelus.com/f/2158993In PDF document text
    • https://palmoceanview.com/POVGbook/go.php?url=https://my.marist.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://lotepebuvejowax.mytickethomeband.com/f/55775In PDF document text
    • http://www.tesay.com.tr/en?go=https://chesapeakebay.umd.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://watari.palsaikbbq.com/f/70381In PDF document text
    • http://dzdj.cn/UpdatePushInfo.aspx?adid=5&ReturnUrl=https://intl.seattlecentral.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zilabaxi.skyangelus.com/f/3818In PDF document text
    • https://app.soupetropolis.com/redirect?banner=materia&partner=fonsecaimoveis&page=https://lakepointe1.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://nemunojinon.supremainmobiliaria.com/f/6745701&url=https://soupetropolis.com/2023/12/02/8-eventos-para-curtir-neste-fim-de-semana-em-petropolis-7/In PDF document text
    • http://www.fuckthisshemale.com/d/out?p=77&id=408646&c=0&url=https://faculty6.khai.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xuzaxupo.mytickethomeband.com/f/55506763In PDF document text
    • https://yclibraryfriends.org/links.cgi?url=https://uploads-ssl.webflow.com/65dcc39f31a0257a5ea6c960/66338385ad3c081ba6c9eb60_5179454430.pdf&marketplaceID=ATVPDKIKX0DER&qid=1702308902&s=merchant-items&sr=1-4&title=Guitar%20Pickers%20Fakebook:%20The%20Ultimate%20Sourcebook%20for%20the%20Traditional%20Guitar%20Player,%20Contains%20over%20250%20Jigs,%20Reels,%20Rags,%20HIn PDF document text
    • http://gayzvids.com/cgi-bin/crtr/out.cgi?id=114&tag=toplist&trade=https://assets.website-files.com/65ffcc785ca456b046626e18/663385415ce67c52fc0bdd37_84139876824.pdfIn PDF document text
    • http://neuro-online.ru/go/url=https://mypima-stage.pima.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tulubiw.ibcphoenix.com/f/37487In PDF document text
    • https://smsmediacontent.com/sms_click_tracking/?url=https://uploads-ssl.webflow.com/66001f7b179511a669a16c7a/663384f5a80400be117aba5c_59132252077.pdf&resource=SmsLanding&resourceid=1&uuid=20200311101039-6056-350030-bc84e24c-69bc-42bd-8bdb-6c1f8cf7f2ccIn PDF document text
    • http://www.biver.abc64.ru/out.php?link=https://uploads-ssl.webflow.com/65f00a8cdb518103ca160df5/663384b5846825e204268841_77396387654.pdfIn PDF document text
    • https://jurabipiledi.urseghy.com/95748301805547205444361412?dekomovezewarefupazawupuwogozasogavavepaxipoberonitumozumusotidajaxojepamixalozanina=fojularimevakosapofowomakusegegakobimejagarizugekododukopetafibidojokowugejidinejagunonalawitotulegowojusinerasifumitigufiraretemuwogofisinefoxepowusomitukilamogenibexujarametoxujipolularuteruxilatadowuk&utm_term=free+decodable+books+printable&fapubuxifelavotipezutanijotoxagakaduzekipelofunixarijekatovolajinifuradonenalirevixetitarawixijar=govodazebuzoxufiwebulefilugevilidofowakivaduvenegakejuvijaduxivaxunizataralelodewaxuturinomawibegaluxusarevurafebivisetuxatorivewasidunuvIn PDF document text
    • https://accaii.com/entamecamp/script?ck1=1&xno=afdf68b35c3ca533&tz=32400&scr=1920.1080.24&inw=1903&dpr=1&ori=0&tch=0&geo=1&nav=Mozilla/5.0%20In PDF document text
    • http://dougaguild.xsrv.jpanother-stories/&ttl=%E3%80%8E%E3%82%A2%E3%83%8A%E3%82%B6%E3%83%BC%E3%82%B9%E3%83%88%E3%83%BC%E3%83%AA%E3%83%BC%E3%82%BA%E3%80%8F%E3%81%AE%E5%86%8D%E6%94%BE%E9%80%81%E6%97%A5%E6%99%82%EF%BC%86%E5%8B%95%E7%94%BB%E9%85%8D%E4%BF%A1%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9%E3%81%BE%E3%81%A8%E3%82%81%EF%BD%9CNHK%E9%81%8E%E5%8E%BB%E3%81%AE%E8%A6%8B%E9%80%83%E3%81%97%E6%94%BE%E9%80%81%E3%82%92%E8%A6%96%E8%81%B4%E3%81%99%E3%82%8B%E6%96%B9%E6%B3%95%20%7C%20%E3%82%A8%E3%83%B3%E3%82%BF%E3%83%A1%E3%82%AD%E3%83%A3%E3%83%B3%E3%83%97&mile=afdf68b35c3ca533.61dce645.61e4add4.1bba.15.256.5&clk=https://lahore-kebabhouse.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://mizuwupaku.palsaikbbq.com/f/89307&lbl=NHK%E3%83%97%E3%83%A9%E3%82%B9&now=1642383771127&relay=onIn PDF document text
    • https://jurabipiledi.urseghy.com/95748301805547205444361412?dekomovezewarefupazawupuwogozasogavavepaxipoberonitumozumusotidajaxojepamixalozanina=fojularimevakosapofowomakusegegakobimejagarizugekododukopetafibidojokowugejidinejagunonalawitotulegowojusinerasifumitigufiraretemuwogofisinefoxepowusomitukPDF link annotation
    • https://jurabipiledi.urseghy.com/95748301805547205444361412?dekomovezewarefupazawupuwogozasogavavepaxipoberonitumozumusotidajaxojepamixalozanina=fojularimevakosapofowomakusegegakobimejagarizugekododukopetafibidojokowugejidinejagunonalawitotulegowojusinerasifumitigufiraretemuwogofisinefoxepowusomitukilamogenibexujarametoxujipolularuteruxilatadowuk&utm_term=free+decodable+books+printable&fapubuxifelavotipezutanijotoxagakaduzekipelofunixarijekatovolajinifuradonenalirevixetitarawixijar=govodazebuzoxPDF link annotation
    • https://account.cosmote.gr/o/login-service/fixed/logout?redirect_uri=https://midst.sabanciuniv.edu/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://gututobe.manabi-subete.com/f/39501655In PDF document text
    • https://focus-codice-sconto.digidip.net/visit?url=https://assets.website-files.com/65fffbd520ce314b47d48c63/6633849f1aa1f04bcd47a23f_37720929574.pdf&ref=jByIMu7doaNUXpY_qllhz2AAZpC61pAIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00097733.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00097733.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00097733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97733 16164 bytes
SHA-256: fd494554c7a7a2c4488382a78096c535ff133766c7221992be4f6a58596b2467
font_01_sfnt_off00098ca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98CA5 17724 bytes
SHA-256: 8b39290cdc0f9be3803be9c9d003037a6d8a168dc0ab6df58c6ddb2b23488c97
font_02_sfnt_off0009ba9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA9B 12224 bytes
SHA-256: 19c103e9559cd28c438546da7858c7db8a7aef84e1fc257b530b5a0de57e1564