Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 10c6913a398bd0c7…

MALICIOUS

PDF / .VIR

428.7 KB Created: 2024-04-02 06:47:15 Authoring application: Adobe PDF Library 9.0 First seen: 2024-07-06
MD5: fb73ace72a37b1f978919629e99a2c3e SHA-1: f4dd88ba3b0f881f067f61e601eb7c58469c1577 SHA-256: 10c6913a398bd0c7cf5061e36e0ed4bd1cafd7a03311e5c11ea7774540a6a928
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9048

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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 https://www.jdpmedoc.info/openx/www/delivery/ck.php?ct=1&oaparams=2__bannerid=41__zoneid=20__cb=33706b2527__oadest=https://narrative.georgetown.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wumumivajib.supremainmobiliaria.com/f/52333 In PDF document text
    • http://fialki.su/links.php?go=https://themis.asu.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tedibogazu.ibcphoenix.com/f/79628162In PDF document text
    • https://www.web2work.de/show.php?url=https://assets.website-files.com/65ffcff8510d91d4bb8c85fa/66338365e1335d1d3ec3d942_40002590226.pdfIn PDF document text
    • https://ebonyporn.su/xxx.php?link=video-bookmark&skip_sell=true&url=https://fsp.unc.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xadupimoga.theplazahotelbalanga.com/f/578407996In PDF document text
    • http://www.yourteenbabe.com/trd.php?linkout=https://my.de.marist.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zulevasikov.sharynideas.com/f/42052890In PDF document text
    • https://www.webtender.com/cgi-bin/goto/index/296?https://myconnect.waynesburg.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sotatibejisugi.manabi-subete.com/f/16826In PDF document text
    • https://rings.ru/r/?url=https://myportal.cccs.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://denokisekejuza.gfxtoolkit.com/f/65699304In PDF document text
    • http://lonelyblogs.com/link.php?l=https://mdphd.ouhsc.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zopakezageb.supremainmobiliaria.com/f/623270869In PDF document text
    • http://italika-ural.ru/go.php?url=https://myuagm.uagm.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://kopimefakiba.salvaralbucardo.com/f/224311048In PDF document text
    • https://arural.org/es/redirect?url=https://assets.website-files.com/66001be218c4b76260f5b728/663383f0996cc5693d571fad_dotateponanaletez.pdfIn PDF document text
    • https://norma-t.ru/bitrix/click.php?anything=here&goto=https://assets.website-files.com/65ffcff8510d91d4bb8c85fa/66338388c3ba15f9e513598d_mategaxase.pdfIn PDF document text
    • http://www.intelligen-t.ru/go/?url=https://goahotels.com/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://lagag.skyangelus.com/f/14556In PDF document text
    • https://www.ewind.cz/index.php?page=foto_video/redirect&url=https://assets.website-files.com/66000ac7b5ae78d5554850f1/663383d8220a9928e67a3c0c_50872193107.pdfIn PDF document text
    • http://www.criespana.com/modulos/midioma.php?idioma=en&pag=https://assets.website-files.com/65e87a2a516a47cc709ffffc/6633828481e9d26816a26f20_jojerem.pdfIn PDF document text
    • https://autodemontageveenendaal.nl/https://chesapeakebay.umd.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://luganiwuweletu.club-directory.com/f/27236759/In PDF document text
    • http://www.macarthurservices.com/asp/tallier.asp?ListID=300&targetid=https://narrative.georgetown.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fomus.mytickethomeband.com/f/7075&source=onlinelistIn PDF document text
    • https://sebirepifutemi.haviol.co.za/93271596707842048349829307?naloxutakolafosowuzawamabudaluro=lovufozebavosefolafefinemuxegipodezerokafarikakimuluboguzamowiromakixupifugajebifemopipusekijuxedubaluromebasajatazoxudikomepupijajirorijudamujuwomeronefufonumemagojaxozabibomufiredamutupekuvitamitumuganufiv&keyword=saucony+guide+15+vs+ride+15&kozevegarumugegafefopolizuxurimujojiw=nevegomapemorebuguzaxatitobudoduvinapipafowodulaninujesutolojarofarizoxuzifokijovudipinadebujofatugosonebesefofuviwitenonidawekilabodanisujIn PDF document text
    • http://idcbeauty.com/jp/blog/?wptouch_switch=mobile&redirect=https://artgallery.umd.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://dotigigek.sentineltr.com/f/622229986In PDF document text
    • https://thenewindianexpresskozhikode.localnewspapers.today/jump.php?link=https://paine.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sagawegidifuwez.sharynideas.com/f/56101451&PublicationName=The%20New%20Indian%20Express%20Kozhikode&PublicationFileName=20122158tk&PublicationDate=2022-06-07%2000:00:00.000&CleanURL=thenewindianexpresskozhikode.localnewspapers.today&linkURL=https://paine.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sagawegidifuwez.sharynideas.com/f/56101451&PublicationSite=201In PDF document text
    • https://sebirepifutemi.haviol.co.za/93271596707842048349829307?naloxutakolafosowuzawamabudaluro=lovufozebavosefolafefinemuxegipodezerokafarikakimuluboguzamowiromakixupifugajebifemopipusekijuxedubaluromebasajatazoxudikomepupijajirorijudamujuwomeronefufonumemagojaxozabibomufiredamutupekuvitamitumuganuPDF link annotation
    • https://sebirepifutemi.haviol.co.za/93271596707842048349829307?naloxutakolafosowuzawamabudaluro=lovufozebavosefolafefinemuxegipodezerokafarikakimuluboguzamowiromakixupifugajebifemopipusekijuxedubaluromebasajatazoxudikomepupijajirorijudamujuwomeronefufonumemagojaxozabibomufiredamutupekuvitamitumuganufiv&keyword=saucony+guide+15+vs+ride+15&kozevegarumugegafefopolizuxurimujojiw=nevegomapemorebuguzaxatitobudoduvinapipafowodulaninujesutolojarofarizoxuzifokijovudipinadebujofatugosonebesefofuviwitenoniPDF link annotation
    • https://soutack.blogsky.com/dailylink/?go=https://uploads-ssl.webflow.com/66001708e3b61b1d7299ad38/66337ff9ef086e8525041da0_pawosusak.pdf&id=17In PDF document text
    • https://es.catholic.net/ligas/ligasframe.phtml?liga=https://myconnect.waynesburg.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://lukivofufipado.mytickethomeband.com/f/35093In 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_off00065b01.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00065b01.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00065b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B01 17140 bytes
SHA-256: d3d848cc5b8ddeabbeeacbc9c7cc365fae7c325c6584a5f03b79bc69a51239a4
font_01_sfnt_off000687ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687BA 11272 bytes
SHA-256: 62f958da52bddef16211cc3774efbdc8dd3218b9e684641dc58543c77b71d5d8