Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 7dabd5574eab809d…

MALICIOUS

PDF / .VIR

577.1 KB Created: 2024-03-03 16:17:38 Authoring application: PDFBox First seen: 2025-02-12
MD5: 5f47cf694252f6b7e1793bdcfcf1ad2c SHA-1: 38dbd2f752a7bd4af0e0ffe7595473683934d5ec SHA-256: 7dabd5574eab809d9031e7b628c5c01f9208ad5d1259f6c8bf032085cc3330c5
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8577

Heuristics 8

  • 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://redeemerlutheran.us/church/faith/sermons/?show&url=https://norsemenpapa.org/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://bosabexeronab.thiranmanamalai.com/f/73664310 In PDF document text
    • https://modding-union.com/index.php?thememode=mobile;redirect=https://modding-union.com/index.php?thememode=mobile;redirect=https://raysmtb.com/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://radusikatofawil.gfxtoolkit.com/f/92811In PDF document text
    • https://san-d.ru/bitrix/redirect.php?goto=https://my.southwest.tn.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://romofutijuta.gmcalaya.com/f/4534In PDF document text
    • https://www.insidetheleague.com/RedirectMe1.asp?URL=https://assets.website-files.com/65f01b49dd2d2ad7fba691d8/66353b162f2ec64730888728_8312165362.pdf&BannerID=92In PDF document text
    • https://submission.jsap.or.jp/changeLocale?strLocale=ja&redirectUrl=https://artful-design.stanford.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://vezavo.club-directory.com/f/21431In PDF document text
    • https://intranet.cta.org.ar/redirect.php?go=https://myportal.cccs.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xovod.supremainmobiliaria.com/f/4776In PDF document text
    • https://digitaltextile.net/goto/https://northburnabypethospital.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jesame.mytickethomeband.com/f/31168201In PDF document text
    • http://www.putridflowers.com/other/gracejackson/guestbook/go.php?url=https://assets.website-files.com/66003e78de98e0fec24d644b/66353cc5853e8ae21054113c_divevadiwiluwa.pdfIn PDF document text
    • https://aletheia2.speedymail.it/index.php?manage=campaign&adata=modify&action=click&c=62&r=969&link=https://opelotoparca.net/js/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://kodotevasiduru.club-directory.com/f/44654In PDF document text
    • http://www.madhomeclips.com/x/o.php?s=50&l=arch&u=https://vlab.amrita.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://neremimob.mytickethomeband.com/f/27881In PDF document text
    • https://darudar.org/external/?link=https://riabharti.com/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jewokodeserefa.supremainmobiliaria.com/f/52211In PDF document text
    • http://biokhimija.ru/links.php?go=https://uploads-ssl.webflow.com/65effd027802fd2587c0b84b/66353af0d8f57fd60cfe64e6_84036063969.pdfIn PDF document text
    • http://www.abc64.ru/out.php?link=https://noside-japan.com/js/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://dunoxa.sharynideas.com/f/4972In PDF document text
    • https://judomigi.norin.co.za/97347128739552574990869133?mojuluxevapagirawomaxabo=fopubigexovepalokatuzupowafodamatejowuvulidoratenobegoxumewujisosegapizugupaborobafifamegajijemuroxudikozapojegisimogupowelazowasapuwabewemapumumojewowedazupigadomifojadilapepasolapixoxodegusuxamalajajapum&keyword=business+plan+for+a+cleaning+company+pdf&favojipofevafabonatavexenivadoderiwisukidasad=bojizawuwejijunilafomenukoxepinofavufawedijofokivutotonofugetanubemonijebatixuranivakituwasexevenajusaludenajuzinadavurebajorudofejopufIn PDF document text
    • https://judomigi.norin.co.za/97347128739552574990869133?mojuluxevapagirawomaxabo=fopubigexovepalokatuzupowafodamatejowuvulidoratenobegoxumewujisosegapizugupaborobafifamegajijemuroxudikozapojegisimogupowelazowasapuwabewemapumumojewowedazupigadomifojadilapepasolapixoxodegusuxamalajajapum&keyword=businPDF link annotation
    • https://judomigi.norin.co.za/97347128739552574990869133?mojuluxevapagirawomaxabo=fopubigexovepalokatuzupowafodamatejowuvulidoratenobegoxumewujisosegapizugupaborobafifamegajijemuroxudikozapojegisimogupowelazowasapuwabewemapumumojewowedazupigadomifojadilapepasolapixoxodegusuxamalajajapum&keyword=business+plan+for+a+cleaning+company+pdf&favojipofevafabonatavexenivadoderiwisukidasad=bojizawuwejijunilafomenukoxepinofavufawedijofokivutotonofugetanubemonijebatixuranivakituwasexevenajusaludenajuzinadavuPDF link annotation
    • 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_off0008afe8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0008afe8.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0008afe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFE8 11588 bytes
SHA-256: b3eb9d803ece65f4269fcda7c85e731548e81ee8c6b781b97b8b096ecad07283
font_01_sfnt_off0008cb17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB17 15836 bytes
SHA-256: 76389df356760fb3f22c58027a2efa8a32a1a79ebaa15163b8de2b0b0e729c01