Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 7bd99c79e9952b21…

MALICIOUS

PDF / .VIR

751.1 KB Created: 2024-01-02 21:21:32 Authoring application: Serif PagePlus First seen: 2024-06-27
MD5: db1e5b0584002e627895681ab1992f09 SHA-1: 9ca7755ee2fc813722e3577e62ac40338ca36663 SHA-256: 7bd99c79e9952b21761bd18f536e7a6c5fc7f266e0c0978b68f007cbfb2da1f7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0245

Heuristics 7

  • 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.
  • 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://disinotorulezef.synolo.co.za/93276231580344286898153944?luvodakanemekebebenegabijotusubotegego=fuvufupazutoxuwilogixisarunebajenisofujasojulojozuzamoridabamedaserexozutukolujurisupaxibuzatovesipuxunibonajilevatibevotuberajimiwetonimumapevujixoxukowokevuwonepejadelonakaxizunewuvoxubapigenoxegoxukutev&keyword=book+slides+template&nunibigazojonugoruwupasefeg=dujibawizovekawulilawixolujasaworixudonugobemaruferukebegadevegizobuxasetunolodifunutuvubepezinuvomukuvudovoliwirodegunezuxika PDF link annotation
    • http://urbanfantasy.horror.it/?wptouch_switch=desktop&redirect=https://umwa.memphis.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://balagoneniw.sharynideas.com/f/878784985In PDF document text
    • http://www.carbonafrica.co.ke/?mobileview_switch=mobile&redirect=https://portal.duq.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://josoketemadidad.thiranmanamalai.com/f/45308In PDF document text
    • https://www.chollolocura.es/Bye?url=https://nextdayplus.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://rogirodaw.gmcalaya.com/f/84379&asin=B08XYCYZ5CIn PDF document text
    • http://www.ictpower.com/feedcount.aspx?feed_id=1&url=https://assets.website-files.com/65dcd054a937c7d6d4979acb/66332691a573c05706fff034_jevupakenilasijulixen.pdfIn PDF document text
    • http://boletines.sutomail.com/gourl.php?enid=MjY1OQ==&url=https://mdphd.ouhsc.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://mukoxedituro.skyangelus.com/f/6806In PDF document text
    • https://hobbygenerator.com/r?link=https://assets.website-files.com/65ffe834bc476042edca559e/6633264bc9e737b98d2a4b54_ladifazul.pdf&ref=hobby=Cross-stitch&action=click&type=subredditIn PDF document text
    • https://disinotorulezef.synolo.co.za/93276231580344286898153944?luvodakanemekebebenegabijotusubotegego=fuvufupazutoxuwilogixisarunebajenisofujasojulojozuzamoridabamedaserexozutukolujurisupaxibuzatovesipuxunibonajilevatibevotuberajimiwetonimumapevujixoxukowokevuwonepejadelonakaxizunewuvoxubapigenoxegPDF link annotation
    • http://robinberthier.free.fr/mbc/href.php?lid=17&rid=5&url=https://chesapeakebay.umd.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://letad.mytickethomeband.com/f/49685052In 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_off000b6b7f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000b6b7f.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000b6b7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6B7F 15480 bytes
SHA-256: 195374b734b29b088e43418b40fb89437b8e5e7f45d0fa7c4d2b800dafd42d70
font_01_sfnt_off000b930f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB930F 11568 bytes
SHA-256: 827bbe0fbf5b50403f3c37c4faa39916deb6841ac7a22905e01531894eb4713a