Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d56ff3d3a495ac9…

MALICIOUS

PDF

259.2 KB Created: 2022-03-11 19:30:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-11
MD5: 0a1554cbf15294795c23cf9adc70464c SHA-1: f63582021d03899e2615964a251a8b26830082cd SHA-256: 0d56ff3d3a495ac9cfcfb878b1859e5e4a2c3c02cb9a1941479161f5ba984021
271 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6216

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 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1621bc9fc8d61c---90322857162.pdf In PDF document text
    • http://interwork.sk/userfiles/file/38316852953.pdfIn PDF document text
    • http://myphamhelios.vn/luutru/files/29493906257.pdfIn PDF document text
    • http://zhodnoceni-penez.cz/is/images/FCKeditor/File/vodirafumiketoxokop.pdfIn PDF document text
    • https://carparts-fixture.com/file/file/28415330919.pdfIn PDF document text
    • https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/37691361949.pdfIn PDF document text
    • https://yellowmangocafe.com/userfiles/file/10819305595.pdfIn PDF document text
    • http://roocenter.ru/upload/file/xawuzalifufo.pdfIn PDF document text
    • https://www.gaiascience.com.my/assets/adminpanel/plugins/ckeditor/plugins/kcfinder/upload/files/sokesaduvugitifupavuwuf.pdfIn PDF document text
    • https://guehenno.kendalch.com/upload/files/58000515639.pdfIn PDF document text
    • https://marikakozmetika.hu/editor_up/8694342719.pdfIn PDF document text
    • https://cantellodetersiviprofessionali.it/uploads/file/rolafenojedire.pdfIn PDF document text
    • https://equipelec.fr/ckfinder/userfiles/files/xirewa.pdfIn PDF document text
    • https://dpengineerindia.com/admin/userfiles/file/noniwoxa.pdfIn PDF document text
    • http://aluminial.pnh.pt/js/ckfinder/userfiles/files/takezesutamowenizifi.pdfIn PDF document text
    • http://anm-av.de/uploads/files/nixanukapolefuxibewizoj.pdfIn PDF document text
    • https://aarushimukhwas.idealviews.com/userfiles/files/rusabazaxajoneveribidi.pdfIn PDF document text
    • http://digitalpolicycouncil.org/imagenes/file/11070650099.pdfIn PDF document text
    • http://tdbm.vn/upload/files/26948778821.pdfIn PDF document text
    • http://bioengenharia.com.br/public/libs/kcfinder/upload/files/zafakalugej.pdfIn PDF document text
    • http://szyoujin.com/UploadFile/file/20220220192223180.pdfIn PDF document text
    • http://hotelbasantresidency.com/uploads/52828683428.pdfIn PDF document text
    • https://aksusu.com/upload/files/delowadibonejufinufa.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/c70e34f76c0cd22eae5e98757cf07502/16934312196.pdfIn PDF document text
    • https://stmpallet.com/ckfinder/userfiles/files/zogifefezegaganowiliko.pdfIn PDF document text
    • http://www.ctmmaximoravenna.com/ckfinder/userfiles/files/nodagisuniliwotix.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622b11b7e582f---11561827356.pdfIn PDF document text
    • https://dsverano.com/UserFiles/File/66053561952.pdfIn PDF document text
    • https://gospel-streams.com/asset/ckfinder/userfiles/files/varufilovisugefifadi.pdfIn PDF document text
    • https://sportyou.fr/ckfinder/userfiles/files/54374224326.pdfIn PDF document text
    • https://ever-progress.com/upload/files/72750700431.pdfIn PDF document text
    • http://webyork.co.uk/kcfinder/upload/files/riniz.pdfIn PDF document text
    • http://www.groupementpecheduloir.com/ckfinder/userfiles/files/25042189050.pdfIn PDF document text
    • https://beautyyaurient.com/editor_upload/file/9194410486.pdfIn PDF document text
    • https://poetnazrul.com/kcfinder/upload/files/21995971970.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622531855b421---senikedatajobamavu.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=dalata+hotel+group+annual+reportPDF 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_off0003887f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003887f.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003887f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3887F 10372 bytes
SHA-256: 378dee5a107ee8739f8cff852b2fe866fe5a4e329626e43c1c95b6e3a0ce5a61
font_01_sfnt_off00039fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39FE4 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_02_sfnt_off0003b5e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B5E2 18260 bytes
SHA-256: c7a2c841e7630efabc6bb7bc50d496fc931ce098ec73155f69ea0bdfe3e4ce5c
font_03_sfnt_off0003e584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E584 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9