Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d20bef0a13a78dc…

MALICIOUS

PDF

426.5 KB Created: 2022-01-05 00:03:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: dc167584b013d21b94efe2e6d97f8066 SHA-1: a353feac3453f190dcb4376cd2f55a1f8243ab24 SHA-256: 9d20bef0a13a78dc840aba5ed14f9ccc77a7257ad21ac8dd8e95f5edc68fdc84
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6670

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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.
  • 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://alkord.kz/app/webroot/js/kcfinder/upload/files/32359154509.pdf In PDF document text
    • http://elistaprezentow.pl/userfiles/file/tokefuzukavelej.pdfIn PDF document text
    • https://konteshamamotu.com/userfiles/file/43960959230.pdfIn PDF document text
    • http://banglenhospital.com/UserFiles/File/bixubiliwejugatagow.pdfIn PDF document text
    • http://health-bridge.in/upload/file/kekuvagi.pdfIn PDF document text
    • https://www.voyagegroupepascher.fr/public/kcfinder/upload/files/16853462923.pdfIn PDF document text
    • https://equinox-e.com/upload/files/26618701590.pdfIn PDF document text
    • https://izometal.net/mm/file/getiv.pdfIn PDF document text
    • https://htcpost.vn/vietpost.vn/img_content/file/38776824077.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/62a68e23a9de2f5cd720b1dc5d638ad5/dubojipatinoditilegajimol.pdfIn PDF document text
    • http://precisao.org/files/files/rexobugitomikusufal.pdfIn PDF document text
    • http://mbnlpc.com/assets/admin/ckeditor/kcfinder/upload/files/jaxanumajifenugiwe.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/ffa202f764b0f8e7d89ab56c9584d7d1/9915940077.pdfIn PDF document text
    • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/du46fc6stvvd1hjbm9u578ne2a/71921973839.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/d8228937de287157df01ed18044fb780/ribaremubos.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/2a595af377775f5432453823cfa67a14/milonilolonuboxuluf.pdfIn PDF document text
    • https://agnieszkapawlik.halpress.eu/userfiles/file/tifomamalixatitot.pdfIn PDF document text
    • http://k12kos.com/ckfinder/userfiles/files/xudote.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134857eccc81---bikujedukur.pdfIn PDF document text
    • http://conganbacgiang.vn/app/webroot/uploads/files/dawolimedufefusewenaz.pdfIn PDF document text
    • https://zhbiotech.com/CKEdit/upload/files/voxotaxunu.pdfIn PDF document text
    • https://dfkcnc.shopper-store.net/file/file/budanevovopige.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/TxADE9PCSUw/uplcv?utm_term=neet+2018+answer+key+with+solutionPDF 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_off00063c06.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00063c06.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00063c06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C06 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000652a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652A5 17860 bytes
SHA-256: 744db33743f6aa2fed757e93d4e1aeb5b5cbe0ffd171c166ea879f4758d84d4c
font_02_sfnt_off000680d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680D1 11076 bytes
SHA-256: 3ae189c50776f031f03d2d21ccb5144e0f3f15dfacf0adafdece082ff7275114