Malicious PDF — malware analysis report

Static analysis result for SHA-256 9418794867bad8dd…

MALICIOUS

PDF

555.1 KB Created: 2022-02-02 09:05:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: c53547a0a7c1dc0d99d655f84c28e206 SHA-1: 59796c670b9ad6e0ae0d6840ea0575c2cd0ad684 SHA-256: 9418794867bad8dd0143959af75536880060842adab5f41e680e424e0b43f444
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is identified as a malicious PDF by ClamAV, specifically flagged as a phishing trojan. It contains embedded JavaScript and external URIs pointing to SEO redirectors, which are commonly used in phishing campaigns to lure victims with promises of free downloads. The PDF also links to files hosted on compromised WordPress upload directories, suggesting a multi-stage attack designed to deliver further malicious payloads.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4277

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://lovig.co.za/XSRYdR1H?utm_term=the+guide+handbook PDF link annotation
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16166565b586d7---44534219458.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16178c8c14a100---6315698748.pdfIn PDF document text
    • http://kusadasidentalclinic.com/img/userfiles/files/29787021532.pdfIn PDF document text
    • http://alda.pl/ckfinder/userfiles/files/8922121726.pdfIn PDF document text
    • https://unifor975.ca/userfiles/file/49749222626.pdfIn PDF document text
    • https://xn--fiqa735be48e.com/upload/files/tugufibupo.pdfIn PDF document text
    • http://sure2trips.com/bot/ckfinder/uf/files/42805399678.pdfIn PDF document text
    • http://kientrucmoi.com.vn/admin/kcfinder/upload/files/povuzatipuxopawefupibik.pdfIn PDF document text
    • http://af.ssla.ru/images/fornews/files/61933814883.pdfIn PDF document text
    • https://nepaltravelsandtrekking.com/userfiles/file/vagelu.pdfIn PDF document text
    • http://tuzoltosagmihald.hu/userfiles/file/42793468558.pdfIn PDF document text
    • http://bernardthevenet.fr/ckfinder/userfiles/files/29738036966.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/e157de541ab55cacce0d7a659e80ae1f/jisozegugekexotodogadifa.pdfIn PDF document text
    • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/4e6137458d0fe3a02f2fe558c1d64a76/mivazunodimoziramazow.pdfIn PDF document text
    • http://kondicionery-bronnitsy.ru/upload_picture/file/63843766922.pdfIn PDF document text
    • https://kmkmekanik.com/upload/ckfinder/files/muromokufijepafotedit.pdfIn PDF document text
    • http://farmaciacogliate.it/userfiles/files/ganep.pdfIn PDF document text
    • https://flour.co.uk/ckfinder/userfiles/files/fowapapalupotojurobuzodej.pdfIn PDF document text
    • https://foodsafebox.com/ckfinder/userfiles/files/nibavozup.pdfIn PDF document text
    • http://iwebcambodia.com/admin/kcfinder/upload/files/xefaxekiluzajokepomo.pdfIn PDF document text
    • http://bienbao.net/uploads/files/87661950840.pdfIn PDF document text
    • http://eigo-manabo.com/app/webroot/js/kcfinder/upload/files/rukogeloxigarimilijex.pdfIn PDF document text
    • https://korovin.org/site/img_ufiles/noxezedelaguxeguj.pdfIn PDF document text
    • http://permagnet.com/upload_files/file/211225235300396549p997zl.pdfIn PDF document text
    • http://ellenia3.eu/userfiles/files/4133437950.pdfIn PDF document text
    • https://sd.martabemitrasosial.com/editor/files/kisubofem.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1611b97145e1c4---wifewikitelovotatafomakam.pdfIn 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00083951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83951 10412 bytes
SHA-256: 50ab4148ccc0c77cbbbfcb299a2dc40ac1fd43114819112cee34498b1dc9fb2e
font_01_sfnt_off00085088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85088 20476 bytes
SHA-256: 5197fee6e6291294667dc9201c449496a0d32ca1cb5840fd4c2184693c4f6abb
font_02_sfnt_off0008862d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8862D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9