Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fc98be4dca4c37…

MALICIOUS

PDF

528.5 KB Created: 2021-12-29 13:14:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: fd5a34789ca93a6a4a2577fe9fe31009 SHA-1: e825b44e3fa849cf17ad33ca37d0fd11cff4b3ae SHA-256: a4fc98be4dca4c3715355266af775c416eb193d344866847990b87ef5c807476
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4376

Heuristics 5

  • 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.
  • 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://altaamir.ipixpms.com/Rapport/public/assets/ckfinder/userfiles/files/67692622652.pdf In PDF document text
    • http://petra-dario.info/upload/datoteke/64370303841.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/161606f42eb2f5---17437089411.pdfIn PDF document text
    • https://veaodaibrahma.com/uploads/image/files/tazodifisilelobositeg.pdfIn PDF document text
    • https://beautydent.hu/editor_up/fiwurakorowipi.pdfIn PDF document text
    • http://flathead.herosuite.com/userfiles/file/73944929225.pdfIn PDF document text
    • https://wojczak.pl/userfiles/file/10846771233.pdfIn PDF document text
    • https://www.stock2morrow.com/ckfinder/userfiles/files/82917005515.pdfIn PDF document text
    • https://tonwen.org/userfiles/file/gigekezubesolut.pdfIn PDF document text
    • https://testgit.begurholidays.com/uploads/userfiles/files/19090405537.pdfIn PDF document text
    • http://yevres.fr/ckfinder/userfiles/files/runawusawomuzujajewe.pdfIn PDF document text
    • https://pasationtravellers.com/root/FCKeditor/file/70273824000.pdfIn PDF document text
    • http://market-oborudovanie.ru/upload/file/worepejuvava.pdfIn PDF document text
    • https://helicopterleasingservices.com/userfiles/files/xarivalan.pdfIn PDF document text
    • http://rancholasmonturaspremios.com/campannas/file/38077547669.pdfIn PDF document text
    • http://reopen911.info/media/file/54680448619.pdfIn PDF document text
    • https://oz.korytnica.eu/data/files/80188568941.pdfIn PDF document text
    • https://360clothing.in/home/www360cl/public_html/uploads/images/files/wigavutovafuk.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/31293536334.pdfIn PDF document text
    • http://laiyi-art.com/userfiles/file/nokulasawuda.pdfIn PDF document text
    • https://galaxy-training.com/userfiles/file/tasigipedojizok.pdfIn PDF document text
    • http://unsersohn.ch/images/file/33931537336.pdfIn PDF document text
    • http://aquamedia.cn/ckfinder/userfiles/files/fomuguvapibowipunuf.pdfIn PDF document text
    • https://oferta.lt/i/File/jixudasejivudixavabawote.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/HTGXzuRVGb4/uplcv?utm_term=probiotics+in+fermented+foods+pdfPDF 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_off0007d6bd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007d6bd.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007d6bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6BD 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0007ed61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED61 10716 bytes
SHA-256: 51d884565e84abe2ff4719f96b6b6b943dda81b76301b76669abb99763675b2f
font_02_sfnt_off000805b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x805B7 17520 bytes
SHA-256: a572ca940a57befbf87c27df52b7f7085ec646ce0963c81c259aa8ba73183db0

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