Malicious PDF — malware analysis report

Static analysis result for SHA-256 87583e67097ef75b…

MALICIOUS

PDF

227.7 KB Created: 2022-03-19 01:06:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: b77ba7ff06a18c7a19fcdd426965b186 SHA-1: 6a54c24bf79e69a5f242dc48a427cf1e1b3b8c7c SHA-256: 87583e67097ef75b1b2d8dbee90b383111610f6b687d41257c89e56a336f99e2
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8160

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 http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/162296e5655acf---90012277466.pdf In PDF document text
    • https://dnsbp.com/all4help/fckuserfiles/file/19550426051.pdfIn PDF document text
    • https://tamm.be/_files/file/makapem.pdfIn PDF document text
    • http://ibarugi.com/fckeditor/userfiles/file/56520416564.pdfIn PDF document text
    • http://ty-universe.com/image/files/20220214_163846.pdfIn PDF document text
    • https://arvikabc.com/images/uploadedimages/file/2960756187.pdfIn PDF document text
    • http://msdoubrava.cz/foto/images/file/51527828778.pdfIn PDF document text
    • https://nomaquito-travel.com/editor-images/bajelud.pdfIn PDF document text
    • http://y-mirai.biz/js/kcfinder/upload/files/foxutamed.pdfIn PDF document text
    • https://llibreriaha.com/img/events/file/sumodoxu.pdfIn PDF document text
    • https://glaskunstcentrum.nl/images/file/12609627924.pdfIn PDF document text
    • http://cannamelis.com/userfiles/file/85306859082.pdfIn PDF document text
    • http://celox-st.hr/sites/default/files/fck/file/97474229419.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/kdft1of1bc4m8hfmlt8qi440lb/wewawulenixevugopamuvu.pdfIn PDF document text
    • http://julianina.dk/upload/file/defujaxesigegofurajevoner.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=ubuntu+server+14.+04+64+bitPDF link annotation
    • https://sgpm.krakow.pl/aaeventy/kcfinder/upload/files/98351527446.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 extracted file (font_00_sfnt_off0002ee49.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002ee49.bin)

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002ee49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE49 10572 bytes
SHA-256: 052d9650cbabdb1bdf9c8332698ba39bbe64174dffa10d0277ef19a443fe68e2
font_01_sfnt_off000306a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306A6 1712 bytes
SHA-256: 631ca8c84f01fc1f591e278f46ffe5b63467985ac0bd5d939c135cf401a2b01d
font_02_sfnt_off00030ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EC0 25848 bytes
SHA-256: 6540d55dc51df4f3ec3cfd244706680892fdda32f66a44d43e8e536c538a9503
font_03_sfnt_off0003516b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3516B 16232 bytes
SHA-256: 01cd0e4798e93fb086042d610f43ddeed7bf091af48aa863f5c4a4f61b651684
font_04_sfnt_off00036744.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36744 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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