Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8cbbbd4ed60f97…

MALICIOUS

PDF

388.4 KB Created: 2022-02-02 10:57:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: aba5cefb15b491779d51eafbf7a12a17 SHA-1: 287328ad8d60d43a488eea04067288820fbb195e SHA-256: aa8cbbbd4ed60f97325a41355dcbc3d3c45cd4ffd5aa9b0cf6a88e13d937ca16
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9461

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://podar.co.za/XSRYdR1H?utm_term=ayudha+poojai+songs++in+starmusiq PDF link annotation
    • https://mariapolis.es/ckfinder/userfiles/files/nonogowiruguwa.pdfIn PDF document text
    • http://www.bsa.by/ckfinder/userfiles/files/51164205047.pdfIn PDF document text
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/ad590993155ef4e41c3e2f64a83f48e8/53417623665.pdfIn PDF document text
    • http://sostrevalli.it/userfiles/files/93808411478.pdfIn PDF document text
    • https://aleksandarshoes.com/storage/files/18053679520.pdfIn PDF document text
    • https://www.seblocation.com/ckfinder/userfiles/files/29215656554.pdfIn PDF document text
    • http://atek-ent.com/upload/file/14812559764.pdfIn PDF document text
    • http://hoanhaochemical.com/uploads/files/49552857179.pdfIn PDF document text
    • http://cambresisemploi.fr/ckfinder/userfiles/files/fekakomi.pdfIn PDF document text
    • http://vtvxm.vn/userfiles/file/zelafuvoni.pdfIn PDF document text
    • https://biorenta.lt/ckfinder/userfiles/files/46666490702.pdfIn PDF document text
    • http://gpsputhuppally.com/userfiles/file/sobubelabima.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/r30tqbqh4tevffr67o6rk0uglr/56053698747.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_off0005a853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A853 16528 bytes
SHA-256: 82cd68a0c47013f8bc5196006ae8843b9716a0619989f82d26703ef1175e13ae
font_01_sfnt_off0005d327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D327 11132 bytes
SHA-256: cd140416a4c4e1c8d2f15f465a8cec185e11482730b72fbcf2a56979d1e88d37
font_02_sfnt_off0005ec6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC6D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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