Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f2ecba234557171…

MALICIOUS

PDF

47.5 KB Created: 2020-08-16 23:26:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 436c6e904e6178e3e6b09fad9f32392e SHA-1: cf83463ac89e60de48c7177e749a93fde3c7ca1f SHA-256: 7f2ecba23455717196f11ec4500eb92805a3ce69a2ea06da4c72c1d489e117ad
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.com, which is used in conjunction with a lure related to 'Primark king size fitted sheet white'. The document also features a large number of outbound links, many pointing to Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs and a redirector points towards a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://ttraff.com/pify?keyword=primark+king+size+fitted+sheet+white In PDF document text
    • http://saxixi.jeniballdesigns.co.uk/uploads/1/3/1/6/131606056/ritir.pdfIn PDF document text
    • http://files.cheffurdell.com/uploads/1/3/1/1/131164417/webabewin.pdfIn PDF document text
    • http://files.helsbellshandmade.com/uploads/1/3/2/3/132303205/wegagagumejimo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6454/8762/files/acquisitieplan_voorbeeld.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7319/8497/files/dsignation_des_alliages_d_aluminium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0873/6927/files/zukigigifajox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/25206869640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4287/6061/files/pdf_bhagavad_gita_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5542/3396/files/45369603431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/lamemebolaxuponopeboku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2214/5943/files/92449987593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5644/8167/files/89550447766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/rudalepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/21434078721.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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56C1 5496 bytes
SHA-256: b1f0f1d211defc8906c4f91a2978965e018b5abfc787c73909b03c85ac0e829b
font_01_sfnt_off0000694b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694B 2668 bytes
SHA-256: 969f4d68e40decc9bb98595ca83d17f90951179a153832865e397c8271e6364d
font_02_sfnt_off000074f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F2 10744 bytes
SHA-256: da8e4484818b3bbd23d3eb459c71867481c780c8876fefc25bc591e0d8bed5b6
font_03_sfnt_off000099d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99D5 16524 bytes
SHA-256: da391738690016096eea86371b25cdd20dd2057dec96c58090ad99a34960b901