Malicious PDF — malware analysis report

Static analysis result for SHA-256 926a6dc96046774b…

MALICIOUS

PDF

44.0 KB Created: 2020-08-14 01:02:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a6c0271883ccc0c4c8cd5c094deda30 SHA-1: 7c54f40d6e68f5837447fd1a1de0ebbd27a4d1f6 SHA-256: 926a6dc96046774b0a1df04afc150e604e389f0b0d1790a9434f5d8d062ca325
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=crosswords+with+friends+answers+8%252F+9%252F+19'. This URL is presented as a lure for crossword puzzle answers. The file also contains a large number of embedded links to PDF files, many hosted on Shopify, which is indicative of a link farm or SEO poisoning tactic. The document body, though heavily obfuscated, contains the same redirector URL. No scripts were extracted from this sample.

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=crosswords+with+friends+answers+8%252F+9%252F+19 In PDF document text
    • http://files.wilsonpublicationsllc.com/uploads/1/3/1/4/131438313/lebevel.pdfIn PDF document text
    • http://tomije.buenobabe.com/uploads/1/3/0/9/130968973/wobafibogugunaf.pdfIn PDF document text
    • http://welejap.4wardproject.com/uploads/1/3/1/8/131871825/5341750.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/1/0431/4628/1122/files/amortized_complexity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8164/5736/files/hydroxyapatite_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/bozaparosovawebisimudusik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2634/1278/files/5896628643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/61079710351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/kexozepirebason.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/etiologi_xerostomia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5932/0734/files/lexical_and_grammatical_categories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/human_psychology_books_free_download_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/buvixabajabojen.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

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5B 5400 bytes
SHA-256: a0e295589f7ff870bf85701128710ca4faba586a381c2f902add04b45c373569
font_01_sfnt_off00007fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCA 10340 bytes
SHA-256: ad83c016f6bc8dc6eaa115c94296090b9dc4a9e0b3ed7b8e6d4d257632cde8be

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