Malicious PDF — malware analysis report

Static analysis result for SHA-256 12896198183e18be…

MALICIOUS

PDF

68.9 KB Created: 2020-08-18 15:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06fa39cd96c42c945f9215121dec116e SHA-1: 86fadbe3b22e2612e96d368bdf3be8a0cceab0d0 SHA-256: 12896198183e18bed7dfac633fa7e9541663a4b6084caba527a8baf3f6ac2b16
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector URL (ttraff.ru) identified as malicious. This suggests the document is part of a link farm or SEO poisoning scheme designed to drive traffic to malicious sites. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=form+wizard+bootstrap+4+with+validation In PDF document text
    • http://files.blindpartsonlineaustralia.com.au/uploads/1/3/0/8/130874017/49852f1445fb45c.pdfIn PDF document text
    • http://files.heartofillinoisorff.org/uploads/1/3/1/3/131379371/9586210.pdfIn PDF document text
    • http://files.dignityandgrace.com/uploads/1/3/2/6/132682745/vavovozufu.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/1/0430/1471/7597/files/40602202281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2955/7411/files/83155566580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/best_books_on_leadership_and_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/interplay_adler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7879/4917/files/tanarisapepofirevidasom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5756/0217/files/17105244535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8253/1481/files/animations_in_powerpoint_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0189/4296/files/mehndi_designs_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4714/8950/files/how_to_bypass_administrator_block.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3935/0181/files/betaina_hcl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3554/files/wurodag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1350/4150/files/advanced_english_placement_test_with_answers.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 8

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_off0000c008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC008 5584 bytes
SHA-256: 20fee3df2ea5df6d98fb6b10a27d770e9425bb3edc8acc9ce2511bb229243b68
font_01_sfnt_off0000d301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD301 15444 bytes
SHA-256: 31c4d72fdef3c684186d7af57125196032d9482e5a606df39e8c474f6d9c0cba

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