Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba6f4a75e40243c9…

MALICIOUS

PDF

39.7 KB Created: 2020-08-16 00:40:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df568c771e89d44e37f44e73a19d5d5a SHA-1: 4e5c0fcd80e5af8dabf9a074d784292f0fbc5f8d SHA-256: ba6f4a75e40243c9060170ad400b5033cf444f1e60dd1d8f48f45429f3c53da2
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link pointing to ttraff.com, which is associated with malicious activity. It also hosts a large number of external PDF links, many hosted on cdn.shopify.com, suggesting a link farm for SEO poisoning or traffic generation. The document body, though corrupted, contains keywords related to health insurance and urgency, aligning with the malicious redirector's URL parameters. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=aetna+better+health+reconsideration+form+florida In PDF document text
    • http://files.rockymountainflydesign.com/uploads/1/3/1/8/131857465/xikogedogufu-pokobo-wuxulir.pdfIn PDF document text
    • http://files.nextlevelmath.com/uploads/1/3/2/6/132681448/7871584.pdfIn PDF document text
    • http://files.honestroguegames.com/uploads/1/3/1/1/131164129/xopipeluk.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/1/0432/7142/2115/files/zujiwexajiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/tajujunoradubapibatax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2273/5767/files/86007203323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6016/2713/files/school_administrative_assistant_duties_and_responsibilities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3028/1381/files/php_force_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/22380347659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7826/3718/files/82781068468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3366/4408/files/32995218595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7746/8327/files/makizukosudidaduravusip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/fusifinanalinevamenami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0221/5069/files/26858037266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0323/1908/files/alexandria_moulding_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3723/7146/files/nilipufurifamirewuzokone.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C80 5392 bytes
SHA-256: 300506cb6da9e161b5b02a4fc6cd1932b3a61cad0490b3b9071637ff1be7fb50
font_01_sfnt_off00006e9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9D 10256 bytes
SHA-256: b834f42d343a0b4f4ef1ff8b602ee423dd01a80b0cce2271721be56186958b69