Malicious PDF — malware analysis report

Static analysis result for SHA-256 b34aaf269986baa5…

MALICIOUS

PDF

41.7 KB Created: 2020-08-12 06:55:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b618315de70c64c70cb94ec762be50a4 SHA-1: f759b89476748e685c1ee6aae66e33fb1f09167a SHA-256: b34aaf269986baa588ae1712d7aa5e932c6c5ed34e89fcb31dd486759be7bf33
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body, though heavily obfuscated, contains URLs that are consistent with the heuristic findings. The primary malicious URL identified is ttraff.com, which is known for redirecting to malicious content. The presence of numerous links, many hosted on Shopify, suggests an attempt to distribute malware or conduct phishing through a large-scale link farm.

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/wb?keyword=assistance%20dogs%20international%20public%20access%20test%20pdf In PDF document text
    • http://files.stmarksaurora.org/uploads/1/3/0/7/130739301/3074921.pdfIn PDF document text
    • http://files.abbottconstruction360.com/uploads/1/3/0/7/130739340/7422542.pdfIn PDF document text
    • http://files.clementscommunitychurch.com/uploads/1/3/1/8/131856158/8884960.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/1/0433/6680/9765/files/tanivugukanigifavixigar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/86159700396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0879/2475/files/nowowemaruzir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7233/1675/files/mavukajudij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/93703516654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/17526358836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/11259423342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6881/7562/files/raperexexutelul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/tabla_de_derivadas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/gta_5_prop_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5956/8027/files/veridevogebibele.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_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 5452 bytes
SHA-256: 9c6aa51bfaffb3ef05e8da28b2d58caa09e8f41a52f4917a21e330506e96ed1d
font_01_sfnt_off000076f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F9 10172 bytes
SHA-256: f80af60de7a987ea31983ee3cb69efba9c3c74270cd5245f3114b6cef7396951