Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ba319bb8c6e3e0d…

MALICIOUS

PDF

41.2 KB Created: 2020-08-14 20:40:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3eab0998a41fd42b227c95a20868ad2f SHA-1: 88b2eba55cdf8d0ef6447291f55b6ed6d225d7d5 SHA-256: 4ba319bb8c6e3e0d079d896cb1734e8fb9d3aef20d39f0edd4da0a19ae83f343
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically to 'https://ttraff.com/wb?keyword=queen%20bohemian%20rhapsody%20easy%20piano%20pdf'. This indicates a social engineering attempt to trick users into visiting a potentially harmful site. The document body itself is heavily obfuscated but contains references to the lure and the PDF creation tool.

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=queen%20bohemian%20rhapsody%20easy%20piano%20pdf In PDF document text
    • http://files.cherylmillar.com/uploads/1/3/1/4/131454238/e8af06.pdfIn PDF document text
    • http://files.nashville-reiki.com/uploads/1/3/1/8/131872017/pafodamipudem.pdfIn PDF document text
    • http://xewugegu.salemlakemills.com/uploads/1/3/1/4/131483200/ce75ad2216.pdfIn PDF document text
    • http://borarife.breakinheartsranch.com/uploads/1/3/0/9/130968926/3365535.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/1/0435/4162/7029/files/32720541992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37144816260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0812/1242/files/70252846789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6775/8999/files/27308714639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4566/5433/files/buzasewumegera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/lejarosiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/canon_pixma_ip110_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/26398734433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/lodadosegokivamusoxep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/2003_ford_windstar_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/venom_song_lyrics.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_off000061ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AE 5552 bytes
SHA-256: 0483ce970c318f603ee2169509049f7280afacf9c98d99209cd9bf0db1171e1b
font_01_sfnt_off00007459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7459 10460 bytes
SHA-256: 428454317b4d1e67a0440c1e9388a0a6edb414c1955eb4391750b2fe8152ebfd

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