Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f7f153f1603250…

MALICIOUS

PDF

37.0 KB Created: 2020-08-01 14:50:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3fadfc9bad52d6d182e0ae9ddd96735 SHA-1: 6e3bebdd079d9f268e617ff7fe58d6c316d77b82 SHA-256: a6f7f153f1603250d5b4b809fe7eec863445c543be8c4be6f1017f7a7e8ec806
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains text related to a 'Honda lawn mower repair manual pdf' and includes the malicious URL, suggesting a lure to download potentially harmful content. The presence of a call-to-action button heuristic further supports this. The primary malicious URL is ttraff.com, which is known for redirecting to malicious sites.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=honda+lawn+mower+repair+manual+pdf In PDF document text
    • http://files.ewengur.com/uploads/1/3/1/3/131398250/f07777454dda49.pdfIn PDF document text
    • http://files.michaelmccarthyart.com/uploads/1/3/1/4/131406222/0720a1775e0d7.pdfIn PDF document text
    • http://files.adamlilley.com/uploads/1/3/1/3/131379312/laxonezurixan.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/1/0435/5896/1315/files/87769552025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6787/4207/files/53604051542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0056/files/bezewosimixodosuvonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7047/9768/files/nirujopetifizoxis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/65015846367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9080/4893/files/52627505917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0821/1619/files/kujumen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0224/7838/files/23528600636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8306/3715/files/45219723584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/87096025189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5621/5702/files/fobanawigimeru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/vuwepaga.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_off00005499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5499 5064 bytes
SHA-256: 2f3b2b13c226a2171b3e214b4cd59d19e185109cf4bcbe84ec7fb59fc6c6e80a
font_01_sfnt_off000065cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CB 9712 bytes
SHA-256: cb481d35da0cc0cf90f570cd50dbd9c801ba4f01dd8e645210a5d91059507e89