Malicious PDF — malware analysis report

Static analysis result for SHA-256 334680b85c149c73…

MALICIOUS

PDF

46.6 KB Created: 2020-08-12 11:12:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc3f33b35baef4c4f4caca28077b97c4 SHA-1: 7f56fbcac47aad8b424190529c4a2e69cb70410a SHA-256: 334680b85c149c730880411df1b7d28d3b5114602ed4a5ad4101ef90b1161f22
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=astronomy+merit+badge+pamphlet+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of numerous other external PDF links, identified by the PDF_SEO_LINK_FARM heuristic, further supports a campaign distributing malicious content. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=astronomy+merit+badge+pamphlet+pdf In PDF document text
    • http://files.threeriversautomodelers.net/uploads/1/3/1/4/131411199/7939a7b4.pdfIn PDF document text
    • http://files.cyclingsportscenter.com/uploads/1/3/1/4/131452903/2136782.pdfIn PDF document text
    • http://tamiwavi.lidiarussellphotography.com/uploads/1/3/0/8/130874524/8508513.pdfIn PDF document text
    • http://files.greenideasdurham.co.uk/uploads/1/3/1/4/131452811/0e40b747.pdfIn PDF document text
    • http://files.udga.org/uploads/1/3/1/8/131871569/vubiv-wizesemimope.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/1/0431/5634/0890/files/63918480512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/xuxokakuxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4690/3701/files/10565834357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3265/8588/files/27654881287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7047/9768/files/14938750050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2670/2755/files/jopinobilixoxijedegujagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4986/1791/files/65025412015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3292/0732/files/59782797167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/piccolo_trumpet_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2147/5738/files/27369292761.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_off00007834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7834 5688 bytes
SHA-256: 001669f7f1195d72b746b9ea75ba65c87b2c88f2575c213051bbe58bef91a3c5
font_01_sfnt_off00008b59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B59 9840 bytes
SHA-256: 7eb2135b3daf1a6ae140357b64ce2034fcb44b8afda294814a1103f6dd438d43

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