Malicious PDF — malware analysis report

Static analysis result for SHA-256 77ee45f6f050c700…

MALICIOUS

PDF

39.9 KB Created: 2020-08-03 08:06:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62b833f3adc34baf9d8fe0e578cc5ddf SHA-1: 5f1130ec2404b57327205c9be79e38dacfd7db3c SHA-256: 77ee45f6f050c70049ed09c092c2fb19a906b18ad6acc5432702ac06339c53c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector at 'ttraff.com'. It also features a large number of links to external PDFs hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious, and the presence of redirector links indicates a phishing or malicious content delivery attempt.

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/pify?keyword=like+a+prayer+meaning In PDF document text
    • http://files.nurturefamilychiropractic.com/uploads/1/3/1/1/131164157/juval.pdfIn PDF document text
    • http://files.oceanfrontsugargliders.com/uploads/1/3/0/7/130775062/zilizifedowu_rorodezomezebo_tixasefinubara_wurezuk.pdfIn PDF document text
    • http://files.naturalhealthprotocol.com/uploads/1/3/1/3/131378780/losovenubolaf.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/1/0433/1975/4907/files/87538728247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/felamisakawubibaxejurelok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/31584620069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0207/6070/files/21519818801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7729/5521/files/sagivixuwelel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8873/0525/files/59068347278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7329/6801/files/81694816566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2949/4940/files/31356722909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6495/0938/files/dipuwexalowobofuwidov.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_off00005f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3B 5036 bytes
SHA-256: 58d14e0dc16531f7ecaf3daaa58f3a39c046393f555fab77240e507e47ef0f64
font_01_sfnt_off0000705e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x705E 10316 bytes
SHA-256: 769340e9a4b48af4340a1ff7307a59c1f8de4ab1e437d94d2b807aea0b955187

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