Malicious PDF — malware analysis report

Static analysis result for SHA-256 efc87985e73f6e1d…

MALICIOUS

PDF

45.3 KB Created: 2020-08-06 05:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ae8fc67427e4c412c349347aa026e7d SHA-1: 7f63529c4cbfb4d796d1e62faf655f760838e598 SHA-256: efc87985e73f6e1df708420db737aec24e27a183d1a797ae939588930703ada0
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, appears to contain the URL 'https://ttraff.com/pify?keyword=analogias+verbales+definicion+pdf', suggesting a lure to a phishing or malware distribution site. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine visibility for malicious content.

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=analogias+verbales+definicion+pdf In PDF document text
    • http://files.jaillewellyn.co.uk/uploads/1/3/0/7/130740011/rivex-juxezofekor.pdfIn PDF document text
    • http://tetaduzag.perthtamilchurch.com/uploads/1/3/1/4/131482962/sawusudip-mibira.pdfIn PDF document text
    • http://files.centrocha.org/uploads/1/3/0/8/130873870/7918256.pdfIn PDF document text
    • http://files.williamzubackphotographs.com/uploads/1/3/1/1/131164424/9f67ffd2.pdfIn PDF document text
    • http://files.scottkaplanphd.com/uploads/1/3/1/4/131483110/3705741.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/1/0429/1212/0998/files/rusugeditobadutej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5064/7202/files/54973546815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9350/5688/files/mexagozosetugesowid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5894/4405/files/mijaxewunexofoludim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6739/9575/files/masary_real_love.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/33522162613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7161/8723/files/46220273441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/18439824208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/95378621410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9979/0243/files/lilir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4432/8856/files/7506949120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9375/4009/files/pudatafuxefevetig.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_off00006e6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6D 5512 bytes
SHA-256: 57c0cd084c0578f2c0c2abcee9eda91b5ab1d5e7c744bc0f4394e1aca6993be3
font_01_sfnt_off00008140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8140 11288 bytes
SHA-256: b7098d5dc17cd3913d134ddf9f4ea779673973b3a2e077db10137f14df4c4593

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