Malicious PDF — malware analysis report

Static analysis result for SHA-256 15dab4ea9a1cb246…

MALICIOUS

PDF

34.2 KB Created: 2020-08-06 18:47:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2397838d7ccae4129f7bf6218cd5e9af SHA-1: 78923917d7ab3b08162d3c37a0def99d15bfe490 SHA-256: 15dab4ea9a1cb246023b1c76d1038f812ed5167118d7407133c499f6bf1d5fea
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to mimic legitimate content. The primary redirector URL, https://ttraff.com/pify?keyword=automation+step+by+step+pdf, is flagged as malicious and indicative of a phishing or scam lure. The ML classifier strongly supports the malicious verdict.

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=automation+step+by+step+pdf In PDF document text
    • http://files.laisaycheese.com/uploads/1/3/0/7/130775062/8494142.pdfIn PDF document text
    • http://fatavo.electroreview.info/uploads/1/3/1/0/131070450/3000584.pdfIn PDF document text
    • http://files.covoc.ie/uploads/1/3/0/8/130874416/gowikuzim.pdfIn PDF document text
    • http://files.jaynardiscounts.com/uploads/1/3/1/8/131856212/zijip-rusef-xutinu.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/1/0428/9835/8432/files/zupapinited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/96146631817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/vumuwegote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4963/2415/files/bowexudazasunuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9373/7118/files/midoboxemudimirifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/64631330154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9476/8792/files/mupulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1083/3058/files/24354594015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/99198328916.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_off000048a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A5 5292 bytes
SHA-256: b2f4645cb213a1a4f0ee4320f1863f037c25d65cbde3b5d3cfc0826c51e7b7b8
font_01_sfnt_off00005a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A97 9776 bytes
SHA-256: 2de05f418b29852e0001ef8b823fcaab0f0a7a71775243489da82d5b75c5d5a6

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