Malicious PDF — malware analysis report

Static analysis result for SHA-256 85db36b7865a20a4…

MALICIOUS

PDF

48.4 KB Created: 2020-08-10 23:14:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d3f214da9f167fc5780a7fb543a2c13 SHA-1: 16f9a64edd5600dd681b8742810b5b8edcc6ec02 SHA-256: 85db36b7865a20a466e3d6561a632eb595e0cbf432657fe2d99be8e721042ac1
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the primary malicious URL and several benign-looking Shopify URLs, suggesting a link farm or SEO poisoning tactic to lure victims. The ML classifier strongly indicates maliciousness, and the presence of redirector links points to a phishing or malware distribution 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=sargam+alankar+in+english+pdf In PDF document text
    • http://wamupe.gtvip.co/uploads/1/3/0/9/130969060/vasojawajep.pdfIn PDF document text
    • http://files.epbemployeehealthcenter.com/uploads/1/3/1/4/131438604/5060935.pdfIn PDF document text
    • http://files.ladyfifteen.com/uploads/1/3/1/4/131454221/1933852.pdfIn PDF document text
    • http://files.lmmsorchestra.com/uploads/1/3/2/7/132740337/d989b74c8c.pdfIn PDF document text
    • http://fewegaz.homemaintainers.com/uploads/1/3/0/8/130814017/f3ab2f7a.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/1/0433/4800/0927/files/xebufamawud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7149/4554/files/denadarupekawimuwakodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0678/6725/files/lujodigenasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9394/0641/files/vadap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/luis_borges_el_aleph.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9071/4532/files/dowuvegokiwebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/55654514011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8073/6151/files/wipijofevalowoxibinob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/kujugizurepalupokovipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/apsale_net_click_115667_9571_art.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/lugesuporil.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 5

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_off00007f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0A 5620 bytes
SHA-256: 85359353ff95745194ec8112bcd08af9c7492a71a3b221bc9df5238e45029dd4
font_01_sfnt_off000091f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F2 10312 bytes
SHA-256: c77623cf5010d088e2f5b23bc7b2e7bc7820e65dc56deccea8553db5b324f982

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