Malicious PDF — malware analysis report

Static analysis result for SHA-256 089a4caaf047d547…

MALICIOUS

PDF

42.5 KB Created: 2020-08-11 20:17:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea42058ab108bb925d7b62c7cc5114d6 SHA-1: 4fa17c27253deb67a0216817c0166c9175be4f78 SHA-256: 089a4caaf047d5474796a97ddf3d2512d358b35dc46c21a1176630d123842e95
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body and embedded links suggest a lure for free downloads or information, likely a phishing or scam attempt. The ML classifier strongly indicates maliciousness, and the presence of multiple external links points towards an SEO-based link farm used for distribution.

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.ru/pify?keyword=mother+tongue+based+multilingual+education+deped+pdf In PDF document text
    • http://rotem.juliaopawska.com/uploads/1/3/1/3/131379803/donapo_tejut_noxerasekasat.pdfIn PDF document text
    • http://files.afterthefallinc.com/uploads/1/3/0/8/130874213/burifikivaberu.pdfIn PDF document text
    • http://veketudu.kreationsbykarenjewels.com/uploads/1/3/1/3/131398091/fidibudazuzip_xinotu.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/1/0430/4211/1650/files/26207254187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/11540658244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7503/4520/files/pepepoler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8089/9989/files/65457607666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8610/9086/files/acute_abdomen_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/64384019346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/1984_graphic_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7502/4549/files/wadalubaxuvuligugepedilur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/ritikevodotixabusepot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8921/6167/files/81688686227.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 4

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_off00006703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6703 5716 bytes
SHA-256: 8466cbbdc5d3a5817a223aad91251c19e73db67e7eb2169fd830a4a90d938516
font_01_sfnt_off00007a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4D 10052 bytes
SHA-256: c704a142a7c9a780dadf3e7692bd32d12dd886106e99e536850c0685fa98c968

Open this report in the interactive analyzer, or submit your own file for analysis.