Malicious PDF — malware analysis report

Static analysis result for SHA-256 782f1f64512fe66b…

MALICIOUS

PDF

44.1 KB Created: 2020-08-03 18:05:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d1298d4a7aff6dcad6391e3a22c9855 SHA-1: c57eb62fa8c01210a1f4b3cce4972acfcfbca7dc SHA-256: 782f1f64512fe66b3a6f11b15661a8366ac476c518abdd7f9f9009c1f097f99f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to medical guidelines, likely intended to trick users into clicking the malicious link. The presence of a link farm and redirector indicates an attempt to distribute malicious content or phish for information.

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=asco+guidelines+breast+cancer+pdf In PDF document text
    • http://files.mpowertheworld.net/uploads/1/3/2/7/132740415/kadisetiwebuget_rofajanagojata.pdfIn PDF document text
    • http://vewazibu.byronbayhealthycommunication.com.au/uploads/1/3/0/9/130969356/nevit.pdfIn PDF document text
    • http://files.marbella-lab.com/uploads/1/3/1/3/131379590/4cf483f29b4.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/1/0431/6705/6023/files/zorew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/42924125894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/24962208616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0729/6163/files/64784448422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4098/0643/files/83338418452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2141/8147/files/81589893194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/temewilazude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/27516580529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0993/2440/files/98922629059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3457/files/60920793908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/xolenomexesinademexom.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_off00006dce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCE 5452 bytes
SHA-256: 59c9787726016f5b225490b28a6c2eb57c87a6283f56599e0636d8e3a7561b27
font_01_sfnt_off00008061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8061 10392 bytes
SHA-256: e3c0277b8f7a9fbf205841a9df402a2a41835c9c3e5818cb35aa873c4b1a774c

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