Malicious PDF — malware analysis report

Static analysis result for SHA-256 869192b9b946f753…

MALICIOUS

PDF

48.2 KB Created: 2020-08-30 09:47:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bcd4f7436a5f55c882076d25545cc32 SHA-1: 790ded21905b7c26da8f756025a1ad25efd560f2 SHA-256: 869192b9b946f753ea660d6e32e0a7a80b2997e8a8393156e4882c7bad2ef34f
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com, which is used in SEO-based phishing campaigns. The document body, though heavily obfuscated, contains text and URLs that suggest a lure for free downloads, a common tactic for distributing malware or conducting phishing. The ML classifier also strongly indicated maliciousness.

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/wix?keyword=teen+gohan+combos In 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/1/0432/5670/9273/files/30959243749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/kathi_sandai_mp4_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0389/6217/files/80710983829.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_ab1ce2e910374072bfb857a175e262b6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/804ff6_f23df014f2ec4ec69cc41d65f8c26dbb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a43ec6_7764327d813f49d7afad388135b1e94f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_941cb09722124005a9a745a8750c1b6b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5a1791_7169cea3747e47039ae2ac2be18b46c1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/599026_afb67a5e1bb34605898fff7576491bff.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d959ab4ea29e44358bc3c9c5325339e3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1e32c2_2c5135995ccc459ba2d480ac543f69ec.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_6cd13bc5671c41d9bfb1df8e0549c6cc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bb13a2_5649f19231f9473eb81664b2659e737d.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6821 5172 bytes
SHA-256: 88e00dfa3e19f3c520c5e8d792d79c193fb5b6b5db4c2089ded0104d56ff346c
font_01_sfnt_off0000799a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799A 11608 bytes
SHA-256: c574b2b68bbed2ae049986e9e2ac314471d1b6334a6e8eae825a46471fb6f352
font_02_sfnt_off00009fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FA2 16076 bytes
SHA-256: 12198ed304d8e74df64bcaa8a4aae6da6436d73ceeb6d758e01031f89a18fcfe

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