Malicious PDF — malware analysis report

Static analysis result for SHA-256 80663e853f17a090…

MALICIOUS

PDF

47.2 KB Created: 2020-08-02 20:41:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79a7fa33729109239678c1185979109a SHA-1: 6818345e9de6536bf3aca29a34be92fee84f5039 SHA-256: 80663e853f17a0905136f9a1148ed81dbd8ee0073879e2f5231453514077bf6a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The primary redirector URL is https://ttraff.ru/pify?keyword=iching+book+of+changes+pdf, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains references to the same redirector URL, suggesting a coordinated effort to distribute malicious links.

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=iching+book+of+changes+pdf In PDF document text
    • http://files.starfishswimmers.com/uploads/1/3/1/3/131379246/7a78f01839485.pdfIn PDF document text
    • http://files.henandchickdolls.com/uploads/1/3/1/0/131070711/66c1b9.pdfIn PDF document text
    • http://files.actresscaitlinjackson.com/uploads/1/3/0/7/130775432/koraxo.pdfIn PDF document text
    • http://files.adamsstringshack.com/uploads/1/3/0/7/130740563/7290730.pdfIn PDF document text
    • http://files.flattailpress.com/uploads/1/3/0/8/130874627/7348d7c52608ad2.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/1/0435/0436/9816/files/1839882047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0819/5738/files/29260121498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8073/6151/files/fubodofudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0487/9267/files/84859155285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/34273057241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0558/3266/files/52410661276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/71052884609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2838/8772/files/24169972529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/wolin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9146/7176/files/gamisuwewubigoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1528/1568/files/lindsay_lohan_nude_selfie.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_off00007a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A25 5432 bytes
SHA-256: a68426b98db76175f9dea48e2f920b7249bd8daa9e9e400a0cc061212db64e7c
font_01_sfnt_off00008ca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CA0 10324 bytes
SHA-256: bf7ba7d42e191e805cb7205244f34a6aae0fedf9be09947c9103cae3e3d18dd9

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