Malicious PDF — malware analysis report

Static analysis result for SHA-256 8747d44f0edf9aa8…

MALICIOUS

PDF

44.6 KB Created: 2020-08-28 02:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a2bff7eee475f9d1f7b4cc03fc3bf86 SHA-1: efae688230ca2d65845952a1acca0503ef621fb1 SHA-256: 8747d44f0edf9aa8e096bbe7e56935fa63fa5058831f273960b4bb69e27d6b56
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=la+stanza+del+vescovo+torrent'. The document body also contains this URL, suggesting a lure for users to download content or visit a malicious site. The presence of numerous external PDF links further indicates a link farm or phishing 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.ru/pify?keyword=la+stanza+del+vescovo+torrent In PDF document text
    • http://files.jjamtech.com/uploads/1/3/1/6/131636692/ketusikowe-xetodila-xavapilibu-kazadutuvofu.pdfIn PDF document text
    • http://files.zstitchdesigns.com/uploads/1/3/0/8/130874671/6e6575f3a9c0c34.pdfIn PDF document text
    • http://files.philipwattsinteriors.com/uploads/1/3/1/4/131437423/bifin-wudipasuti-mujur-kejabufis.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/1/0433/2394/9224/files/74746804921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5649/6794/files/jesofatejusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7299/4971/files/karcher_fc5_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4982/5942/files/tojaragorulukusix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/66064107319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5317/1356/files/bupovozefukunune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0432/1184/files/vanizipudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zugazad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/89211225448.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 3

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_off0000642c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642C 4984 bytes
SHA-256: 2c11e266be419649ec7cb53ccfc0e21bccbf31e497cba22bab47165508302743
font_01_sfnt_off00007532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7532 15416 bytes
SHA-256: 47317cf6c703a15f1e4da24961e6c99c9abef5971c418a93f665a44f050cd441

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