Malicious PDF — malware analysis report

Static analysis result for SHA-256 929c1e910b9c4db6…

MALICIOUS

PDF

39.2 KB Created: 2020-08-12 04:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 248946d2625420077f05813bbbd60d80 SHA-1: 397d273689eced6dd0f075e8b64839e632a720e1 SHA-256: 929c1e910b9c4db6a5316f140f2aa39a807c8cd6096495356967a9ce40e29f0d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a significant number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. One critical heuristic identified a link to a known malicious redirector, and another flagged a large farm of external PDF links. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the extensive link farm and the redirector URL suggest a malicious intent to lure users to potentially harmful sites.

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.cc/pify?keyword=programme+nutrition+sportive+pdf In PDF document text
    • http://zebupip.thegreeneyedgirlspdx.com/uploads/1/3/1/1/131164250/676091.pdfIn PDF document text
    • http://files.nicolecosh.com/uploads/1/3/1/4/131452733/9c0bded42be6.pdfIn PDF document text
    • http://files.flooringnetwork.com/uploads/1/3/2/6/132681409/numedegamidu-fukusox-wovofukemipe.pdfIn PDF document text
    • http://files.marriedmarks.com/uploads/1/3/2/8/132816158/wawezanuz-titun-resuta-ponupax.pdfIn PDF document text
    • http://jadapas.altonmillpondhockey.ca/uploads/1/3/2/6/132682883/vudafuj.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/1/0431/8678/2369/files/jonokibuvimaxobonawiloxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/compress_file_size_online_to_2mb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/96694619569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8238/9406/files/anesthesia_pulling_teeth_bass_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7614/8638/files/gmod_fnaf_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2669/4822/files/71191151651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/pazuzetanapinexubudof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5737/9488/files/8104299035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6026/4096/files/comment_regrouper_2_fichiers_en_un_seul.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_off00005c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4F 5388 bytes
SHA-256: 016039bad3e40f57790b524ee0e074ed02108d31d2632a4a6cfc8573f22da2bb
font_01_sfnt_off00006e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E99 9828 bytes
SHA-256: 7274e9a93446a768ff3e13054ab47d136cce08dc4b281b0a6731b19983e832b2

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