Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ac8e454bc7e34a7…

MALICIOUS

PDF

43.7 KB Created: 2020-08-26 11:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e548c3325b6e75498c57f7cd60de17d7 SHA-1: 1a2187e099fb6a7ecfa85bb86f70e308a8a4ab14 SHA-256: 0ac8e454bc7e34a7ae63fa4a7c55aea0e5d3c8aef469a39f0ee3291809942d35
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though partially garbled, includes the redirector URL and several other URLs pointing to PDF files hosted on Shopify, suggesting an attempt to create a link farm or distribute content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to 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.link/pify?keyword=vocabulaire+de+g%25C3%25A9om%25C3%25A9trie In PDF document text
    • http://tamujidi.sssgc.org/uploads/1/3/2/3/132302978/jumaxu.pdfIn PDF document text
    • http://files.yestocake.com/uploads/1/3/2/7/132712006/pupigaje.pdfIn PDF document text
    • http://pugode.sculptedroots.com/uploads/1/3/1/4/131407233/8f6037.pdfIn PDF document text
    • http://files.designyoursignregina.com/uploads/1/3/1/3/131383251/kumopalo.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/1/0430/1216/1685/files/bollywood_video_songs_hd_free_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0724/files/21912098205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4728/1062/files/asymptotes_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2878/7878/files/pandora_box_4_arcade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/bedeweru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/81072534301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/bozatovarutenuluse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7821/1991/files/evidence_based_medicine_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1221/1359/files/9301575214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/tabela_campeonato_brasileiro_serie_b_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9385/9231/files/how_to_read_manga_on_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5081/4888/files/bawemawuxipanisiwabotuter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2611/2663/files/cache_memory_notes.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_off00006797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6797 5328 bytes
SHA-256: db67d6dacd0b9a8c2dcaadcd6aefd1ffb03aad6656e51ea4d31e3ea8ce4bb9c3
font_01_sfnt_off00007949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7949 11992 bytes
SHA-256: 45c21dc799233fdfa2a641de5b8717c9b1fca6bc78264d87b1f2e61c5760a1ea

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