Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae95f51902bb6de…

MALICIOUS

PDF

66.9 KB Created: 2020-08-09 23:56:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ce9d1ced8078dea190076faa40febbd SHA-1: ba177004bde67f739a47bae676db1f34a9c58c58 SHA-256: 5ae95f51902bb6de78b3b2526b6edd9e518369ee1a10fbd3346105c9718ce2be
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to a free-download phishing lure. The embedded URL 'https://ttraff.com/pify?keyword=zotero+pdf+annotation' is a known malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary purpose is to redirect the user to this malicious site.

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/pify?keyword=zotero+pdf+annotation In PDF document text
    • http://files.bridgethjackson.com/uploads/1/3/1/0/131070216/piturovomuvikavabit.pdfIn PDF document text
    • http://files.taxperks.net/uploads/1/3/1/3/131380440/290045.pdfIn PDF document text
    • http://files.edgertonbookfestival.org/uploads/1/3/1/1/131163559/1010284a28.pdfIn PDF document text
    • http://files.mclaughlinesq.com/uploads/1/3/1/4/131407051/fb19b278.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/1/0430/4856/6941/files/14050033866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1553/6793/files/rusobola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1284/0872/files/paul_richards_krdo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90685913575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3690/8439/files/35321528186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7015/9016/files/5434262219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1187/4716/files/93905671249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/85549203881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/55338094984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/national_guard_bureau_accelerated_ocs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3973/6487/files/don_t_tell_her_it_s_me.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_off0000b3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3DD 4780 bytes
SHA-256: 755b591bbe9f6d2b6d4d39d185d8479afc12c00e366d72ebc5e5a246ed7ccce0
font_01_sfnt_off0000c434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC434 10816 bytes
SHA-256: 37a91b57ceaec33e43ff1807df934ed0dc2ac6353266b9cfdce3ead86bcb8d60
font_02_sfnt_off0000e93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93B 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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