Malicious PDF — malware analysis report

Static analysis result for SHA-256 7addb6d152d799cd…

MALICIOUS

PDF

40.5 KB Created: 2020-09-11 17:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ed7d4c356686246a79882a00e4fb66f SHA-1: 719da31c640bd1dea57c832b55f9092d636fe43d SHA-256: 7addb6d152d799cdf60659209164f3e07132d49f8eb602247820c421ebccb114
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links designed to redirect users to malicious sites, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The primary lure appears to be a fake free download, evidenced by the URL keyword 'analysis+toolpak+mac++free'. The ML classifier strongly suggests malicious intent, and the structure points towards a phishing or scam campaign.

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.club/wix?keyword=analysis+toolpak+mac++free In PDF document text
    • http://wadenej.zsuzsitoth.com/uploads/1/3/0/7/130775734/6892add912227c.pdfIn PDF document text
    • http://gotujuxu.gyrobot.co.uk/uploads/1/3/1/6/131606289/nufexoliduvot-ziwutagovid.pdfIn PDF document text
    • http://files.crystal-violet.com/uploads/1/3/1/8/131871484/4588107.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/1/0432/9160/7190/files/48025182001.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/086daf_35ef415f5fd04980a8d7e53464d94c23.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_59faa54f4929421b8ef1af17bd4c860f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2b25e8_f322b2f1fc9d4f528eb6a883b336a2c5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6240f8_c9650ac36dee40ea86040bdc6b0aaad7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2c8d66_5242c0ddcc7649c8bf5a2aeb0da31700.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/95b9ea_e208be2a302e45cfa8e859e95b71193e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9cc572_5b32a66e72d849b1983198e2d0f2b6e9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/374ce0_23d1e2825f1b4d0a9bf8adebf8bb15b9.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 1

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_off00005fce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCE 5316 bytes
SHA-256: c174eaa19ea576bdc45937982c637351b2c699c765263aeaf15c94dfc6a9777d
font_01_sfnt_off000071e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E1 10716 bytes
SHA-256: e26f608895043ff4e8e881c31367ca36816ad2c03353d86b01647f0f1c3a0971

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