Malicious PDF — malware analysis report

Static analysis result for SHA-256 08d2b845f3a5dc13…

MALICIOUS

PDF

40.9 KB Created: 2020-08-14 18:17:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25409e1b56dfa3bd416a56b8518d9112 SHA-1: e2df6d96f9385bd3b3bff9ae69f168aca3d9c0bc SHA-256: 08d2b845f3a5dc139113c600cf1d894bb227c18de91743f93497b7e412149695
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector designed to lure users into downloading an application. The document body and heuristics indicate a link farm strategy, with numerous links pointing to Shopify domains, likely to improve search engine ranking for the malicious lure. The ML classifier strongly indicates maliciousness.

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=apollo+justice+ace+attorney+apk+espa%25C3%25B1ol In PDF document text
    • http://files.aarestoration.com/uploads/1/3/1/3/131380308/6310386.pdfIn PDF document text
    • http://files.lisassalonspa.com/uploads/1/3/0/8/130873804/8097881.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/1/0432/5274/4356/files/28242603230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0974/4789/files/muziresaxupiwopobejodumam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/5463268942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/wilerukarasiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/nupojiromeraligevepem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/41670184900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/63632177945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2432/6566/files/18675075110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/63494764450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9017/3333/files/76650117831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2245/files/merofixo.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 7

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_off00005ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED8 5372 bytes
SHA-256: a7b5aff3e2f66bac293fa552d8dfb2f8fa91354641179e071f5a83cfe56f8458
font_01_sfnt_off000070f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70F1 10372 bytes
SHA-256: c9a801259cac24105558d334071357724aec54e3bd3230bfd6a4377bb717f195

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