Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b86719430a2c6e1…

MALICIOUS

PDF

41.4 KB Created: 2020-08-15 02:19:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 820e881dbeb0cba7b896ce2ebda0d6e0 SHA-1: a41dc6e8bb162d6b69cad48c46e46451910ded81 SHA-256: 9b86719430a2c6e1e9d4a1d3c821fe56b67b34a0e5ca29fdf6ae3f085d14f6e1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, includes the target URL and appears to be a lure for a safety report. The presence of numerous external links, many hosted on Shopify, suggests a link farm or content distribution network used to host malicious documents. No scripts were extracted, and the primary malicious activity observed is the redirection to a suspicious URL.

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.ru/pify?keyword=hinkley+point+c+pre+construction+safety+report In PDF document text
    • http://files.max-russell.com/uploads/1/3/1/6/131637240/romixixixufever-gizukuwatim-lixisinokaku.pdfIn PDF document text
    • http://files.missannasswimschool.com/uploads/1/3/2/6/132682685/9e0352578749cc3.pdfIn PDF document text
    • http://zetol.sacramentomarriagecounseling.com/uploads/1/3/2/7/132712062/c96ba063576510.pdfIn PDF document text
    • http://lepugomu.atticsalt.org/uploads/1/3/1/4/131453723/e53b60.pdfIn PDF document text
    • http://files.gienekeyeshomes.com/uploads/1/3/1/3/131398423/84066af0cd.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/1/0431/9825/1165/files/badosodixipoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/44657920367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6748/7894/files/an_inspector_calls_revision_booklet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5591/2862/files/hwang_jin_yi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3237/9545/files/92025030748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8791/files/lonofulovisuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5649/6791/files/zosafozemojima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3277/1750/files/lavepebapolexurewojaxuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3156/7256/files/wufanetigukovineve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/jimoxoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8371/0108/files/9526356370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9241/4369/files/free_aol_games.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 2

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_off000064eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EB 5136 bytes
SHA-256: c2f78cf0b5d5868a6a3558851806261b5ecf0a2b7efc596c24a195db18914baa
font_01_sfnt_off00007679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7679 9908 bytes
SHA-256: bd767f898bf957f0d5a2b8da84c8a44d8a6b4a3e1e3a13024428b3b8c5a8f532

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