Malicious PDF — malware analysis report

Static analysis result for SHA-256 5746faf28267dcae…

MALICIOUS

PDF

54.9 KB Created: 2020-08-06 12:41:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce82200fe054f8990724881c1f186a6f SHA-1: cac1d2acf84192b9b01fe14a5803488b7720e5de SHA-256: 5746faf28267dcae6f3c85e16396d79eef268716e1df8043d18f6d37658908f0
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, disguised as a business strategy model PDF. The ML classifier strongly indicated maliciousness, and the PDF structure suggests it's part of a link farm designed to lure users to malicious infrastructure. No scripts were extracted, but the embedded links are the primary threat vector.

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=business+strategy+model+pdf In PDF document text
    • http://files.srtatorres.com/uploads/1/3/0/8/130813696/445950.pdfIn PDF document text
    • http://xofewan.sanderlingproductions.net/uploads/1/3/0/8/130874038/d67d4408a5f1b1.pdfIn PDF document text
    • http://files.theofallonantlercompany.com/uploads/1/3/1/6/131606745/4568783.pdfIn PDF document text
    • http://files.rug-cutters.de/uploads/1/3/1/4/131438468/vopafoki.pdfIn PDF document text
    • http://files.fablabav.com/uploads/1/3/2/7/132712116/zipodo.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/1/0431/4162/8072/files/tosezavewenajoziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3994/7932/files/95109131770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8275/2935/files/73561567776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8266/8437/files/bedufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8008/9760/files/xuvuxufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/venosemanimerobadesowolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/paxotaxazojulilinitulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9200/1433/files/letewupodeluzejif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4211/0625/files/26360556339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96328102714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5128/4642/files/76528516659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/renorapepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5606/2876/files/44069552670.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_off000098df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98DF 5512 bytes
SHA-256: 8da1e2b909ec3cabb0f3fa92dcc0a8ecb4093842884d2b0234484ff4936bb4c8
font_01_sfnt_off0000ab99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB99 10280 bytes
SHA-256: a8a1b6056beff453214ae92bf4d9a82798837153a6aa3aef178a657849b42fa2

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