Malicious PDF — malware analysis report

Static analysis result for SHA-256 72d3d6a7b5a8b692…

MALICIOUS

PDF

35.1 KB Created: 2020-08-18 16:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d6f8fc55a26268ec6d209bdb8c320263 SHA-1: 099c4e30c71216c671638da280240727563d1767 SHA-256: 72d3d6a7b5a8b6929583d79c565c2a51efb1e377ff1f0ae215172220f39bed5b
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded link structure suggest a lure to download content, likely leading to a phishing or malware download site. The ML classifier strongly supports the malicious verdict.

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=miss+you+song+enrique+iglesias In PDF document text
    • http://files.islamthebasics.com/uploads/1/3/2/8/132815343/07ebcf.pdfIn PDF document text
    • http://sonez.mckerrinkellydirector.com/uploads/1/3/1/4/131407057/1409638.pdfIn PDF document text
    • http://files.explorestanton.com/uploads/1/3/1/4/131453216/6741733.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/1/0436/2466/1154/files/sample_words_attendance_tracking_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5598/files/23003787246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/gosisiroxometakexebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/housing_policy_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3488/5796/files/85222522164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0108/4064/files/mojujojinode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7029/9038/files/73938427585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/xafosox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/gabowutisoriziwigaxexup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19441108854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3273/9989/files/fabeveguputemapapefepuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5545/6164/files/xozekiwitikirikodagarilam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/57949303355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/didul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vijufetibumumupaxewaromuw.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_off00004dfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DFE 5084 bytes
SHA-256: 387bc79c5d3666a882f3fb1dfa238d09f79e08877bae3447dcb28ae32ae554a6
font_01_sfnt_off00005f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5A 9400 bytes
SHA-256: 12ae4918a611c9dd75bd0da349140fa06276a83b0d191d5afca331bb97ceeb1f

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