Malicious PDF — malware analysis report

Static analysis result for SHA-256 1323adf8b91765df…

MALICIOUS

PDF

43.2 KB Created: 2020-08-09 03:35:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30b04a485f514d8134ee479cf997b36a SHA-1: e2d635240f9c49c0aa4456d9e5e7d84f2b34c6f1 SHA-256: 1323adf8b91765df732bc723c1149fbaff9668e2153a509c4a62b41503917c01
194 Risk Score

Malware Insights

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

This PDF document acts as a link farm, directing users to a redirector URL that is known to host malicious content. The document body, though obfuscated, contains text related to "income tax amendments" and the malicious redirector URL, suggesting a phishing or scam attempt. The presence of numerous embedded links, many pointing to Shopify domains that host PDF files, indicates a coordinated effort to distribute malicious content.

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=income+tax+amendments+for+fy+2020+19+pdf In PDF document text
    • http://files.syandash.co.uk/uploads/1/3/0/8/130873876/baguf-gubiwapeb.pdfIn PDF document text
    • http://files.ibunson.com/uploads/1/3/2/6/132682293/8590363.pdfIn PDF document text
    • http://files.wadearave.com/uploads/1/3/1/0/131070374/faf268.pdfIn PDF document text
    • http://files.barbycahillfineart.com/uploads/1/3/1/8/131871605/nisimarij.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/1/0428/9835/8432/files/gejazopemovaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/ledumewadezasidulido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/bopolegosavidaduzupepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1288/1564/files/susalejaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5180/3033/files/jagovalifajalunolulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7026/7300/files/angiotensin_converting_enzyme_ace_inhibitors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8628/files/90720845607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5805/9674/files/basic_formulas_for_aptitude_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5172/9567/files/susozejamesosonuvoginin.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_off000060c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C8 5860 bytes
SHA-256: f1b2bba462a90ed43d4353495560b0d22ec70dffabba99d10eced36e02f1aa84
font_01_sfnt_off000074b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B2 13744 bytes
SHA-256: 64cf76e3e64a5033abe656a9e5e651dd8d295ed28236e9a3805ebbb5159d55a7

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