Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c79591d2883f17…

MALICIOUS

PDF

47.4 KB Created: 2020-08-25 03:09:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5432c39e875cc83a5ebc514b5e50ff4 SHA-1: f4899f42a0b587da86f2818d78b51a92f9215a45 SHA-256: 70c79591d2883f170e483f874e69d7d2851eeec6f47313bbf410af989e8f4309
202 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, identified as a redirector for phishing or malware distribution. The document body, though heavily obfuscated, contains text suggesting a 'promissory note template' lure, aligning with the 'SE_INVOICE_LURE' heuristic. The presence of numerous external links, many pointing to Shopify, suggests an attempt to obscure the malicious destination and potentially engage in SEO manipulation for broader reach.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=promissory+note+template+in+word In PDF document text
    • http://files.joeyessmaracing.com/uploads/1/3/1/8/131857758/7490982.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/1/0431/5630/8123/files/7939880147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2289/8584/files/18361371738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6964/3675/files/calculus_book_larson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/zerarit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4648/3606/files/29458843354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35679391278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9505/5766/files/fajod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4172/2261/files/bookkeeping_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3627/files/mumavaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/navigator_dagger_ffxiv_arr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/93460284799.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_off00007acb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACB 5300 bytes
SHA-256: 3cb5d1d810ce08c6ef48d2b215feb7dfc99ba1a5f9ddbf09a378655cc7224fa8
font_01_sfnt_off00008cc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC0 10548 bytes
SHA-256: f00a14fc0af15c38a4d16d1e29e0273c20b57e5e919f31ec43ec7892c6973f81

Open this report in the interactive analyzer, or submit your own file for analysis.