Malicious PDF — malware analysis report

Static analysis result for SHA-256 772501ef7e865b96…

MALICIOUS

PDF

59.5 KB Created: 2020-08-24 04:20:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5274d9ec2f131dec2711f9943f20ce4d SHA-1: d449da7d0962a8b48fd8ad19f8b5cb0d0e30e7d7 SHA-256: 772501ef7e865b967689fa5552205f79894785759000d472b061ab473ab02b61
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, identified as a redirector for potentially harmful content. The document body, though heavily obfuscated, contains text and URLs suggesting a phishing lure related to 'car insurance certificate'. The presence of numerous external PDF links, many pointing to Shopify, indicates a link farm designed to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=lv+car+insurance+certificate+pdf In PDF document text
    • http://files.ashleykdrew.com/uploads/1/3/1/4/131437515/xekatemab.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/1/0434/4807/4405/files/27555312482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7318/2625/files/anarchism_and_moral_philosophy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/bonawoxuzunaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/penuwaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3575/3639/files/naxuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9900/4827/files/bharat_map_in_gujarati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3475/4715/files/awk_programming_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/95520096254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1371/7662/files/21147208313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2871/files/83321503250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/80863359824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2596/4966/files/27218286112.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA02C 2828 bytes
SHA-256: 4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9
font_01_sfnt_off0000aa27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA27 5120 bytes
SHA-256: 94d93891ee74e804e587df7f0a8c02b9491a0616538f6ac91fa53b3281e636fd
font_02_sfnt_off0000bba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBA8 10452 bytes
SHA-256: cc3335bc9df406a87b946bda3bcccd9e15cbc30f395df3fa64401ffd8bc4d952

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