Malicious PDF — malware analysis report

Static analysis result for SHA-256 2941f69babf2133c…

MALICIOUS

PDF

50.8 KB Created: 2020-08-04 08:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7f3c6ae5fcc03a7ff239b1af425503aa SHA-1: 5ef81d9cd94403c0a87e4427fff0af2b442c86b2 SHA-256: 2941f69babf2133c0b9037e451875bd6395e487c00442a56b303bf1a642945fd
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, many of which are hosted on Shopify, but one critical link points to a known malicious redirector. The document body text, though garbled, suggests a lure related to 'Chrome extension development tutorial pdf'. The heuristic firings indicate the PDF is a malicious redirector and part of a link farm, designed to trick users into installing something by pretending to be a tutorial. The primary malicious IOC is the redirector URL.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=chrome+extension+development+tutorial+pdf In PDF document text
    • http://files.navesinkpta.com/uploads/1/3/1/3/131383826/burilur.pdfIn PDF document text
    • http://files.deborahmauldinlicsw.com/uploads/1/3/0/8/130874647/4821116.pdfIn PDF document text
    • http://files.centerartsinnovation.com/uploads/1/3/0/7/130738870/goxerutaziwudapev.pdfIn PDF document text
    • http://files.nbu-vienna.com/uploads/1/3/1/4/131437982/18fcf671.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/1/0431/8553/7175/files/84122761219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5404/7138/files/39872892564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2096/6293/files/sorisumulabapatirurobege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0134/7226/files/gilikezobisojipenusonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/pewuzugutarodiwovemekak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6074/files/79627689186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9390/8892/files/6942245404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9151/5808/files/91016410073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/66725456859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/17970742109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86556218032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27247465441.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 4

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_off00008772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8772 5316 bytes
SHA-256: 09b6409deabdde3a71e723fabda689c40462fae3ee4a72b559fc3daa71df0fb9
font_01_sfnt_off0000995d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x995D 10752 bytes
SHA-256: ae6ae467cbef7c73679d18126e1ce4f2ce0c6d8ee4a65f80894a57b59e8b8efd

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