Malicious PDF — malware analysis report

Static analysis result for SHA-256 04841e5e3efa5b36…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 21:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b8ae5b98452e1572a9c127f680ebfb56 SHA-1: dc99bf82a90c538306cba5a66c2540a6956c6f6c SHA-256: 04841e5e3efa5b36878a5ba5d32a349903c92fe5bd31a38f6aa8bec592a90480
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics as a malicious redirector. The presence of multiple PDF links and a redirector indicates a likely attempt to drive traffic to malicious sites, potentially for credential harvesting or malware distribution.

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=texas+jurisprudence+study+guide+pdf In PDF document text
    • http://navoba.matricespress.net/uploads/1/3/2/3/132302963/4343255.pdfIn PDF document text
    • http://files.baldwincountybossbabes.com/uploads/1/3/1/0/131070560/64adc4a41968d.pdfIn PDF document text
    • http://files.jillebailey.com/uploads/1/3/1/4/131437123/waxadejazasenojokis.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/1/0431/9998/7873/files/lezapidum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0436/9816/files/83644894317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9568/7328/files/mazugoboxeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/31873148531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jedajuzosefowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3800/6686/files/govidojenimimosuxagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/68534034926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5093/2123/files/lajapitorizinujik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6843/1265/files/todowazago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5943/0047/files/35531235403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/5513633607.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_off00006c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C3F 5484 bytes
SHA-256: 94e7bfce803eb35ed8d3288536268c7ff274e6819868f286393ccf2547ebd4ff
font_01_sfnt_off00007f0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0D 10532 bytes
SHA-256: 8cbc44969008ce07dbfc73dca84c382225d5f06d0c9a8ba06ecb98138bb5de0b

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