Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a6d15b08dd49529…

MALICIOUS

PDF

40.5 KB Created: 2020-08-27 16:28:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a7ab17381cb34672081b4ecf3c0deab6 SHA-1: bd8bc961f2f6b0f09a372406ae73f3d7fca509a3 SHA-256: 5a6d15b08dd49529b224ddf65c6d81caec79d6a86c8d6d2699d6f44ae3be49d3
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, suggesting a phishing or scam attempt disguised as a driver download. The embedded document body text, though heavily obfuscated, contains the malicious URL and references to legitimate-sounding drivers, reinforcing the lure. The ML classifier strongly indicates maliciousness.

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.club/pify?keyword=realtek+pcie+fe+family+controller+wifi In PDF document text
    • http://files.shopragjunkie.com/uploads/1/3/1/3/131382470/3724159.pdfIn PDF document text
    • http://files.infralinx.com/uploads/1/3/1/8/131871625/jalisowosogezun_bonosuwutu_temizisokata.pdfIn PDF document text
    • http://fobizovor.oakdellfarm.com/uploads/1/3/1/4/131407406/101801.pdfIn PDF document text
    • http://lizalowi.chiparoo.com/uploads/1/3/0/8/130814328/2083026.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/1/0431/8937/1040/files/50392210927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8396/4324/files/nabuvenovewetilotadoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1340/5850/files/bugunidomad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3321/4621/files/jesojumuwozufajusunus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xorufolikuvuzinekotawoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/8015679380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6691/0872/files/budesonide_davis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2511/2988/files/ataullah_iskenderi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5158/8507/files/pavojinule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/79364284599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6544/9371/files/16466118153.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 6

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_off00005fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD9 5248 bytes
SHA-256: 5f3875fbe2c1e9fd23c4a5d563c7fb2f0f5081469e6c432e984418bc728f773c
font_01_sfnt_off000071ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BA 10252 bytes
SHA-256: ba2e5f3d53796a55503799bf385da44afd5a0d36799cd920b8147769c8150e3d

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