Malicious PDF — malware analysis report

Static analysis result for SHA-256 82432192a05e45fd…

MALICIOUS

PDF

127.4 KB Created: 2020-09-07 20:16:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2c200580b4e34355efb3a800b42af567 SHA-1: 6a7fd881910ba3f429fdda05b4523b13724c899e SHA-256: 82432192a05e45fd7ae6ffb0184a4f107a9b1b2c23f1e1c2075ab15656654e3b
194 Risk Score

Malware Insights

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

This PDF file contains a link that redirects to a known malicious infrastructure, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though heavily obfuscated, contains the URL which is presented as "paraganglioma diagnosis guidelines", suggesting a phishing or scam lure. The presence of numerous external PDF links also indicates a link farm, likely for SEO manipulation to increase the visibility of the malicious redirector.

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/wix?keyword=paraganglioma+diagnosis+guidelines In 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/1/0429/1392/3228/files/jefipusinoxipiritip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1779/6770/files/ausformulierten_lebenslauf_mit_bewerbungsfoto_in_textform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2632/5402/files/biriwusotisokif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/nuxotelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3802/1531/files/59097348753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2873/3352/files/tabamedipavosuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9787/3831/files/lonodu.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/824332_4831cc45315f42f498cdb6c8f06baa00.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0c8cc8_c4a9a297dd84457baaff04c166224ffa.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3801ff_7f7ba94ea815407bb37197635972506c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/99965f_9a154e679d2a46078df8a17fd3119f2a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0a4efbfdb90b458abc7854d09df9785c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/041b56_bbcabc18f3c943e189894c1efffcdaa3.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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_off00019968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19968 5144 bytes
SHA-256: d2375920498d85c19be7e5baef706cec70bca664724862e1f49f68629366a309
font_01_sfnt_off0001aacf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AACF 14968 bytes
SHA-256: 87834923300cad19e6e36ef15f353b4ade8a7b5dfc43933c1c1f980eb53e8c9b
font_02_sfnt_off0001da24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DA24 16272 bytes
SHA-256: a7b1e01542dab829d2ba5dd7846da79335ded9f65a948c274aeb683100f5fd08

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