Malicious PDF — malware analysis report

Static analysis result for SHA-256 06bd76427472ac88…

MALICIOUS

PDF

82.9 KB Created: 2020-07-30 05:55:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 21271ee4369f683e3964998a43a1a148 SHA-1: 2fd198d15b1e74b461a0bdf83a4f5918f66bb405 SHA-256: 06bd76427472ac88c921525f6cf0e86dbc32c152739fb9d1547d2523d1ec619c
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically linking to a URL associated with SEO-based phishing lures. The document body, though heavily obfuscated, suggests a context related to diet information, likely a pretext for the malicious link. The ML classifier strongly supports the malicious verdict.

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=exocrine+pancreatic+insufficiency+diet+pdf In PDF document text
    • http://files.weisbeckerscholarshipfund.com/uploads/1/3/1/3/131398131/e58bcd3.pdfIn PDF document text
    • http://files.maricelagutierrez.com/uploads/1/3/1/6/131637016/wuzat.pdfIn PDF document text
    • http://files.ravenmiller.com/uploads/1/3/1/4/131437307/855104.pdfIn PDF document text
    • http://files.ddoughty.com/uploads/1/3/2/6/132682646/186963aa.pdfIn PDF document text
    • http://files.johanneimmis.com/uploads/1/3/0/9/130969837/nejadaviwab.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/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/1/0432/0677/0849/files/79959562879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/23377087850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/kutubikudusejez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4624/7332/files/zavevog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5308/0985/files/bogit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2591/4262/files/78129186677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/mukujevada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9273/0275/files/65759040064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6628/6490/files/metigulor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8104/7965/files/sewepupobipuvoluj.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_off0000eb56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB56 1724 bytes
SHA-256: 1af1fdb02f150e4b7fb9ab825036f356033ef8d1f6adfeb519aebbff9637efeb
font_01_sfnt_off0000f3e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E2 5128 bytes
SHA-256: 4fb64f66851edcda84861bb611377981d9b752e5171e178fcfe0a4ba6d6b23cd
font_02_sfnt_off00010560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10560 17532 bytes
SHA-256: e8f02cdd08fde425f9e53787be8358fbbe819898762b257efdef55ea57018b8e

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