Malicious PDF — malware analysis report

Static analysis result for SHA-256 5adeba3e5da36b07…

MALICIOUS

PDF

44.6 KB Created: 2020-08-12 10:55:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a9137b2b6ea95e65a1773cbab2be0666 SHA-1: 47311d98a6d9c703d3943ed8cd9da5a6171efdab SHA-256: 5adeba3e5da36b07fa72418f48f96f41f31641fd70fb7a9ee0d5257eab5bd606
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL associated with SEO spam and phishing lures. The document body, though heavily obfuscated, contains text related to a 'weight gain diet plan for female pdf' and the malicious URL itself, indicating a phishing attempt. 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.com/pify?keyword=weight+gain+diet+plan+for+female+pdf In PDF document text
    • http://files.kaiderlaw.com/uploads/1/3/1/4/131409385/mexigofefagaxi-zugaginava-mefilo-zobodirotulala.pdfIn PDF document text
    • http://tutuna.makerspaceforeducation.com/uploads/1/3/1/4/131453133/02da61be4f3d2.pdfIn PDF document text
    • http://files.galtfarmsgenetics.com/uploads/1/3/0/8/130813860/3578955.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/1/0428/5900/4070/files/vujubedodokemunogiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/8229/5969/files/cantar_a_beleza_da_vida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3873/files/jenanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8144/9126/files/zisaseluwuxugamazogivira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/48643379492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3399/2085/files/aphasia_therapy_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/adobe_acrobat_ocr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8444/5864/files/4969973220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6448/3240/files/86677551521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0094/6073/files/51731011183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/bukev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9269/files/50067537483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruwofejimu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F97 5288 bytes
SHA-256: f7890e0de032cfa4419be76a22e00ae23850a355b0c998bdf1901b585a432fbb
font_01_sfnt_off00008174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8174 10524 bytes
SHA-256: 7095b1322f543392a557ad7b53e7c450c5fc81dadeded779370671116096055a

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