Malicious PDF — malware analysis report

Static analysis result for SHA-256 8106f0d43653d186…

MALICIOUS

PDF

42.2 KB Created: 2020-08-24 17:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c12b6ef7be56b05ac69921af9a3cbb6b SHA-1: ab27770caf83ef0b5f6093f2caa2006874a8c8e9 SHA-256: 8106f0d43653d186b62854e0f3d0a6ff8faefeef3d3dbe152f95474e5f41e7e2
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, specifically advertising a "Netflix mod apk for android". This suggests a phishing or malware distribution attempt, likely using the lure of a modified application to entice downloads. The ML classifier strongly indicated maliciousness, and the presence of redirector links reinforces this assessment.

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=netflix+mod+apk++for+android In PDF document text
    • http://tupez.diamondhomes.net/uploads/1/3/1/3/131384609/3380089.pdfIn PDF document text
    • http://files.acuyoganw.com/uploads/1/3/0/9/130969190/buxozuwazajemiro.pdfIn PDF document text
    • http://files.kaitlinrphotography.com/uploads/1/3/0/7/130775518/bc4063.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/1/0439/1564/1000/files/40935938931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/96718836358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5533/0981/files/personal_statement_for_scholarship_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/ravexaxotez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6375/files/jetivugavas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zikoraj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3888/3485/files/judefapujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5431/8239/files/ebook_metabolisme_karbohidrat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0806/3649/files/meranemila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7641/8720/files/guia_ada_2020_espaol_completo.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_off000061ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CE 5108 bytes
SHA-256: b2e3813677076d1bd7c5bd1580c4c217f21b269cd1f4930cd30cd1ac393c0835
font_01_sfnt_off00007327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7327 15492 bytes
SHA-256: d5a88a9797dc5b3770343c2417c4927c5ae559679b7c3bc939ddc68d7ac47af7

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