Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ac6e02c8b91a3e…

MALICIOUS

PDF

41.6 KB Created: 2020-08-19 18:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45e2de92d13516a8eefd1e3ebaed1e33 SHA-1: 0a4c675d791d954ebaf4b19e8fa90da74666e916 SHA-256: 80ac6e02c8b91a3e767e46db1d1d6999ad093c8173664313ce78397f4e2a39f3
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document employs a social engineering lure, presenting itself as an "Android studio update app version" to trick users into clicking a malicious link. The embedded link, https://ttraff.com/pify?keyword=android+studio+update+app+version, is identified as a malicious redirector. The document also contains a large number of links to other PDFs, suggesting it is part of a link farm designed to improve SEO for malicious content. No scripts were extracted, but the presence of malicious redirectors and the SEO link farm strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=android+studio+update+app+version In PDF document text
    • http://files.fancydollfacepersians.com/uploads/1/3/1/6/131606133/8088000.pdfIn PDF document text
    • http://files.petersparents.com/uploads/1/3/1/8/131856331/9983982.pdfIn PDF document text
    • http://nifin.discovernectar.com/uploads/1/3/1/4/131437454/5e30c0282.pdfIn PDF document text
    • http://files.lilybellekeepsakes.com/uploads/1/3/1/4/131409794/cda01efde39e3a.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/1/0432/5788/8936/files/harmy_s_despecialized_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7149/5574/files/afro_american_fragment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4915/5740/files/types_of_multilingualism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5811/0363/files/lewefavopapapawej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/zizowugebuwakiporu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3910/3912/files/13896064764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3978/4103/files/22387120537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2565/2136/files/84520899221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buxigol.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 3

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_off00006251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6251 4972 bytes
SHA-256: 3d2f73e2a95d19897f627e7118037bd59cbf2fc2b8a1a8342366318c33b4e6cd
font_01_sfnt_off00007343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7343 11844 bytes
SHA-256: 0971cdfb5a96d10b867b2eb7bbecd52a25a43db9791ae3bf08b665d7f512b8b5

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