Malicious PDF — malware analysis report

Static analysis result for SHA-256 7efe17af1a254dd4…

MALICIOUS

PDF

46.5 KB Created: 2020-08-01 08:13:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c053d410846ce147b317b7948dc3222 SHA-1: 0aaccf39663bcd3ace1528c14f7e036c7e476b00 SHA-256: 7efe17af1a254dd492624349b23cc0a3b47020e2f9aaf23c766884e19969b866
202 Risk Score

Malware Insights

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

This PDF document contains a link farm and a redirector URL, suggesting a phishing or malware distribution attempt. The presence of a 'download button' lure and the ML classifier's high confidence score indicate malicious intent. The document likely aims to trick users into downloading a malicious file by masquerading as a driver download.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=marvell+avastar+wireless+ac+network+controller+driver In PDF document text
    • http://files.westlakejuniorwomensclub.com/uploads/1/3/1/3/131382092/a6f56f11d15363.pdfIn PDF document text
    • http://files.southerntackleworksfl.com/uploads/1/3/1/4/131482991/5042538.pdfIn PDF document text
    • http://files.yongintaekwondocollege.com/uploads/1/3/0/8/130814980/2644989.pdfIn PDF document text
    • http://files.mynewonline.store/uploads/1/3/1/4/131438418/6129985.pdfIn PDF document text
    • http://files.sar-ru.com/uploads/1/3/1/4/131437669/jodewuvituwup-rapezamudolunu.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/1/0431/1659/3312/files/ludebiwanonolaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/niwelajusidelusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7210/8197/files/wapowunufevepisifimonut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0067/4978/files/vugareduwibubifumatija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/mufuvafuraxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3483/files/26347522050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1518/4295/files/jeraxogasosukeresopox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8231/7975/files/wenefuxejuwurotidikigewup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/31079270118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/roluka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/export_bookmarks_chrome.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_off0000776a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x776A 5152 bytes
SHA-256: 1232f2200cb37c0cff30e3c52cb86e40b5af631d4b985c730837f188fed9f219
font_01_sfnt_off0000891f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x891F 10428 bytes
SHA-256: bdba9bb52d016dd643170995507687ab0f11ab172cb0887caa6f2b2c76bfd7eb

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