Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a7acb41b0b078a5…

MALICIOUS

PDF

57.8 KB Created: 2020-07-27 03:26:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62bbfe60428a0acab9dd070369174d00 SHA-1: 60ef7468f562828cde88d1c1e5e7e8969d3e22ae SHA-256: 0a7acb41b0b078a5d55526e2d00adab323a4fe1e787bb00b97f4dff1e27e8385
194 Risk Score

Malware Insights

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

This PDF file contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a link farm designed for SEO manipulation. The embedded content suggests a lure for free downloads, which redirects to the malicious URL https://ttraff.ru/pify?keyword=narnia+lullaby+duduk+sheet+music. The ML classifier also strongly flagged this PDF as malicious.

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=narnia+lullaby+duduk+sheet+music In PDF document text
    • http://files.hopecounselingpetaluma.com/uploads/1/3/2/7/132712080/6622823.pdfIn PDF document text
    • http://files.madebyloulou.net/uploads/1/3/1/8/131871891/59bfb6ba928ffb6.pdfIn PDF document text
    • http://files.slwellness.info/uploads/1/3/2/7/132712676/182ae7fa2e1.pdfIn PDF document text
    • http://files.gilliantorckler.com/uploads/1/3/0/8/130874629/gomenevidi-kinepowa-xasokipa-xupuzateseroji.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/1/0430/0200/3609/files/xiwulotadapibosabex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/43967034114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/zaluwonipajuwaninadixewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6700/6364/files/16211241447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1179/1257/files/tatemuvegoweniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6045/3785/files/38488594540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/19286137044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2732/files/63998493097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/kaneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7502/7619/files/38784367505.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00008aae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAE 5224 bytes
SHA-256: 097e4199bb2fcf2ad31796bb4a253bb4c848d76094c85fa33a19421c7dde7e64
font_01_sfnt_off00009c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C45 10500 bytes
SHA-256: 8b6f097d02a8a09d7377859e3f374008fa0ad67b27dbe204eb450b5ae0cc6970
font_02_sfnt_off0000bff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFF0 17728 bytes
SHA-256: 17785c482e84d23210224fe25dc73bc984a6c0d801edf4148b9da081fd370e0a

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