Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d7850b44e89fc5d…

MALICIOUS

PDF

32.5 KB Created: 2020-08-17 10:09:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52a1bc98197014e2543ef1379c1ae85f SHA-1: 76a2be6083f914ccea83e47d687edff7bfd4b0f8 SHA-256: 0d7850b44e89fc5dd3b5a9a073fbab864d9ace9027f0c0944b79a15433fca253
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic identifying a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=avatar+musik+teamobi'. This URL is presented as a 'free download' lure, indicating a phishing or malware distribution attempt. 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.com/pify?keyword=avatar+musik+teamobi In PDF document text
    • http://files.gradyhenlydecorators.com/uploads/1/3/1/8/131856065/44088230b8a63da.pdfIn PDF document text
    • http://bewazufux.win19.org/uploads/1/3/2/6/132681670/fadeziroj.pdfIn PDF document text
    • http://files.easternsloperanch.com/uploads/1/3/2/6/132681404/3588728.pdfIn PDF document text
    • http://files.drclaytonmberger.com/uploads/1/3/0/9/130968934/fe8666c94c55.pdfIn PDF document text
    • http://files.bloggingwithbray.com/uploads/1/3/2/6/132681492/puperoz.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/1/0432/7381/4182/files/english_speaking_tips_in_marathi_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/online_to_word_editable_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/81989956813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2663/7223/files/air_waybill_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7729/6543/files/telokelovosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/82991699521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/26403765938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/85713856937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9563/6633/files/52892279420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/fazifutug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/troy_bilt_storm_2410_manual.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_off00004386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4386 5052 bytes
SHA-256: 6ba7f1cc80d2424b708e4a9603f4edbb1e86089518b02ed0a8f580e5186c7034
font_01_sfnt_off000054a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54A0 10700 bytes
SHA-256: 1d0509f4e76b05550c144f4180716a8d3bc2f3a0e266d9d3920fb48352c75110

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