Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c6f6f23cf03be4b…

MALICIOUS

PDF

36.6 KB Created: 2020-08-01 21:22:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d882cdf50cfb5decfa8f2a2d5e00f3ec SHA-1: 79d13c4808a37096db606f48cb30816848db5876 SHA-256: 0c6f6f23cf03be4bcfb8e49c94e3cf307577f19dd0418d495bb124afa52f5a29
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to lead users to a link farm. The embedded URL 'https://ttraff.com/pify?keyword=baseball+sound+effects' is flagged as malicious and part of an SEO link farm strategy. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to lure users to malicious infrastructure, likely for phishing or scam purposes.

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=baseball+sound+effects In PDF document text
    • http://files.africaep.org/uploads/1/3/1/3/131383657/tubuzuv-bomanutik-zeziroguxowo.pdfIn PDF document text
    • http://files.bneideffer.net/uploads/1/3/2/6/132695582/845251.pdfIn PDF document text
    • http://files.rocoveryfitness.net/uploads/1/3/0/7/130739715/buzag.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/1/0429/6222/3263/files/10530879778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/mijikavupafokutigugituj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/81389970572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/public_finance_harvey_rosen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/64922462933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9544/0040/files/dokagozamatepitegiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2443/9704/files/30058883123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2478/5319/files/38666035238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/36513510022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/monusobunafak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7266/8319/files/sudaderoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/divisekofatad.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 6

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_off000045e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45E1 3852 bytes
SHA-256: 475c8217c765b0858d0dc5e374e610d36c511649c6f2bc289cbbc144e31805e5
font_01_sfnt_off00005236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5236 5108 bytes
SHA-256: 04754172a2ba89103c7e9295fb769caa25bf6420b98b112f63a0dccae2f59a13
font_02_sfnt_off000063a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A6 9856 bytes
SHA-256: fd7b7835b5f5b483e6c569cf74158a384b668b081ee9732c1d326e1128a39ef4

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