Malicious PDF — malware analysis report

Static analysis result for SHA-256 7765a2c0b50b7d5b…

MALICIOUS

PDF

32.8 KB Created: 2020-08-23 18:15:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e698eb5e27ae7b568aae012cf6e3b496 SHA-1: c9a6c814aed10c4f7d61785901ddbdfd986fcf24 SHA-256: 7765a2c0b50b7d5b69d72bb164a43f79eaf0d9c4e3bc18f51c676fc7d07f83a4
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious URL, identified as a redirector for SEO link farms. The document body, though obfuscated, contains text that appears to be lyrics, likely serving as a lure. The ML classifier strongly indicated maliciousness, and the PDF structure suggests an attempt to disguise malicious links within a seemingly innocuous document.

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=i+have+no+answers+lyrics In PDF document text
    • http://jaxose.heart-tokushima.com/uploads/1/3/0/7/130738629/6479441.pdfIn PDF document text
    • http://files.fiddleonthefarm.com/uploads/1/3/1/4/131408100/5296344.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/1/0433/7834/4097/files/lawapejegag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4974/files/poletalaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0058/5632/files/bebuwixel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6886/6212/files/13304492860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0433/8074/files/80409435433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/adsense_arbitrage_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5278/6074/files/types_of_pesticides_used_in_agriculture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1058/0899/files/el_tratado_de_bucareli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/periodontal_disease_and_smoking_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lujodegiduwidixerilaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2011/3304/files/canon_pixma_ts9120_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 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_off000044fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44FB 5076 bytes
SHA-256: f9da5e37b7006a3e1c8165751c4fabea5ea15c64bc76fd46672614389db1a9a0
font_01_sfnt_off0000564a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x564A 9560 bytes
SHA-256: 18f7219557420577e9a99ee92aaf90b60898e960682394d5fb6926faa2dd06df

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