Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a6867276bf69064…

MALICIOUS

PDF

42.7 KB Created: 2020-07-26 01:54:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 33d10d39f944afa02cb53ae7613c3cfb SHA-1: d4e754d7fbc7c7cd4338feaacf53759482139f5e SHA-256: 7a6867276bf69064e0b26b10c58c5044b1a986f733b5fdcafa88e08b1a2c5d37
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, appears to reference an 'Ofsted report' to entice clicks. The presence of many external PDF links suggests an attempt to create a link farm or distribute further malicious content, potentially via a phishing lure.

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=four+oaks+primary+school+ofsted+report In PDF document text
    • http://files.bhstomp.com/uploads/1/3/1/6/131607544/b666a.pdfIn PDF document text
    • http://files.londonderryhomeowners.com/uploads/1/3/2/8/132814241/relaxixeraxefok-ramisofesotejo-ganikegugut.pdfIn PDF document text
    • http://files.volunteerconnectnow.org/uploads/1/3/1/3/131379578/298450.pdfIn PDF document text
    • http://files.everywhere2everywhere.org/uploads/1/3/1/6/131636834/melik.pdfIn PDF document text
    • http://files.derrenbackergroupbenefits.com/uploads/1/3/1/6/131607544/rakigifizonaro.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/1/0432/9229/5332/files/jatiwozoriloz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3152/7575/files/72404416617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/96845955676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3921/files/38917682634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9777/6543/files/30057179777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3246/8890/files/fufisunoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/tibinuxolufanij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/musetoluzolezewud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tanedikefiresemur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/duwaxufezemurogagur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8075/3058/files/1728277294.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_off000067ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AD 5292 bytes
SHA-256: 96c6cbebece9c21c286f40f6007e16c9dca2c7be14169dbd59b4fbc569f13488
font_01_sfnt_off000079c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C2 10592 bytes
SHA-256: 6341fe1bf7a3509d17eab91980687e23b31140d21557c0c78f21adace707c8cc

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