Malicious PDF — malware analysis report

Static analysis result for SHA-256 6351435924e6dd4c…

MALICIOUS

PDF

44.6 KB Created: 2020-07-28 15:57:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 772b60654db33d7b5af2f4c76ecb6ab8 SHA-1: 0fe373c8de0a73d1285c62c29bab1325586cc1be SHA-256: 6351435924e6dd4ce58bbbd7cd0ff0e50007a80740f122b8a27e41832b6e6a0a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains a link farm and a redirector URL, suggesting an attempt to drive traffic to malicious infrastructure. The document body, though heavily obfuscated, contains text related to a sports match, likely serving as a lure. The presence of multiple PDF links and a redirector indicates a phishing or malware distribution attempt.

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.cc/pify?keyword=burnley+vs+liverpool+1-+3 In PDF document text
    • http://files.mohammedsabrin.org/uploads/1/3/1/3/131379321/3280424.pdfIn PDF document text
    • http://files.sweetthingscoleshill.co.uk/uploads/1/3/0/8/130813777/sujexeremumunexodini.pdfIn PDF document text
    • http://files.osborneranch.com/uploads/1/3/0/9/130968960/rupetom.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/1/0434/7196/2265/files/raduwepevegituruvob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4356/1384/files/53845342356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/kexupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0052/9049/files/72171230065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4857/4884/files/vuvexamuvoladovekot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1021/2519/files/83665895881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/8453386169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/50558217757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7238/8249/files/85931071544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4171/0499/files/64984414380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7955/7539/files/vofatifapetagume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3774/4534/files/jovosedozigofelu.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 2

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_off00007160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7160 4864 bytes
SHA-256: 8da924ff50ae06ddd513af8bd4678e88ad86a6f5417fa50c0de1c3fb06020d80
font_01_sfnt_off0000820a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x820A 10420 bytes
SHA-256: f9049c923e188014a7b408009699e25d85295b6671513ccbf246e0c51772e221

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