Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb6c4de9820ec0a5…

MALICIOUS

PDF

39.0 KB Created: 2020-08-24 09:33:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6efe0a60fd181d342481f706851ecc0d SHA-1: 291af880db469b7b596e50ebc307e02b92e82b7a SHA-256: cb6c4de9820ec0a5a9788bc13b8a8f907becfc175c6ed347e08d7c1772aa10d0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, many pointing to a link farm hosted on cdn.shopify.com, which is a strong indicator of SEO poisoning or link farming for malicious redirection. One critical heuristic identified a direct link to a known malicious redirector: https://ttraff.cc/pify?keyword=blank+basketball+court+template+free. The document body, though partially corrupted, contains text related to 'blank basketball court template free' and the malicious URL, suggesting a lure to entice users to click the link. The presence of numerous PDF links and a malicious redirector indicates a likely 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=blank+basketball+court+template+free In PDF document text
    • http://famokugep.ilmbiz.com/uploads/1/3/2/7/132740748/damemuf.pdfIn PDF document text
    • http://files.nomadesgourmandes.com/uploads/1/3/1/4/131454389/8e59a.pdfIn PDF document text
    • http://sodupig.bayareabreastfeedingsupport.com/uploads/1/3/0/8/130814411/1f4af5a2567d9.pdfIn PDF document text
    • http://puwabuju.cruzah.com/uploads/1/3/0/7/130775565/4dbe99db2f54c9d.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/1/0431/5509/5712/files/gakexivilosuromazunum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5763/5743/files/uk_payroll_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/file_horse_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0698/3333/files/dagoxuromijino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/daserugevosekizoguj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5832/1821/files/53713243206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1562/files/ruwaxiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8397/files/lirogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1816/5146/files/49936290955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7750/9020/files/29378067862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0069/1862/files/57530538617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8833338052.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53AE 5416 bytes
SHA-256: 2b6b983f63d4193be8dfa856d6f2f32b6f691485551565de6ecf58af4477c4c4
font_01_sfnt_off00006601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6601 13044 bytes
SHA-256: 0b85b9da96c205ce46718bc7da2c4873823e54c80fa65881fb13962e21483aac

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