Malicious PDF — malware analysis report

Static analysis result for SHA-256 1717386e3b2ba9ef…

MALICIOUS

PDF

52.1 KB Created: 2020-07-31 18:21:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6adcd85f87b439439305b2f4157af43d SHA-1: 6c49c2f82bc3955867063d8e7f08e8afe786830b SHA-256: 1717386e3b2ba9efe34870ac570f0068c438783039eaf8e4afadbf483a672686
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) and are designed to appear as part of an SEO link farm. This indicates a phishing or scam attempt, likely to drive traffic to malicious sites or distribute further malware. The ML classifier strongly supports the malicious nature of this PDF.

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=example+css+file In PDF document text
    • http://files.literacyshedblog.com/uploads/1/3/2/7/132740949/zobawonovozin.pdfIn PDF document text
    • http://files.anestesia-triveneto.org/uploads/1/3/1/6/131607374/4722937.pdfIn PDF document text
    • http://files.kugelcraft.com/uploads/1/3/0/7/130776499/suripipexawu.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/1/0433/0687/7080/files/tosinumemelijigejidab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/nalapazonivesizitufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1189/files/xusibegisanawana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4637/9426/files/90237784672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8597/8013/files/mobupaweb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/87450939330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4993/3208/files/50770877679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/zuzupufisutijewubufuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4049/files/60338888593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7949/7896/files/beberotigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/mejexarad.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_off0000851d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x851D 5092 bytes
SHA-256: 460627d5cb249937bcbb3bcae4ff78c0f6c4a894041e9fefa37561fc9ec98a34
font_01_sfnt_off00009668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9668 14316 bytes
SHA-256: 486ee7435526eae0fdaaae08dd7bbc1d91089b34af058f05edf754e4054809ae

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