Malicious PDF — malware analysis report

Static analysis result for SHA-256 65425627cec9c3a8…

MALICIOUS

PDF

52.8 KB Created: 2020-08-02 21:21:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04bed587bf547df833ab4b055ad418a0 SHA-1: 64fe78d0f6c0f1005236da2df9b0accd96590015 SHA-256: 65425627cec9c3a83cedeb4aae4dc971a80edcea5b4d554dbe20dca27b4b687c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL. This indicates a phishing or scam attempt using a link farm to obscure the final malicious destination.

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=examples+of+poorly+written+instructions In PDF document text
    • http://files.greetersinternational.com/uploads/1/3/1/4/131482926/58c0a4be9192.pdfIn PDF document text
    • http://files.nimipuutimt.org/uploads/1/3/1/0/131071256/bitefuzofoxu_suruwubowag.pdfIn PDF document text
    • http://files.hopefulplace.com/uploads/1/3/0/7/130739227/4497243.pdfIn PDF document text
    • http://files.teenchallengeofnewmexico.com/uploads/1/3/1/3/131378942/7063551.pdfIn PDF document text
    • http://files.sweetstopcandy.com/uploads/1/3/2/7/132741029/wozuwat.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/1/0437/9164/6880/files/97914870513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3675/3570/files/97784100680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4203/7150/files/36050760645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/90766255210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8757/6740/files/72375498954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3826/8827/files/resesixodixozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/rawiguvawogevezikuwize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2591/4262/files/zediwidokodifekuzireni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5987/9841/files/veferepuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7344/4767/files/wesodunoxorepidagamimen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7029/9038/files/tipirefeluxogot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3888/3485/files/39492912197.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_off00008eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EED 5380 bytes
SHA-256: e384db0af19860a34f7325c6170829c24bf043baf5ddecac98cd1fce8d3382a6
font_01_sfnt_off0000a146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA146 10580 bytes
SHA-256: 358df9acf884801156fd112c6c1fef66dc019f94024e00744833af33f1345e37

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