Malicious PDF — malware analysis report

Static analysis result for SHA-256 df66a41ab212f456…

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 16:41:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9d70d869d4cf451d0d0495a5e049305 SHA-1: 2f49b197ecdd1d78b4f7b1cab1a9a253f676d498 SHA-256: df66a41ab212f45692cab86777a9addd246eece9732f128c7698a2527f9c322f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'Harry Potter spells list'. The presence of numerous links to Shopify-hosted PDFs suggests a link farm or SEO poisoning tactic to increase visibility.

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/wb?keyword=harry%20potter%20spells%20list%20a-z%20pdf In PDF document text
    • http://files.decaturcountyworks.com/uploads/1/3/2/6/132695454/nisizimi.pdfIn PDF document text
    • http://files.knottypinegifts.com/uploads/1/3/2/6/132681513/vuwotizusutoremabare.pdfIn PDF document text
    • http://files.tedxsandhillscc.org/uploads/1/3/0/7/130739664/komuj-vesoz-lezaxegaxoni.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/1/0431/1734/6965/files/gomesenabali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/59654297510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/19123694787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/zebefupirexuxojejinobiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5395/4710/files/welotokajupazov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0740/9308/files/zulufesudawobiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9354/1532/files/51761855290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3346/7808/files/dagij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1792/7837/files/87621596329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/10342239276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/jogijoxatubutozonoxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8485/8022/files/segredos_do_alcoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vakijuxek.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 4

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_off0000614a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614A 5180 bytes
SHA-256: 8dad990a90c6842b093f1b45b849116f1ae0fa086fe99a454f6cb58dee53421b
font_01_sfnt_off0000730e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730E 10364 bytes
SHA-256: ffecf95c7e9206d0b9d9af28949869101ac7e2d095f8138bef40d097c66fb644

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