Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cef94e03a3897f0…

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 15:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de7d3a5c221ec4a511db20cd92ec53d6 SHA-1: a771577cc60689cc935dee1e80b288ace44351f0 SHA-256: 7cef94e03a3897f0ef6239dd6a05e2645ef6fea044f535498ba463e856a0b4cf
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, including one to a known malicious redirector at 'https://ttraff.com/pify?keyword=sindrome+de+asperger+pdf'. The document body, though heavily obfuscated, appears to contain references to this URL and other Shopify-hosted PDFs, suggesting a link farm or phishing lure. The ML classifier strongly indicated maliciousness, supporting the conclusion that this document is designed to redirect users to harmful content.

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=sindrome+de+asperger+pdf In PDF document text
    • http://files.artistscorner.gallery/uploads/1/3/0/9/130969206/2318.pdfIn PDF document text
    • http://files.librarianlevenson.com/uploads/1/3/0/8/130814515/1475956.pdfIn PDF document text
    • http://files.equipmentfundingnw.com/uploads/1/3/0/8/130873718/buladujemazepu.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/1/0431/8186/7176/files/19236275842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7923/6760/files/dabapanuzaker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/mikuwozivanegegexalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/89655475529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/tunoxoluramosexavar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7266/8319/files/fosobiveviwanapalijanut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/dimeguxad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/samilunudivero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/cfrp_material_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5743/1196/files/lakujuwitukador.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3698/2952/files/32358932171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/24189167203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2920/6952/files/2900675935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/benederedor.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_off00006306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6306 5432 bytes
SHA-256: ef3fbb00cba1c3659d021bbea30a4f999e4d69a22bb133988a31708bde26e26d
font_01_sfnt_off00007565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7565 9708 bytes
SHA-256: 5ec80a6429844a8707b771e49c06f40d6bd2f557e6dcb11bc74e5e75d024e04b

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