Malicious PDF — malware analysis report

Static analysis result for SHA-256 07f2accca15b7911…

MALICIOUS

PDF

51.9 KB Created: 2020-08-21 17:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fce14fa811ae4bc4f8f01d722eb7a358 SHA-1: d429ef5ecdf927dc812d88dec2e90ba9cbf4fe76 SHA-256: 07f2accca15b79114dde4be9f561187231c84fe3b1e6cb7334631d7060d8efa4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing attempt. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.com/pify?keyword=cpm+ebooks+integrated+2+answers as malicious. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same redirector URL and links to various PDF files, likely as part of a SEO-based lure for free downloads.

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=cpm+ebooks+integrated+2+answers In PDF document text
    • http://lomikiz.joshuahousenek.com/uploads/1/3/1/0/131071181/a734641.pdfIn PDF document text
    • http://files.panduhm0n1um.com/uploads/1/3/2/6/132696122/jinupira.pdfIn PDF document text
    • http://files.salemll.info/uploads/1/3/1/3/131379321/jawovolasaxibixuka.pdfIn PDF document text
    • http://files.littlesilverems.com/uploads/1/3/2/6/132682989/guguta.pdfIn PDF document text
    • http://pidosak.logansyndrome.com/uploads/1/3/1/4/131408738/mowojekaxotag_fesawofi.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/1/0434/6665/3858/files/tinkers_construct_durability.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3641/7953/files/hunter_programable_thermostat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5696/2467/files/lulukolidobidolip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1964/8680/files/compare_numbers_worksheets_1st_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0886/0065/files/jazemot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2331/7662/files/xoveragitipakemavenez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/free_child_consent_form_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2549/7250/files/waleravesepegipepolaloro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/towaruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7063/3624/files/91538305890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/18759344649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8911/6840/files/20728318463.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_off00008345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8345 5580 bytes
SHA-256: ccc7ddedd748936430a93d19c964bc665723f1ab7ca3c811f66808d81728c110
font_01_sfnt_off00009633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9633 14300 bytes
SHA-256: 60e5183e41bbe4e28bc8ba9eead3bf659fdf49ce3b6325596770cb8c3138ce29

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