Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ac8f098de546b0e…

MALICIOUS

PDF

41.5 KB Created: 2020-08-20 03:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 009b9426c0de1d5691f58acf9d1d19ce SHA-1: d253c9a71bc4874a099fb047e8456c2097cf2e75 SHA-256: 7ac8f098de546b0eb874cfb50aa8ba64a0970b9f9d3b0d11814754fbf2fcbada
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'exponent worksheets for 7th grade' and a URL that appears to be part of a link farm designed to attract traffic. The presence of multiple Shopify-hosted PDF links suggests an attempt to distribute content through a seemingly legitimate platform, likely as a lure for phishing or malware delivery.

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=exponent+worksheets+for+7th+grade In PDF document text
    • http://files.beatrice77livestocksales.com/uploads/1/3/1/4/131407035/sudapiwalera-papufuwika-timuzag-xuwujez.pdfIn PDF document text
    • http://files.edwinmclachlan.com/uploads/1/3/0/7/130739525/3dfbca03b6ca3a.pdfIn PDF document text
    • http://files.nysdentalfoundation.org/uploads/1/3/1/1/131164027/88d37d8dc7.pdfIn PDF document text
    • http://files.draperyhardwarebypriscilla.com/uploads/1/3/0/9/130969742/5680261.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/1/0433/1077/6484/files/rukoxefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3098/4357/files/80952507094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3947/3314/files/xezudobeveru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0709/8529/files/54091756874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9988/9571/files/76200433155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2583/3882/files/arcgis_10._5_eitim_kitab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4661/6733/files/bhakti_ringtone_radha_krishna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8355/4206/files/tratamiento_de_rinitis_alergica_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1281/6034/files/ridumepisuzerujojoveseda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/65666705155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3687/4651/files/61406205304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/9927633825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/salamanders_40k_supplement.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 5

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_off000062ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EF 5532 bytes
SHA-256: 38942789259caf2cb7c0bef18778847696cf7df529409d88c997b7fcda035888
font_01_sfnt_off000075da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75DA 10460 bytes
SHA-256: 68ee62c77005de59d288a0db1f401dd05e8a882f132629a6025a4f72bd3c573b

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