Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c25d950a60e44e2…

MALICIOUS

PDF

33.6 KB Created: 2020-08-20 19:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2b5a9332bacad6efae7a8088d414f4c SHA-1: 4c8c77046e8bfddc1a42e0fb133b7896115a15ce SHA-256: 5c25d950a60e44e2109fe1f37ef546b38ac65b25a7322fc938ccea5bb7ea9ae4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a 'police annual report' lure, and the presence of many Shopify links indicates an attempt to create a link farm for SEO manipulation. The ML classifier strongly indicates maliciousness.

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=downers+grove+police+annual+report In PDF document text
    • http://files.taxidermytrainingunlimited.com/uploads/1/3/1/4/131453463/fesog.pdfIn PDF document text
    • http://files.thegeorgiaruthhouse.com/uploads/1/3/1/8/131871501/0d6ca592f82e6ea.pdfIn PDF document text
    • http://files.theamericanbrabantassociation.net/uploads/1/3/1/8/131857476/4053415.pdfIn PDF document text
    • http://rexug.annefriend.com/uploads/1/3/2/6/132682974/6416446.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/1/0428/0634/5895/files/assetto_corsa_gt3_cars.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4074/1275/files/bavire_guide_du_routard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/17969728257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1072/files/5155827386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/komugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1562/4088/files/inference_worksheet_8th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6284/7640/files/57486629151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2548/1379/files/advanced_development_economics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/cengage_chemistry_class_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/57442784856.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 8

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_off00004665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4665 5252 bytes
SHA-256: f9af4e809ebed7c94f13a457791b595b5efe7e7a14bbd3664b26606ff1f267a1
font_01_sfnt_off00005872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5872 9760 bytes
SHA-256: 8edec5c70e691a08b8ec1545d49252af94a95f02e8143457b8ee8f63bf37f06c

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