Malicious PDF — malware analysis report

Static analysis result for SHA-256 df12366db1d9400a…

MALICIOUS

PDF

40.8 KB Created: 2020-08-04 02:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eeed28bffb2551c11aa6a0804ce71200 SHA-1: c01a66a91db89d0dfe7a87b47f21c9e5238dcf86 SHA-256: df12366db1d9400ae89894f58414279c7ed84547c610fd383e4e68343e6fb27a
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though obfuscated, contains the text 'History of the catholic bible pdf' and the malicious URL, suggesting a lure to download potentially harmful content. The ML classifier strongly supports the malicious verdict.

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=history+of+the+catholic+bible+pdf In PDF document text
    • http://files.notonemorealabama.org/uploads/1/3/1/6/131636965/39d2965f588307.pdfIn PDF document text
    • http://files.ccispropertytax.com/uploads/1/3/0/7/130739590/nedawe.pdfIn PDF document text
    • http://files.stmark-lutheran.org/uploads/1/3/1/8/131871569/825250.pdfIn PDF document text
    • http://files.adenta.bg/uploads/1/3/1/4/131454549/denubiba.pdfIn PDF document text
    • http://files.bodyshapingau.com.au/uploads/1/3/0/8/130815058/5eb03722.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/1/0433/3692/5342/files/tmux_resize_pane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/dukirur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/elementary_linear_algebra_larson_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/lufikimazaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9115/5361/files/rudazalixezukifeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0933/files/62487271561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7346/0641/files/86730012439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/kujegib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/53608497071.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_off000061b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B4 5444 bytes
SHA-256: ad80fbfeaaba83ffcd818f759d1963193dc0e6a87494c3dd0257651b598e3e05
font_01_sfnt_off00007430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7430 10156 bytes
SHA-256: 74415a42ab673286465f0a9591474b5c62c652d953196b2ac135ebe9031629fb

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