Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f38e98b0c2dfebb…

MALICIOUS

PDF

41.6 KB Created: 2020-08-03 23:22:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4635fcb6a64a40f4728ecc1a7ed2d131 SHA-1: 655ac691f03e560b3decd8a74033def1f6d039e3 SHA-256: 5f38e98b0c2dfebba4609ff1f84a46f18bda514c151333854c2f07d146fee5e5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one prominently leading to a known malicious redirector infrastructure at 'ttraff.com'. This redirector is likely used to obscure the final malicious destination, which could be a phishing page or a malware download site. The presence of numerous other links, many pointing to Shopify-hosted PDFs, suggests a link farm or SEO manipulation tactic to increase visibility and potential clicks.

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=augusto+dos+anjos+pdf In PDF document text
    • http://files.ifeomaanyaeji.com/uploads/1/3/0/7/130775592/daxavoxuz.pdfIn PDF document text
    • http://files.doodadsandfandangles.com/uploads/1/3/2/6/132680901/ronifawodizod_setupuvosukuf_wewofokodefeju.pdfIn PDF document text
    • http://files.newcreationsdc.com/uploads/1/3/2/7/132741352/1d9f56fd9028.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/1/0435/5335/7985/files/25874363219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/3ds_max_tutorials_for_architects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2201/4870/files/sifebitesixepin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/55529816164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5316/2394/files/sapupaxowegotegemijudobod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8271/9136/files/52341327218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7737/6936/files/89043253753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5397/2630/files/refajupitamixabaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0737/7567/files/bank_aptitude_short_tricks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4542/8127/files/digi_weigh_scale.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_off0000655f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655F 5144 bytes
SHA-256: 681655f4e6c8555ad1ca05277baf36e28c6e7a4d7dbb9d2c791ccd03d92a9539
font_01_sfnt_off00007706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7706 10256 bytes
SHA-256: 155830b2703c20ce7f21b91acccaa0ec9a04eae29cafadfdf40a6d13a50b3ea5

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