Malicious PDF — malware analysis report

Static analysis result for SHA-256 0365faeaf8bd8443…

MALICIOUS

PDF

37.2 KB Created: 2020-08-01 14:04:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a28820f4f14c7cef9a4744492e23e17c SHA-1: 65f580bc704c27c90aaa843647c38da225b87759 SHA-256: 0365faeaf8bd8443b10a7f36ca163e7e6f57aa7a95bdd4762fd9b578828da28d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to a redirector service. The primary redirector URL, 'https://ttraff.com/pify?keyword=50+hours+of+origami+pdf', is flagged as malicious. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution. The ML classifier also strongly indicated 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=50+hours+of+origami+pdf In PDF document text
    • http://files.coljohnbutleruel.com/uploads/1/3/2/6/132682090/f8d2aff487b22.pdfIn PDF document text
    • http://files.alluregreaterswiss.com/uploads/1/3/1/6/131606861/1869157.pdfIn PDF document text
    • http://files.happydogsestepona.com/uploads/1/3/2/7/132710700/4227128.pdfIn PDF document text
    • http://files.essexvet.com/uploads/1/3/2/3/132303286/4778540.pdfIn PDF document text
    • http://files.k10research.com/uploads/1/3/1/0/131070633/0701f5.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/1/0433/6097/7048/files/88462809992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/sasuzojopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/zokasimawuzesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6241/files/70787386091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/finereb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7922/8833/files/vigiwijujasupevafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5374/4279/files/nozuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/how_to_delete_cards_in_trello.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1185/0918/files/5457753284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1727/3497/files/likebelimegobivowulimix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69696378660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4858/2820/files/27424258027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8553/6159/files/xebavemikenovisajige.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_off000051db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51DB 5596 bytes
SHA-256: 6387317ab3fdcf527f604ad07864a43653ba194cb6580a0cd605899e25cba7fe
font_01_sfnt_off000064b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B5 10364 bytes
SHA-256: b5829a5c27a7d10128b1a166517141480252b1603cdb2b57d7c2f8a4c5b40561

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