Malicious PDF — malware analysis report

Static analysis result for SHA-256 317a40099855b6f3…

MALICIOUS

PDF

65.4 KB Created: 2020-07-28 08:28:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 842007c544ab67e26b655e060d524f58 SHA-1: 825fedf7502cf5d4abc4ee6e2fc71f721fb16f4c SHA-256: 317a40099855b6f3e37c622148b2ed54f7386a45fb9b90552a1d1ac4ef89426b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to an 'Ivey hba employment report 2017', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve search engine ranking for malicious content or to obscure the ultimate destination.

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.cc/pify?keyword=ivey+hba+employment+report+2017 In PDF document text
    • http://files.stmarks-benson.com/uploads/1/3/1/6/131636866/7e15335.pdfIn PDF document text
    • http://files.swindonheritageblueplaques.com/uploads/1/3/0/8/130874587/1461531.pdfIn PDF document text
    • http://files.starwarsjournal.com/uploads/1/3/0/7/130738704/1067158.pdfIn PDF document text
    • http://files.aptutorgroup.com/uploads/1/3/1/4/131410545/b2d2eacb7.pdfIn PDF document text
    • http://files.416neon.ca/uploads/1/3/0/8/130813409/c03376e42370.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/1/0430/9522/8565/files/wedusazubomelituk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/93428613134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17524121831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2674/1405/files/mutaruvuribalozotunikolek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/budawamezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/16872120065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/gigusudiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0805/6740/files/68030077102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/59978127317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9088/6312/files/xiwusubifiresupamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8874/8452/files/87721376215.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
🗂 Part of campaign: stmarks-benson.com 6 samples

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_off0000c1be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1BE 5268 bytes
SHA-256: df0090ec13fda4bac6da58fa2609120b511e0ad992994cfc83c4ca382ff015c6
font_01_sfnt_off0000d388.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD388 10736 bytes
SHA-256: 4ef11b705b5605dfafaec0d9be953a2fbdd06f365c22949827b392f89e89b02b

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