Malicious PDF — malware analysis report

Static analysis result for SHA-256 626e36430b9f2a42…

MALICIOUS

PDF

46.1 KB Created: 2020-07-30 07:20:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b3840a488755c04fb494dc82cca923af SHA-1: 0e2aef2e0bf9be56f827b81d6c1fbb9d2f99d8c0 SHA-256: 626e36430b9f2a42425b06a9e90676b988e9ad71538b177b54d14543898c6ba3
194 Risk Score

Malware Insights

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

The PDF contains multiple links to an SEO redirector, specifically `https://ttraff.com/pify?keyword=patofisiologi+dan+pathway+pneumonia+pdf`, which is flagged as malicious. This suggests the document is part of a phishing or malware distribution campaign, using a seemingly legitimate document title to entice clicks. The presence of numerous links to external PDFs, many hosted on Shopify, indicates an attempt to create a link farm or distribute further malicious content.

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=patofisiologi+dan+pathway+pneumonia+pdf In PDF document text
    • http://files.mouseandcastle.ca/uploads/1/3/0/7/130739971/1189821.pdfIn PDF document text
    • http://files.freedomhoops.org/uploads/1/3/1/4/131453536/9919727.pdfIn PDF document text
    • http://files.primetimetraveling.com/uploads/1/3/2/3/132302871/e145e561deb.pdfIn PDF document text
    • http://files.wageningenstudentfarm.nl/uploads/1/3/1/8/131856188/gutikitexutuxe-vawawuzepotox.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/1/0432/4930/3720/files/52578204486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9910/3136/files/lagirep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5837/3542/files/wuluwudemoxunala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9301/6222/files/3525841522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/gosidufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/bexesunexepagifuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/dafaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5676/6882/files/wivobejelonegatugapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/gobimulutojen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2541/5843/files/roxep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8070/4405/files/xikawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1678/8900/files/vexiraxijopis.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_off00007475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7475 5436 bytes
SHA-256: a21c5c42b3533649258adebcff3c6727e0ec6fa11b6e37d9dcf6f49291ec4386
font_01_sfnt_off000086db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DB 10572 bytes
SHA-256: 4ad272c286cbaef0315dd4811076962e9a29edf72398e5db5c071b1c15d7d71b

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