Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a38074d1ffa586f…

MALICIOUS

PDF

41.3 KB Created: 2020-09-18 16:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77644b3e7d459ecf67cd7b8d0185ac9d SHA-1: da5b0641f77e4c1f618d9730f2fd9e5a219d28d2 SHA-256: 7a38074d1ffa586faea26e613b57f6631a62012c5f3ca964496f6e6dfe836d90
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to redirector domains and a link farm designed for SEO manipulation. The primary redirector URL, 'https://ttraff.link/wix?keyword=allegrippis+trail+map+pdf', suggests a lure related to a trail map, likely intended to deceive users into clicking through to malicious content. The ML classifier strongly indicates maliciousness, and the presence of redirector links confirms the intent to lead users to potentially harmful destinations.

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.link/wix?keyword=allegrippis+trail+map+pdf In PDF document text
    • http://kasuju.atlcasestudies.com/uploads/1/3/2/8/132814930/4d98148f1380.pdfIn PDF document text
    • http://files.urbansoundstudio.com/uploads/1/3/1/4/131483149/5341926.pdfIn PDF document text
    • http://files.leolinbowen.com/uploads/1/3/1/3/131379700/2801987.pdfIn PDF document text
    • http://files.diagnosticequipmentstore.com/uploads/1/3/0/7/130739993/rafivijofakad-juruxabida-wusivupetu-wolewubafosav.pdfIn PDF document text
    • http://files.innovativecare4u.com/uploads/1/3/1/4/131408280/wigununuju-bupeweriro-milopifafapusad.pdfIn PDF document text
    • http://files.amaranthusestate.com/uploads/1/3/0/9/130969370/zofogozugobiru.pdfIn PDF document text
    • http://bikezag.sunshinecoastcelebrant.net/uploads/1/3/2/6/132680981/e88b8f7fc10e.pdfIn PDF document text
    • http://files.ratusaupdhpe.com/uploads/1/3/1/3/131380688/lutituxiv-demuz-nusakido.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/1/0431/6259/9583/files/gafasudolefafum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/espresso_test_android_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9200/0422/files/vebuxatag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1285/files/97486884058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/60047038883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/9013/2389/files/lindsey_stirling_underground_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/4126871419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5369/3593/files/13625824805.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_off00006428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6428 5348 bytes
SHA-256: f18cd19edda05bd2f611b8108eb64512b7e999c534df8b2bd31e90d84f4683c0
font_01_sfnt_off00007644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7644 9956 bytes
SHA-256: 828dad981555500d18116e78c4f814b997b051758ac8948d98cc9242b82c8b93

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