Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa73e8b81b26524b…

MALICIOUS

PDF

63.9 KB Created: 2020-08-14 06:04:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa371cc2d7ec7a7f802031fc3c64ba68 SHA-1: 81502a4c65c0fa2723a3d313161681b83a3212a6 SHA-256: fa73e8b81b26524b4ddc9608015dae1fad01ef79c92a99d01892aa4517fcc978
194 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same suspicious URL, reinforcing the lure. The primary attack pattern involves redirecting the user to malicious infrastructure.

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=jogos+psp+em+portugues In PDF document text
    • http://latodo.galang-kangin.com/uploads/1/3/1/6/131606457/dujelate-jezijiluluzek.pdfIn PDF document text
    • http://wirelaba.heartandmindhomeschool.com/uploads/1/3/1/4/131410685/bowek.pdfIn PDF document text
    • http://files.centrallyesl.com/uploads/1/3/1/4/131438629/652979.pdfIn PDF document text
    • http://bixod.bluedolphineo.com/uploads/1/3/2/6/132681821/zelatog.pdfIn PDF document text
    • http://files.shirazpastryconsulting.com/uploads/1/3/2/6/132696558/bijularowamu.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/1/0432/9334/3899/files/difujotoxaxasekizon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5690/6918/files/46646840897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4189/7110/files/41262215614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1448/7207/files/puxasadatoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9498/1273/files/guxonosatitivugexosanebun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4575/4792/files/principles_of_behavior_modification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8319/2727/files/tuvitojude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4206/9918/files/sozusozukojesozazajed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7749/1093/files/vazewifipuvabebugere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/30637312539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0849/0663/files/befotajotevawogesu.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 5

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_off0000aee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEE8 4884 bytes
SHA-256: af4ba6e99afc58d2d45f2fc99fb04261404ce5c40dbddceb502d073a3adfc086
font_01_sfnt_off0000bf78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF78 16168 bytes
SHA-256: 3c87cc279b3d133a9255890537649fbd1d94160141dc9ddaf09c5fb44e5e9f3c

Open this report in the interactive analyzer, or submit your own file for analysis.