Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f292017d08ef523…

MALICIOUS

PDF

40.9 KB Created: 2020-08-05 22:08:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05593d213b3a9ba4d3e575db85eb9148 SHA-1: ba4264e2fe06fa5b714dc62ecc8dccbdb4835325 SHA-256: 8f292017d08ef523cb84c8ddf05edd95ed81f415e4a60e8254f8a7b6cb80726a
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/wb?keyword=sample%20solicitation%20letter%20for%20donations%20pdf'. This indicates a social engineering attempt to trick the user into visiting a malicious site. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm for SEO poisoning or redirection. The ML classifier strongly supports the malicious nature of this PDF.

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/wb?keyword=sample%20solicitation%20letter%20for%20donations%20pdf In PDF document text
    • http://files.lovehealthyme.com/uploads/1/3/1/0/131070894/bbfc027a3d.pdfIn PDF document text
    • http://files.wencinja.com/uploads/1/3/0/7/130776246/vanivufigede-xexolewukun.pdfIn PDF document text
    • http://fumodu.bronwen-jones.com/uploads/1/3/1/4/131438137/jebogil.pdfIn PDF document text
    • http://begon.communitycreditrepair.org/uploads/1/3/2/7/132710780/jisarafod.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/1/0437/5543/8234/files/75954821192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/2013_chrysler_200_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/alerting_services_in_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7102/6853/files/apple_mobile_device_support_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8702/6590/files/force_checkout_git.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5742/2240/files/notepujowapowezuvusapiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1732/0094/files/attendance_sheet_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4925/5061/files/12279222335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7656/6684/files/57483663574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejupabofutub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/mavaxusefeb.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_off000062c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C8 5404 bytes
SHA-256: 037f8e30e6bde297d35a444a0737c2277517b5d39ebec5543ae883ee9a356a47
font_01_sfnt_off00007510.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7510 9868 bytes
SHA-256: f5283b392ca7d095a86c8ccf62244546d2aa87985e9ccc067131219d81ecbdc7

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