Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bef8ce91eee4ec2…

MALICIOUS

PDF

72.3 KB Created: 2020-08-12 13:44:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a1a9e7b5c493f006ac27ddab2403a0b SHA-1: b82dffade3cc056b070fde79652a9d1885fd26d0 SHA-256: 8bef8ce91eee4ec272349d98933d669eb6f4ad62ddd0d4447c7379e7b64fefac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.cc/pify?keyword=define+sanitation+pdf. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution.

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=define+sanitation+pdf In PDF document text
    • http://zamevigo.code4five.com/uploads/1/3/1/0/131070711/tuzitinesugos.pdfIn PDF document text
    • http://xugewev.mfautodetail.com/uploads/1/3/1/8/131872225/gonibufu-tetugop-vapigubebawaxal.pdfIn PDF document text
    • http://files.oaklandfootgolfclub.com/uploads/1/3/0/8/130874025/182f6dee6c2ab8.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/1/0431/4205/4048/files/dinavapevor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/barefoot_gen_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7075/8820/files/lutegagawama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/micro_battle_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5969/9109/files/xuramemetizabakuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5425/9610/files/wp_engine_disallowed_plugins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/sample_resume_for_fresher_accountant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/30566288961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0570/5374/files/nunewerokajixovima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0653/3525/files/gizovavadowurijima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/80627094420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1512/6685/files/composite_numbers_1-_100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6387/files/past_authoring_program_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/42639211037.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 2

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_off0000da56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA56 4904 bytes
SHA-256: 6e6247576ed97a727cbf1cd1f4344360049569a18d741043ad07731db693ce3c
font_01_sfnt_off0000eb20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB20 12316 bytes
SHA-256: 88ac46e45a4592e4cbf735b4f4e37be7c785027dcdd52fdc833b22585ad064cc

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