Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8ba2deb6d3c6d12…

MALICIOUS

PDF

41.2 KB Created: 2020-09-17 16:39:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d2dac679cd297899ed0b50ed14a9d4b SHA-1: 3ec52ab9951196a5073a25ec39433fe1878bdb81 SHA-256: c8ba2deb6d3c6d124133e79a3bf865263d673ff3c402d1e5f066019d08aeac5c
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 Shopify. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.club'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=hatchet+answers+chapters+15-16', suggesting a lure to a malicious site. No scripts were extracted from this sample.

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.club/wix?keyword=hatchet+answers+chapters+15-16 In PDF document text
    • http://files.kingofcarsandcoffee.com/uploads/1/3/2/6/132681337/7e6dfe46f427ca8.pdfIn PDF document text
    • http://xisuveni.beantobar.ch/uploads/1/3/1/8/131856546/7619754.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/1/0435/4703/3752/files/c_format_string_specifiers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1010/4228/files/video_recorder_apk_no_root.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9898/0757/files/autodesk_dwf_viewer_free_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5960/9753/files/tezofakesavevuriguse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8211/9323/files/baby_shower_juegos_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4894/4284/files/notopodonolefozakepux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/48465164240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2332/files/united_way_logo_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/wonuxivibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2891/9973/files/best_new_restaurants_melbourne_2018_broadsheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4728/1062/files/physiology_mcq_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/beagle_video_song_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8202/8958/files/sql_server_management_studio_format_sql.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 3

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_off000062b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B3 5404 bytes
SHA-256: dabdfdcffdf4be0d5579e0a440e5b51cf9e7cda7ec2ae41b87231fbd001498e6
font_01_sfnt_off0000752d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752D 9804 bytes
SHA-256: efbe1dec58fbf876b8b5a7081805937382a4ad863dec9cee48e48a22f8e1a19e

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