Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb646ce66f9741d9…

MALICIOUS

PDF

80.7 KB Created: 2020-08-28 12:39:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fc24a1487b2972cb95987a270f43c40d SHA-1: 85d6c182087a9cd009c2527e73225e32db6f7808 SHA-256: eb646ce66f9741d9e014d9dffd4d9a22722d65ffed361455dc2fdd619b71cba3
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and keywords related to a '2017 Ford GT500', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=2017+ford+gt500 In PDF document text
    • http://files.bodegabayhouse.com/uploads/1/3/1/6/131606165/6963368.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/1/0431/7410/1160/files/61680562493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9171/3447/files/jinamegawamusugolejuzide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0798/1214/files/tufuxogoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9729/1942/files/converting_bitmap_to_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0612/2393/files/wawovupobafomifixaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8664/1304/files/best_information_technology_university_in_the_world.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/1329/1422/files/xofage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nadogenomaxijedunebenez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3027/3435/files/meiose_et_fecondation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/9654177015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8994/2945/files/87292486263.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF4 5092 bytes
SHA-256: 5ab2ebf965ea986d73e4d871f37153b949766f1e64cb2bbcaa58c216be63b334
font_01_sfnt_off0000ee64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE64 16260 bytes
SHA-256: 50cd4b3701ba5cf2d46594740a6462d2c7ab4dcb67f4b2293d193363a0ddb77a
font_02_sfnt_off0001213d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1213D 16060 bytes
SHA-256: c43c81af3addadc619f1b50b0eb79006c69e58cb90abf43f7a5fbd940e22698c

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