Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcc1900ce6036cef…

MALICIOUS

PDF

148.6 KB Created: 2020-08-22 02:19:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 608fa24816d62fdfd557484196a0308f SHA-1: 4ffcbcc98d0092e85f6b944c5af2b28784c16a18 SHA-256: dcc1900ce6036cefb4ad21aeebfae1d849d2d70ed9a0ddc155524ea2eebd37c3
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, 'https://ttraff.cc/pify?keyword=candida+treatment+guidelines', is presented within the document body, disguised as 'Candida treatment guidelines', likely to lure users into clicking it. No scripts were extracted, and the document body was heavily obfuscated, but the primary malicious intent appears to be redirection to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=candida+treatment+guidelines In PDF document text
    • http://jenaza.bryanadavenport.com/uploads/1/3/0/7/130776585/8180764d7aef47.pdfIn PDF document text
    • http://files.baybat-edtech.com/uploads/1/3/1/4/131437443/bujibefixonam_pepubudibesu_jivamun_bumajejubatexo.pdfIn PDF document text
    • http://files.skyfootgoddess.com/uploads/1/3/1/4/131406806/329971.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/1/0433/1352/8987/files/99956374851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/catheter_care_guidelines_for_nurses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6318/9405/files/hall_ticket_irda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/34837418752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1024/5279/files/jeopardy_questions_and_answers_for_seniors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8553/6159/files/lawevinifibewizusos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3253/files/rpn_calculator_ruby.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/sufojuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/kufivejofejutirogutamexan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8393/2582/files/51871086340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4038/1855/files/38367431042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/simuwinog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/2525/4811/files/keguxuwe.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
🗂 Part of campaign: baybat-edtech.com 4 samples

Related samples 4

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_off0001f90b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F90B 5052 bytes
SHA-256: 858a6ad5066acd1789018399812581cb38d05f742d6ef8afd2140d42ed57ad69
font_01_sfnt_off00020a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20A1F 10656 bytes
SHA-256: 4f1fbd4c0c66f213aae066871058ee64067a1c11dcd7f6ecbb712b992a1041e3
font_02_sfnt_off00022eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22EB9 16272 bytes
SHA-256: 0312b61fc3a6ecbd749b968f662005aed93e9a07904535f38df0b52102374495

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