Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4567a1268cc85c5…

MALICIOUS

PDF

184.1 KB Created: 2020-08-23 15:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 812ccf9a1197140a1764540c3feab8ab SHA-1: 2bf748a2d7ed0dcf29243938f0372451b87db4f7 SHA-256: c4567a1268cc85c59167ea122ee40c324867afb430659802f4a147c8508a8151
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=aortic+insufficiency+esc+guidelines'. The document body, though heavily obfuscated, contains references to this URL, suggesting the primary intent is to trick the user into visiting this malicious site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.com/pify?keyword=aortic+insufficiency+esc+guidelines In PDF document text
    • http://files.pilatesdonewright.com/uploads/1/3/1/3/131384401/6711733.pdfIn PDF document text
    • http://galoro.latutora.org/uploads/1/3/1/4/131453119/xifemijajaxemurapuz.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/1/0438/6983/1323/files/wwe_2k15_community_creations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2301/4824/files/glossaire_du_transport_maritime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5817/5906/files/judolonorinopas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3123/0614/files/abyssal_demon_afk_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5848/6678/files/pavovufasavap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7283/0105/files/54212818166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7091/4717/files/zidexomamaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5552762143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5045/8520/files/waste_management_project_work.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_off000279f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x279F6 5072 bytes
SHA-256: 602dc44c379888fb1d868bb5fbf6d9767657a9cf74dcb003feb4cbd13a3c0e0e
font_01_sfnt_off00028b53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28B53 15656 bytes
SHA-256: ec875e5b795f6bbc3591ac8c2832b4283dad361c94142d61d8bafd9dbd7934e0
font_02_sfnt_off0002bcc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCC1 16148 bytes
SHA-256: 43dd7310e986e37c0562d6efd2a67b6291a0d41fa892ecd43b306c3e7231f7b7

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