Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c5b824b34964ebb…

MALICIOUS

PDF

113.5 KB Created: 2020-11-23 06:16:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 48c66703ad4c9007d477efd7849542e5 SHA-1: 1c78d13375b3de343d3a047e61e4aad7b8987975 SHA-256: 2c5b824b34964ebb54ca71ad990a1df9989ba55686d3434de3e0d25c9353e208
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also strongly flagged it as malicious. The embedded URL, 'https://ggtraff.ru/123?utm_term=risette+persona+4+social+link', is the primary indicator of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/123?utm_term=risette+persona+4+social+link In PDF document text
    • https://cdn-cms.f-static.net/uploads/4454684/normal_5fba606445dee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369774/normal_5f88697c39ce2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379240/normal_5f8d9b0832064.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378608/normal_5f9695061d3e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453550/normal_5fabbb9c74cf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391636/normal_5f8f3d6b80c55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366947/normal_5fa63112989c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408865/normal_5f926280cf21c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370263/normal_5fbb2811a78f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466368/normal_5fa9b44b05633.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505096/normal_5fb89baa8e6af.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5352e2dd-552a-4127-91b2-848025eef39b/wirudomofuvemu.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/mi_air_purifier_2s_manual.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15778 4656 bytes
SHA-256: f93e8077a8d2593ced707f23fece3e92b5735d7a5e1523d88269cc063342b063
font_01_sfnt_off00016807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16807 5088 bytes
SHA-256: 1ca91a0ea280d1f8d430b98af47875e266f92cbf869634ee007d6f79aa3f7f8a
font_02_sfnt_off0001796e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1796E 12276 bytes
SHA-256: b34e598d076a09a48db727d23f1cbe167aa87a14942343885e9568512d0efc8c
font_03_sfnt_off0001a163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A163 16492 bytes
SHA-256: 66e69ca0eb74035a716086016c12656a8b2958d0f37f1a6ea190d64d4aca0d54

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