Malicious PDF — malware analysis report

Static analysis result for SHA-256 3129ff2bf293330a…

MALICIOUS

PDF

63.3 KB Created: 2020-11-09 18:18:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 83a9182c8c8cded03e3338c0b8120f42 SHA-1: 719baceec16f054adca9fb56422d41b1d83287fa SHA-256: 3129ff2bf293330ab4ba500a80b9484a08fd4ebbd815eddcda05c4cced9f098c
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/123?keyword=dragonstone+kingdoms+game In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368475/normal_5f87f313adbd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401559/normal_5f95f61a6ee08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482190/normal_5fa8ef4c604aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393624/normal_5f9ce97024203.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/e3ac15a4-0258-4498-85e9-771e4efd9f49/80391770417.pdfIn PDF document text
    • https://s3.amazonaws.com/digigitusuduk/persona_5_leveling_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbae1416-819d-46fc-a328-2a7a4ee3d20d/waxanena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7925cce4-a98d-486d-ac66-fa7094f0aede/que_es_la_utileria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/507bd776-0f2c-4d2d-90f9-501927186907/66738133874.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/multilingual_education_in_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7d9f535-98b8-4fc7-9f87-821adfa3787a/48755810883.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bcda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCDA 5176 bytes
SHA-256: b1d3ec5def35f4960c058a97884813c107e2f0da4e0093d8617c2ff136b1db77
font_01_sfnt_off0000ce65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE65 10180 bytes
SHA-256: 45787b372103cd330f282b5db519d7794f5fe6a34bf146e3aeec8f6c23bce0d9