Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd4392fba857649…

MALICIOUS

PDF

74.3 KB Created: 2020-11-25 18:22:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-25
MD5: eccd27f90db2c24ea4c6cdfdd7ede040 SHA-1: 56230c3f167fc166abaca1566354b37f84948e7c SHA-256: 3dd4392fba857649e88142f02e59a545addeb2e8b1c685d89ec527e41d261b81
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://traffmen.ru/wb?keyword=geography%20trivia%20questions%20and%20answers%20printable In PDF document text
    • https://basurujilitafap.weebly.com/uploads/1/3/4/5/134595952/7439264.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420902/normal_5fae3bf7d6c5f.pdfIn PDF document text
    • https://jozonoralemepi.weebly.com/uploads/1/3/4/5/134508889/siwubat.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/3350adb4-8ac1-4ee4-aed3-3dcd20ac13f1/minecraft_unblocked_texture_pack_1.5.2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52247d23-44ef-4c4e-8bbd-30c241a7f120/37304248829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/495d7614-63fb-4900-9144-91d3c1a5f54c/81863962596.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36b137b5-e96a-4ed7-a905-d6ac07601754/51229967772.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/19742789166.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/68388748943.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/470bc1c3-fbba-4ce6-9313-c0fbe09c48c2/warisileliluku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fd5ac3f-e18e-41ab-900b-e5452b36eb56/rurifem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa954a48-4a17-4ee0-a27b-5f68c1117b2c/vekafirakalodevusaxikaka.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_off0000e451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE451 5772 bytes
SHA-256: 3a47f7f7596970f274a22954d776f3f40b48067a31ea1143b3087c8b51923a3a
font_01_sfnt_off0000f7fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7FE 10608 bytes
SHA-256: ae10c545f76d28663f9ca26930f2530f39a52c15b8c2955ce442aee2402d6c1b

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