Malicious PDF — malware analysis report

Static analysis result for SHA-256 624347a0240b796a…

MALICIOUS

PDF

66.5 KB Created: 2020-11-24 11:28:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 1599b39f3098ae06a2d20e2f43864743 SHA-1: ad9286af5cf5c9dcae5388eac4545ccb2aae44c1 SHA-256: 624347a0240b796a6035a56474e49086dcd375d78cefa3ed7af06e9f77ff49f7
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wb?keyword=huangshan%20china%20travel%20guide In PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/a5fa1cef54.pdfIn PDF document text
    • https://kazajiti.weebly.com/uploads/1/3/4/4/134456981/8406349.pdfIn PDF document text
    • https://tukuboxux.weebly.com/uploads/1/3/4/5/134510407/makakimu.pdfIn PDF document text
    • https://kenolafopufa.weebly.com/uploads/1/3/4/5/134528829/717d55a6e2dbad.pdfIn PDF document text
    • https://xazunavawotop.weebly.com/uploads/1/3/4/7/134724639/5832615.pdfIn PDF document text
    • https://daxefumusadaja.weebly.com/uploads/1/3/4/7/134763928/2111d7c90f46b.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/5eb07ea0-1f81-44b3-ab82-4f8dfb2b2b57/55228694577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6525d624-1d5b-446c-aa01-81cb40104322/29772118504.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df7cc038-c0e7-4b17-b45a-684127c23dbd/16925647939.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cef4858e-53a1-45dc-bddf-59fe526aee4c/harlequin_blaze_series.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f3c9459-fe6a-46d7-92d1-0c0ecff22f22/xotafejut.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_off0000c832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC832 5220 bytes
SHA-256: d1c58a50229e4ebe3694665723e89caaec93e8e4285dc0c9e450afa21bafe193
font_01_sfnt_off0000d9f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F2 10444 bytes
SHA-256: 70d7b2d3d19788a9f1a15f19ef33854e730426c40557a1f76cacf5484ed289a8