Malicious PDF — malware analysis report

Static analysis result for SHA-256 425f310e1980d30f…

MALICIOUS

PDF

58.3 KB Created: 2020-11-13 13:47:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: b7d5f48ce9429d5006581add710a5400 SHA-1: ffb9579ebc19433d4f8af2c92c715936d6382561 SHA-256: 425f310e1980d30fa3d0a105ce3d16533d0bbcb59736567c4bc082677e46a77d
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/123?utm_term=delta+bench+band+saw+for+sale In PDF document text
    • https://cdn-cms.f-static.net/uploads/4424696/normal_5f9a82a0a1b96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369315/normal_5f918baf2d8de.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/c311c.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/2b4c66b2-543e-458a-89f9-6aed968ca1bd/xinoratigutipok.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/vukewibir.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/ssh_rd_rev04b_iphone_5c.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/allen_carr_quit_smoking_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61350dd0-c783-4e3c-ad2e-077a6885d748/asmr_japanese_download_site.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/xujuvirum.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/benew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c073920-1e07-4564-9712-5f950b69c768/fixisegotitusivotixulup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af3d18f9-1fb5-4990-9e64-cca9b8c1fcc3/en_50126.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/43530094412.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73af94c2-7f62-4828-a561-5e8086270f62/tefal_gv8976_kazanl_t.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/rikofafilolediluwedo.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_off0000aa2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA2C 5340 bytes
SHA-256: cab43218a0aaf14643cb9d2fcb4d06171a88ef549466490d1044108d03f64e26
font_01_sfnt_off0000bc5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC5D 9352 bytes
SHA-256: 6694ae0f471159857d559d7f621788e3f67a96059bd489a1402b717f7494c2b1

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