Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07a9b76faaffe8f…

MALICIOUS

PDF

65.6 KB Created: 2020-11-11 11:46:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-07
MD5: 3a7a507ac9ad6dbad4c724d0c1732de3 SHA-1: b44769465421da7b1aee8453b50e3c0de98ee9d0 SHA-256: d07a9b76faaffe8f82e796813c85cbf46783b7c6037a6fcd81dd4c37590b756d
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://traffking.ru/wb?keyword=bob%20s%20blueberry%20farm%20hudson In PDF document text
    • https://cdn-cms.f-static.net/uploads/4386347/normal_5f8cb75a069ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386365/normal_5f9181a884424.pdfIn PDF document text
    • https://s3.amazonaws.com/betimugi/29663942396.pdfIn PDF document text
    • https://s3.amazonaws.com/zukukelejurotef/rage_stephen_king_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/casca_the_eternal_mercenary_chronology.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/liwubivobajodepa.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/relion_blood_pressure_monitor_error_2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420939/normal_5f96b65ba5e97.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/potemasoziriwanoperefozu.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/wawekapifusexavesojonij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421360/normal_5f9b7227c09d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365586/normal_5fa9ab5313d33.pdfIn PDF document text
    • https://mefogogid.weebly.com/uploads/1/3/4/6/134600117/17947c60dd52a1.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/sweet_potato_winter_squash.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c1e1.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c1e1.bin)
    • 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 extracted file (font_00_sfnt_off0000c1e1.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1E1 5440 bytes
SHA-256: d3d06cb1eb2e398519e56aab86ea6505a02c9fea11cce37d1cc22e5f916c3ed9
font_01_sfnt_off0000d438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD438 10852 bytes
SHA-256: eceeb17141f7e3afc780ccea925f2ed973da327ff351eb122584b3f075f9c284

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