Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d36042c6601efa8…

MALICIOUS

PDF

72.4 KB Created: 2020-11-21 05:43:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 92655d1b2f081d8307703fd3cf036e5b SHA-1: 6fa214c90bc4ad10d445306705260a66a90e05fe SHA-256: 0d36042c6601efa867591c717af7b650db2ba97b2768af89f86abe757e186dbc
196 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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/wb?keyword=complex%20numbers%20pdf%20notes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425211/normal_5fac1760846d9.pdfIn PDF document text
    • https://totobulamu.weebly.com/uploads/1/3/4/3/134310137/79138.pdfIn PDF document text
    • https://josafobuwevaj.weebly.com/uploads/1/3/4/4/134464642/2a9f354a994a.pdfIn PDF document text
    • https://rugurujumififez.weebly.com/uploads/1/3/1/3/131384765/5a2e371a.pdfIn PDF document text
    • https://zaxanedipujez.weebly.com/uploads/1/3/4/5/134582154/merozukiruxabi-pejajikimep-wilane-narisut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379723/normal_5fa4c4b04c4e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447497/normal_5f9ee85326014.pdfIn PDF document text
    • https://kodopagedo.weebly.com/uploads/1/3/4/3/134350575/5668346.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/androidxref_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/bambara_kannaley_old_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/one_click_root_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/ge_profile_harmony_washer_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/beethoven_piano_sonata_23.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C0 2976 bytes
SHA-256: e9b23c4f47947327312f7a1a6237ed4b4067f466b5b0d1c8b9587d8f4eaedd8a
font_01_sfnt_off0000de67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE67 5092 bytes
SHA-256: ebf69ec0374ceeaa075697a98da789b705fbd34f8274accb9df567189da2078e
font_02_sfnt_off0000ef98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF98 10828 bytes
SHA-256: 84fd7662814f5571232c4954701971eca7e2aa1934a98fc0e864e742c57c1ef2