Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d07ad50300bf91…

MALICIOUS

PDF

71.6 KB Created: 2020-12-31 03:56:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-27
MD5: 9a953ebcba26ea326b3dc65cd80b0086 SHA-1: 038b9c1b639a06e8c22bb09993c26a7dcbb89d6d SHA-256: c5d07ad50300bf913c8936fbfbd324d5f3c32bd055536ca455c9156904e20216
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=gmail%20sign%20up%20mail%20login PDF link annotation
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/4b2ef9ff39.pdfIn PDF document text
    • https://femitinekabel.weebly.com/uploads/1/3/1/4/131437683/watebupuwedu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457586/normal_5fb6b31a8236a.pdfIn PDF document text
    • https://xibedawik.weebly.com/uploads/1/3/4/5/134584063/f9ebf38.pdfIn PDF document text
    • https://vukegodepobaxi.weebly.com/uploads/1/3/4/6/134676750/rudamizopimogag.pdfIn PDF document text
    • https://zuxubemusaf.weebly.com/uploads/1/3/1/4/131453996/sosut_xositefisafunif_kolevu.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/rupatojuko/briggs_stratton_repair_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8a0f0f3-ea93-4692-ac10-8a62124333ee/37229148380.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/voraxurexoranewakogigov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4bfb1ce-78d6-482a-8863-491fecf08399/pexidizitipef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/348d0aa8-3048-4a7a-b69e-79029c41cd0a/27210838302.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/348064d7-75a1-44cc-879c-07b7c6a5f257/who_is_max_s_mom_disney.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4391152-9d75-4e78-907e-b26c076de5d6/twibell_family_mortuary.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_off0000dce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE3 5076 bytes
SHA-256: 09b4a759dcfb529a655a375544b41c76dd1ebe4a7cb00ea5c00cc3c6c12582f8
font_01_sfnt_off0000ee16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE16 10500 bytes
SHA-256: 6fed2af18bd4c7c470a633777a41017e9744dfb8f770daddce19db9bf6bd21f6

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