Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7fa0cfdd266410…

MALICIOUS

PDF

69.8 KB Created: 2020-12-07 20:17:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 1b2f3c9df9ea60cd617164615d718d85 SHA-1: a114bad2801b88b590a00fe4e421f8540eafa9bc SHA-256: cd7fa0cfdd266410ad2da0bec94734dd8b6a1ba4019a034643394f536aa14c08
186 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.
  • 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://trafffi.ru/strik?utm_term=las+ventajas+y+desventajas+de+la+fotografia PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4427501/normal_5fc84ff553060.pdfIn PDF document text
    • https://mabelemaje.weebly.com/uploads/1/3/4/7/134705401/6376d942ec.pdfIn PDF document text
    • https://zasawebisev.weebly.com/uploads/1/3/4/8/134865024/0fac48.pdfIn PDF document text
    • https://vumerumub.weebly.com/uploads/1/3/4/6/134634189/sogeluxo.pdfIn PDF document text
    • https://moviwinexanasi.weebly.com/uploads/1/3/4/3/134314602/duremaxezumuli-gadonivurezekez-vexosufamo.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/2840615.pdfIn PDF document text
    • https://fibuwuvonej.weebly.com/uploads/1/3/4/2/134265895/xarariga-rikapogefat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370092/normal_5fcb5d62347ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f872f4cc4e96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481821/normal_5fa825f1eff37.pdfIn PDF document text
    • https://fodexugamo.weebly.com/uploads/1/3/4/8/134851562/polokumogoja.pdfIn PDF document text
    • https://wojeribexojuxu.weebly.com/uploads/1/3/1/8/131856158/tesida_sidakun_bunarosifo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401716/normal_5f937f4138ccc.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/e040616d-c97f-40b7-b37f-3a3af202afc6/bogonojap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3eaa93b1-f688-4976-871b-b92759069676/m-audio_studiopro_3_parts.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_off0000d359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD359 5256 bytes
SHA-256: 6c998146a5b6cef95e23221d809a3d3a884ded7416dff49c1196db6937eaa4a3
font_01_sfnt_off0000e55d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55D 10860 bytes
SHA-256: 4973261487cc90bbe9955f7c94d1f9d9f4f420577b2ebe1ad27e1d8c3a04e828

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