Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d23fcfa46bb4c9…

MALICIOUS

PDF

66.5 KB Created: 2020-11-28 18:20:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-27
MD5: 1dc3bc842463db67b38075b1b103ef53 SHA-1: df3674d5e90d59674e9e57a3be8eadaf7f3be308 SHA-256: c5d23fcfa46bb4c9b79c5b6e1f5a3cb3e5bd3a678ec69632761073bcb532b7fa
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/strik?utm_term=a1+poster+size+in+inches PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452152/normal_5fa88bb417fd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383136/normal_5fa306b1df79e.pdfIn PDF document text
    • https://votawaxamudogop.weebly.com/uploads/1/3/4/4/134400347/sapuduxeta_kukibakanes_xutekelu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366040/normal_5fb7de2ea818d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379968/normal_5f9254f693790.pdfIn PDF document text
    • https://najatiwexit.weebly.com/uploads/1/3/4/0/134041182/9166960.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/d087e215-7e9a-44af-8ed8-2c311bc696ee/fox_valley_guide_service.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02c19e34-b3d8-49f8-8b18-fee0ebc87c84/wacom_bamboo_fineline_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1436541-39a5-4598-9641-92933f7a4477/saboponixok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cd873c2-0dc2-4243-9f5d-9f8a40d9e82f/paniwefitivoralutor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14b76966-f00c-4b3c-b2ad-110efdd608bd/fiche_complmentaire_autre_demandeur_permis_de_construire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63d3efb6-9490-47fa-8860-50d8711e2fc2/batman_arkham_knight_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/94455698523.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd09008b-299e-423f-ba00-553453feeebb/asa_made_jugyou_chu_manga.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_off0000c8c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C1 4868 bytes
SHA-256: b7d303bc0ee26da09c6e4b435fc3bf041fc15dea97e5fb8357871a31e024ba5b
font_01_sfnt_off0000d95d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95D 10584 bytes
SHA-256: 63e9113c20b1af2b1da52dfc8c67f4d5da8c6bb58bb453e4d419a74b4b1f3dd3