Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d33e149d16b1b1…

MALICIOUS

PDF

64.5 KB Created: 2020-12-14 19:12:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 5e5b36c78c088d083d1394ad32bd8c6b SHA-1: 328013602f2c7d31beac147cf328945346976c6e SHA-256: c5d33e149d16b1b115a48bfcee9a83dd222597ce9de7badbf1350a13dd059324
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://traffnew.ru/wb?keyword=segment%20routing%20part%202%20pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444657/normal_5fd175da0dbfc.pdfIn PDF document text
    • https://gilasagajeradek.weebly.com/uploads/1/3/4/6/134632792/ef8fca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367305/normal_5fd77d6c42289.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369174/normal_5fb9f49d67063.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/mivokozibu/5367076436.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/cow_eye_sclera.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/18475625021.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/24786741975.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/zikujukokeniti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62ff2348-0f9b-4e8f-8406-f0205497b634/93912750141.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a2ca3b3-8842-4e48-8bba-c562d13311a6/77201251726.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/video_cutter_full_version.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_off0000c02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC02C 5388 bytes
SHA-256: 7fabff472db88ba5dcc766ae65ecc570464d428b444dba62c05b99efeec1a717
font_01_sfnt_off0000d26e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD26E 10268 bytes
SHA-256: 8129ef111e089f5ae9099b6ea06be4d2ced34d265e62612f44beed84a6d2431f