Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af6191f9f8dc55c…

MALICIOUS

PDF

72.1 KB Created: 2020-11-11 13:23:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 2587554df7bfbaccdc700a764f17ac9f SHA-1: 096df4dc7a56ea2e838b75f511a3780a6a7bd73f SHA-256: 4af6191f9f8dc55cfaa0030691af42a1698393c56214865575d656f1ab4ae2e6
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://trafffi.ru/wb?keyword=moshi%20monsters%20codes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381082/normal_5f99e8b11cf46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382961/normal_5f99ab1e339b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368975/normal_5f8b5bbca2bbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389095/normal_5f8f5cab87a41.pdfIn PDF document text
    • https://xarisoxetawekox.weebly.com/uploads/1/3/4/3/134399368/duvumunegimo-gesirexoxo-tunuravases-pifodare.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421476/normal_5f9e04fbe2012.pdfIn PDF document text
    • https://tutusilubejisev.weebly.com/uploads/1/3/4/5/134599447/5942938.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366623/normal_5fa23f089ccbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383798/normal_5f98571a0e30a.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/06c82ef9-7846-4aa0-b173-5d9e8f821012/aven_colony_cheat_engine.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/54138490291.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68e2d7da-c48e-4c24-9579-2b53e599525f/18172754529.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c999b3e7-63c3-40d1-8d3d-608224b74c84/padi_divemaster_knowledge_review_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78eee490-0106-4bd2-a0bf-3a455d752841/93366906845.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_off0000df2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2D 4944 bytes
SHA-256: ddd772bc65ec01ebb6f9a76728038e41cba104eca6615693b3a100acdba26f92
font_01_sfnt_off0000efda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFDA 11148 bytes
SHA-256: 843ccb46af8e3150f08050f9072326070ca43b6c0844818e958d7d77bb61ad7c

Open this report in the interactive analyzer, or submit your own file for analysis.