Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd56c0dc2f68e1a…

MALICIOUS

PDF

71.7 KB Created: 2020-12-27 17:39:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-25
MD5: 5e31e05bbb5019f92a29da1b10d8af7b SHA-1: cfc7ca8760284634941bfc84142ea418090d97e1 SHA-256: 3dd56c0dc2f68e1a5a2adc1163ed2669cf9e59cf09c591018886ae9074153515
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffe.ru/wb?keyword=cell%20wars%20207 PDF link annotation
    • https://zulujiporanaru.weebly.com/uploads/1/3/4/5/134590758/f106f265f484.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421776/normal_5fb8de97d5f46.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/07615d5d-926c-44b2-aee9-f9f84f5f3109/12562535851.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23a79ea3-0b83-492c-9273-64583cdff0d9/furupuguwidix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdfcaf80-65f5-4b53-923f-a009b77e616a/44879043275.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05216845-1b55-4bb8-b86e-cd995cd2e104/67967906883.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ddbb0aa-f796-453a-89b0-574a1bb06c46/48200664199.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/cuneiform_meaning_in_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46a1a761-e295-45b1-92f7-219c76c8682c/xokomajilubonobufuwipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39cbe42d-fd7c-46e8-99ef-11814f521506/xizituw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/390ceca1-3cbf-4aa1-a94b-0e2c279b8314/84597168150.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2acbc239-293a-4203-88a8-bd6d174adae4/76666909439.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_off0000dd1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1F 5028 bytes
SHA-256: 947e65bae3982a069fe568bb9ab4d846f8add06ed132929171a810edf31ad7c1
font_01_sfnt_off0000ee59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE59 10520 bytes
SHA-256: 456498785832087f612f5f419e69326bbeb5a2a45796ef054ab68822ceae2a73

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