Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e61397b4890ab37…

MALICIOUS

PDF

69.4 KB Created: 2020-12-01 21:51:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-11
MD5: 04b46e796afa29436bb817daed84db68 SHA-1: 64c167220de0417d7b100363a8bfe776bf8949e2 SHA-256: 0e61397b4890ab37ed358850498b2b7a0c35de9e29d35e6252eb4bfda1174106
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cdn-cms.f-static.net/uploads/4480749/normal_5fbe631a1585d.pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369501/normal_5f8ac576b959d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412391/normal_5fbf95743f37b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_5fab1df72a71d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392864/normal_5fb8daac8fd64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465935/normal_5fa3a624b1250.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393772/normal_5fc68b8642875.pdfIn PDF document text
    • https://cctraff.ru/wb?keyword=articles%20in%20english%20newspaper%20pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/nitogewekarab.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c700.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c700.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000faef.bin)
    • https://uploads.strikinglycdn.com/files/424594b8-e026-42dd-9233-678a7f6a52c2/1819240814.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0309c2b-a04d-4120-84e1-99bf0a9b59f6/dosijifawutuzotetolorora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80ba5d5b-a39b-48fe-86c1-4f489c423e38/kezafisiga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67298e0f-33fb-4c4c-a1c1-cf32c60553d6/evaluation_cm2_le_pluriel_des_noms_et_des_adjectifs_qualificatifs.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 extracted file (font_00_sfnt_off0000c700.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC700 5176 bytes
SHA-256: c49914d23a1cebf94fb62fd0362d46272749b69cfb1810aedf464c7dea795c90
font_01_sfnt_off0000d89d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89D 10040 bytes
SHA-256: bcf0240c8c2836fc927d79ab08badaf7140c49cea632f6b6aa35365743443a1a
font_02_sfnt_off0000faef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAEF 4324 bytes
SHA-256: 8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd

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