Malicious PDF — malware analysis report

Static analysis result for SHA-256 793da78edc82cad7…

MALICIOUS

PDF

42.1 KB Created: 2020-11-04 18:19:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 72f628df5f8db4970c3f6afe3f7ce1be SHA-1: 58e3af86fd97a191275da49f95c3f415ea65b646 SHA-256: 793da78edc82cad7f5dbccd8758c8514bde0064519f223afccf62c251e9351ff
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://ggtraff.ru/strik?keyword=crest+high+school+football+ks In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369901/normal_5f9e779f545ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405641/normal_5f98c3c5811b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367642/normal_5f886099358d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378171/normal_5f8bab84027c3.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/lefemijip/juxurax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/693f85eb-f42a-4427-8877-670a94ccb935/27370736798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ba53d91-fb72-47df-9b70-d5ba8f087a66/icons_jdr.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/boogie_woogie_blues_piano_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d5aaedd-7ac4-4d85-b1da-f9f0a070c309/nufoxufeluledena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb29884c-6ed6-4019-a513-ba3fdca0a179/xovanasogorizeze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60187e58-7c08-4a77-b778-54e84b55fe86/50661350067.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/case_study_examples_for_mba_finance_students.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/sijegapafexosib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/653453c3-df0e-476a-a6ef-3aa00f8537e1/lixopezadinexunerigeraxef.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/89939975523.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cddffb86-5b33-4b60-a1fb-b31a23e519b2/hlio_creder_instalaes_hidrulicas.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_off00006166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6166 5252 bytes
SHA-256: 5836be7b8e11fee9c746761fcb5d4fb035700187845eed4706ca57cb360a961b
font_01_sfnt_off00007342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7342 12700 bytes
SHA-256: 76bd347355fef048abcd017a798664cabec6dd02bea7a57e8b870e5f3c48bb42

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