Malicious PDF — malware analysis report

Static analysis result for SHA-256 786464db18126199…

MALICIOUS

PDF

64.0 KB Created: 2020-11-26 13:26:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: c4353a5aa073bb2635cdb20a0a71fa2c SHA-1: 896274aed4d5fc04b643b68d1d5790717477bea2 SHA-256: 786464db181261994014337a152b93643f98b07930b5d5bc8559350c4ae57540
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=psoriasis%20disease%20information PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388617/normal_5fb2901659e6c.pdfIn PDF document text
    • https://ramaxuvezida.weebly.com/uploads/1/3/4/3/134327775/bukimule-pasabeniwimikut.pdfIn PDF document text
    • https://desaviguwogo.weebly.com/uploads/1/3/1/8/131871994/7674776.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415946/normal_5fab5661b0320.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379387/normal_5f98b4ae59b16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404133/normal_5f9eb28a1836d.pdfIn PDF document text
    • https://witorovi.weebly.com/uploads/1/3/4/6/134643219/92bcd69.pdfIn PDF document text
    • https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/gezumuwavizegekis.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/fujadabez/imperfect_vs_preterite_worksheet_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/32612524342.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b4b2573-5cd4-4ac1-ad35-c5c4d72b3ac4/46820677764.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/suffolk_county_ny_arrest_warrants.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/krystal_restaurant_menu_nutrition.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/36848563749.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/medical_brochure_templates_psd_free.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_off0000c080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC080 5024 bytes
SHA-256: ca73e07145e04e24fbe4d97ca6334ab6f11e8a69868657b5039295cfd98973d5
font_01_sfnt_off0000d17e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD17E 9876 bytes
SHA-256: 35ac0d91eb93977f393666d2775cc5f115a64990be7bf3b7c12b3a8a68c2767b