Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03b042f8ea157a6…

MALICIOUS

PDF

67.5 KB Created: 2020-11-10 05:54:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 20ab291516753ce96cc25d19a57fa373 SHA-1: edde59255f38849372ee1643ba61b5cdc96d4029 SHA-256: e03b042f8ea157a6f24da9efe517d546d91d3f23feca2c1447998f107cf86298
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffe.ru/strik?keyword=genoa+area+schools+genoa+ohio PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374545/normal_5f8f6b8d9e52f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366395/normal_5f887b4d2fc9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406806/normal_5f9482f28ec6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368244/normal_5f87645f3470e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368474/normal_5fa9de255d46d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375896/normal_5fa7869e49e51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383147/normal_5f944419a4f8e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/dc5518e1-c2fd-46d4-aee0-4b7a4f78d584/71863943511.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a5b05c0-2ff9-4f3f-bd24-d1bc6229262f/powuvomobugoxeze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/098b0074-06ac-4071-8d17-519e20992dc8/ruzosopidovaponajigixaxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d41bf5bc-da5c-4c2c-a071-5cdc1d54d27b/derimimuzamoguzobipow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37958056-12d2-413d-8535-fc474ffd4d17/motu_patlu_kungfu_king_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fb7c2ea-acab-4c29-b075-b0eadab03ca3/understanding_movies_13th_edition_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/earl_nightingale_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc6b8a7d-f574-44c6-a2b7-300a88316f36/42686365779.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92002460-b4ab-4f6e-b558-9717ac31fa5b/fimelitasujup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cdefb2c-6ee3-4bee-9366-7b6fec3dc805/67389174611.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/apostila_auditoria_fiscal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD7D 4800 bytes
SHA-256: 2e13759310666fd92c12ec25264581f958ad4051269b7f56b2f7a30bbf5db403
font_01_sfnt_off0000cdb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDB4 10788 bytes
SHA-256: 209a0cf1080a08ebe0e9f2773810b44d7ba4890e0c9bf545ff84b02d5d9b3952
font_02_sfnt_off0000f2b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B5 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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