Malicious PDF — malware analysis report

Static analysis result for SHA-256 48a68fff803c4411…

MALICIOUS

PDF

75.9 KB Created: 2021-02-10 15:14:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 177aac682bc605beeafd91c18cd33d70 SHA-1: e6a60e44286beb3022bee0f14e98e4f1446c64ef SHA-256: 48a68fff803c4411acb79c7e708e4c9341dcf9717f4fe2cd058542a5b3566c33
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://baarspo.ru/123?utm_term=literary+devices+in+music+worksheet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448346/normal_5ff291c968fe9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419204/normal_6003795f45677.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409409/normal_5fe5e3d72f810.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407781/normal_5fe5e1d0d5eca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466151/normal_5fed14c64085f.pdfIn PDF document text
    • https://cdn.sqhk.co/kejalupegem/iaOjiga/rocket_royale_game_download_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/Nfib83T/robotic_balloon_dog_squeaker.pdfIn PDF document text
    • https://cdn.sqhk.co/dusivubeleza/4hcktbG/13_colonies_project_ideas.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/gjjgbji/monkey_flight_tickets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454547/normal_5fddcddc402d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420034/normal_5fdc32ac369b8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sosozodazu.epizy.com/19277377408.pdfIn PDF document text
    • http://webubekesivamuf.epizy.com/4603060798.pdfIn PDF document text
    • https://s3.amazonaws.com/popisiburewixuj/possession_of_deborah_logan_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/zuvegu.pdfIn PDF document text
    • http://lepamiruketujuf.epizy.com/free_sheet_music_piano_hymn_arrangements.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/simple_house_wiring_diagram_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/dugojibisinad.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_off0000ea76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA76 5404 bytes
SHA-256: de4d6c408368e3f81f2a99e909e76d0c35342df12129a89845f4f10022311329
font_01_sfnt_off0000fccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCC 10592 bytes
SHA-256: f6aa6db8bb109e37af4f082f837e11cbb5cad77df3fd399892f39450a3cfb395