Malicious PDF — malware analysis report

Static analysis result for SHA-256 63dbe91cea582aea…

MALICIOUS

PDF

67.9 KB Created: 2021-02-11 17:18:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 996e3c71c3d2414f28d6d086421a5d81 SHA-1: 1c17bf7830e110a55b461170ab09dc7ec0f6f817 SHA-256: 63dbe91cea582aea02f4a381f7fc52614606e872a89c5396bb3c82ce039abc5f
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/wix?keyword=does+a+2000+ford+f150+have+a+cabin+air+filter PDF link annotation
    • http://takipleskazan.org/authentic_happiness_by_martin_seligmanet2ec.pdfIn PDF document text
    • http://24goodstore.site/721497416363dvd1.pdfIn PDF document text
    • http://choosemadam.site/verb_to_be_present_and_past_worksheet6swi4.pdfIn PDF document text
    • http://mritzoliver.design/72147560715h4237.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375197/normal_5fda6a614b6af.pdfIn PDF document text
    • http://kuxufijum.iblogger.org/vivipexijuligiboxunuxe.pdfIn PDF document text
    • http://xonesasa.iblogger.org/hongkong_land_limited_annual_report.pdfIn PDF document text
    • http://medicalpracticementor.com/natural_color_gel_nail_polishzc266.pdfIn PDF document text
    • http://sayfelengs.space/refofopikitokepuxageyru53.pdfIn PDF document text
    • http://todurodadol.iblogger.org/twitter_software_for_windows_7.pdfIn PDF document text
    • http://idealica-ituficiale.website/mean_median_mode_range_worksheet2f9df.pdfIn PDF document text
    • https://cdn.sqhk.co/namaboniki/fcmjgji/39281749586.pdfIn PDF document text
    • http://mstmail.space/xenifumovifawudenosea6ycc.pdfIn PDF document text
    • http://alphabitx.com/exploding_box_templates_freej3j60.pdfIn PDF document text
    • http://prizinsta.info/les_connecteurs_logiques_en_anglais_et_leur_significationr1r5w.pdfIn PDF document text
    • https://cdn.sqhk.co/lomotutuwe/hjihjjf/16265829202.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cb32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB32 5760 bytes
SHA-256: 9253bd383422156b69b762c50d48658439baba0b0cbb01b7bdb763b6dc567b8f
font_01_sfnt_off0000dee0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE0 10412 bytes
SHA-256: 7b82675b0ebc042be9c9bdc5225238ccb41f12392a0cd5931c413982652bdaaa