Malicious PDF — malware analysis report

Static analysis result for SHA-256 faac424a896da31d…

MALICIOUS

PDF

61.3 KB Created: 2021-02-11 23:30:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0c466a8de44bf9db131a38af3787f890 SHA-1: fa7efb2214a901f02edf7f28f0d57bc40a316055 SHA-256: faac424a896da31db6a6dec557e3e7a1d862459571f37ddc71c70263af9b7745
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/123?utm_term=nashville+school+of+the+arts+alumni PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4463792/normal_601aff23cafe7.pdfIn PDF document text
    • http://sarepoxorak.22web.org/67733812260.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467038/normal_5fc9453db5835.pdfIn PDF document text
    • https://femovoba.weebly.com/uploads/1/3/0/7/130775826/seluj.pdfIn PDF document text
    • http://dukofinezamidol.22web.org/the_articles_of_confederation_challenges_worksheet_answers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386087/normal_5ff65d3dc6b9e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377379/normal_5fc9996a66016.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/kufazete/camscanner_pro_apk_xda.pdfIn PDF document text
    • http://fowasabitafal.epizy.com/wedding_invitation_templates_freepik.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/quotation_template_excel_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/gonakivuwuj.pdfIn PDF document text
    • http://rejefuwozumij.rf.gd/83212216227.pdfIn PDF document text
    • http://roworozirad.epizy.com/39222691529.pdfIn PDF document text
    • http://wagibederujejo.rf.gd/meilleur_anti_spyware_android_gratuit.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/sufebanivogal.pdfIn PDF document text
    • http://wopaxigaromuf.epizy.com/papotizemu.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/bharatanatyam_hand_mudras.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/rebebelilebuwu.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_off0000b619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB619 5148 bytes
SHA-256: c38ecb67bb210f781841878ca4872e72bad38c253d561952d9ebee3269437def
font_01_sfnt_off0000c781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC781 9620 bytes
SHA-256: 784910e3bc9b9c4727b4692bb4bc2f95b5461bda42a61188abc1326d57ff46ac

Open this report in the interactive analyzer, or submit your own file for analysis.