Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cb652b2066b7cae…

MALICIOUS

PDF

69.0 KB Created: 2021-02-23 20:43:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ee5eab85da339b27989bd1df77bd5953 SHA-1: 6e5806248ec1923add7e379631d2091e10bd9941 SHA-256: 5cb652b2066b7cae45a8be611595408c37a89e4501770b5f5c6f6f785ee802b3
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://baarspo.ru/wix?keyword=unit+12+vocabulary+workshop+level+b+answers PDF link annotation
    • http://exemplpusj.com/php_form_action_submit_button0lux7.pdfIn PDF document text
    • http://ketosimple.online/2928127233df57r.pdfIn PDF document text
    • http://vasamekekegu.iblogger.org/admin_template_php_mysql.pdfIn PDF document text
    • http://fb-ig-copyright.com/chicken_crossing_the_road_giftowyl.pdfIn PDF document text
    • http://nubolats.xyz/100k_ohm_ntc_3950_datasheety3rqn.pdfIn PDF document text
    • http://nizuvifoko.iblogger.org/mukewasafesasovedatagoror.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409093/normal_5fec360946f3a.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/livivuvuwugeb/24599029887.pdfIn PDF document text
    • http://soxalisaxofaba.epizy.com/89410933037.pdfIn PDF document text
    • http://fapizof.rf.gd/97873225696.pdfIn PDF document text
    • http://fituxulilofe.epizy.com/abercrombie_and_fitch_uk_size_guide.pdfIn PDF document text
    • http://vavazewesepato.epizy.com/passport_renewal_form_for_minors_in_usa.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/67906292863.pdfIn PDF document text
    • http://vivazuriperulus.epizy.com/sipikik.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/xuletaleliwosiwawusupupol.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/ratudekipafusanujuso.pdfIn PDF document text
    • http://wodasekewu.epizy.com/58929206361.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_off0000d19d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD19D 5656 bytes
SHA-256: 2fbd6827ce796226409ba8712267188e6b4ee92df390e8bcb284d32fbd040ad5
font_01_sfnt_off0000e4fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FA 9992 bytes
SHA-256: 6fe63ee89aa77cbe5663f67575a735113ab67270c94330b0f8663ca3e47dd6c3