Malicious PDF — malware analysis report

Static analysis result for SHA-256 80dfe3a9bdcdadf7…

MALICIOUS

PDF

62.0 KB Created: 2021-02-12 09:50:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 39c95b0cf275af850e05776517da4d23 SHA-1: 89ed6d82de5b16a58e7cf9f7d541502583c5f3c7 SHA-256: 80dfe3a9bdcdadf72b72cc7ce16ad7c2bb422127820b033c6762fc18e3be13e0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wix?keyword=ikaw+at+ako+lyrics+johnoy+danao PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388282/normal_5ffa8e7ce7bbd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426423/normal_5ff7cc919f594.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365627/normal_5fe142662fbd2.pdfIn PDF document text
    • http://normaa-id.com/gerador_codigos_de_xbox_live_goldhclrq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384142/normal_6009a1011f0ea.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/ethcUje/88235531360.pdfIn PDF document text
    • http://about-central.com/vlc_for_android_no_chromecast9n0m7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478133/normal_60045e4edb2dd.pdfIn PDF document text
    • http://rusherx.studio/9959669165qhh1i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493209/normal_5fd2ff115ade7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420589/normal_5fedb947855c0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480899/normal_5fc91296bb846.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/muvojugejoxip/jumping_ball_game.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/vermiform_appendix_appendicitis_histology.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/rhino_warframe_farming_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/describing_a_person_in_spanish_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/9862008320.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_off0000b942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB942 5296 bytes
SHA-256: b700b5c31bf2af5e8dd092f4418aa0df8cc429197c6ba3012be73ab9ef7adcc2
font_01_sfnt_off0000cb5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB5A 9420 bytes
SHA-256: dbcc1579be2ca16de4503493e90e51f159e33e33f434aa9d1729fbb0ad060aa9