Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e47d289869b13a…

MALICIOUS

PDF

64.8 KB Created: 2021-02-05 00:39:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7789520d6e5246df5d95a7d888fa2d5b SHA-1: 97705ee561f970f5110b644f0db259541de679f2 SHA-256: 87e47d289869b13a9a7dd3d447e6da02090dc1846df871c96bda7540eb7ba962
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wb?keyword=ashish%20patil%20songs%20list PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369146/normal_600d8a5586a6c.pdfIn PDF document text
    • http://instacopyrighthelpteam.com/physics_world_magazine_subscriptionbz8mj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367013/normal_5fccce3263951.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/ifaW1ja/car_runs_over_protesters_seattle_video.pdfIn PDF document text
    • https://cdn.sqhk.co/rabuzopat/jhk0Xgj/xepoposalekirenexezafa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367950/normal_5fca56a68edaa.pdfIn PDF document text
    • http://sale20.site/fairbairn_knife_fighting_manualkus2d.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/extYDp1/ledadurudove.pdfIn PDF document text
    • https://cdn.sqhk.co/bevurokakug/igL59K9/vewarubozegamij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407781/normal_600b3a4b79e3c.pdfIn PDF document text
    • https://cdn.sqhk.co/nukunudakiju/eRjitG3/shark_ionflex_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/pobopuwubox/iZFA5LX/49873548728.pdfIn PDF document text
    • https://cdn.sqhk.co/zodozane/bhgibHq/father_sons_clothing_contact_number.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451227/normal_6008626e26761.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/paxunu/simplified_chinese_alphabet.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_off0000bf5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF5A 4976 bytes
SHA-256: 86a3826da5a99665e3c0608661183cc0144ceeb04102ef3db64727877c1918ff
font_01_sfnt_off0000d046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD046 10816 bytes
SHA-256: 7ad0cafa4e4c17947060ef7b183844f045d76a10a35f6ac2219331161f1617f4