Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e564b57e578dd80…

MALICIOUS

PDF

65.6 KB Created: 2021-02-16 06:05:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5a9ed2de9c5050fb9519151bad8eb580 SHA-1: 11fa8df9c3c5219a10d90f30223136821e698aa6 SHA-256: 1e564b57e578dd800c888cb6313ef0f72655bbad6328e6d3f0d2427e98b35c69
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=jane+phillips+elementary+bartlesville+ok PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4469116/normal_60045dd4b8d6c.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/xijuxosisomuna/73624215244.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/beat_saber_para_android.pdfIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/89438245522.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/kogodudoras.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/vipefavivozuzirozanusupat.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/forizoxidenexaxanukesituk.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/21438585989.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/gaubert_madrigal_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/87520168185.pdfIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/wow_herbalism_guide_alliance.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/69527433016.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/rotexadigawenim.pdfIn PDF document text
    • http://mibavened.rf.gd/2148109832.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_off0000c4be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4BE 5412 bytes
SHA-256: 95a83d15dc5c4977fbecd524fc0328c50c4c60fdecf2abc45fd4d3617c324bfa
font_01_sfnt_off0000d706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD706 10088 bytes
SHA-256: 0ce311dc83a19d95cf73a5a99f6e91c703ee3e8e00b873cfc06506d859bde562

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