Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d0e4747b77be148…

MALICIOUS

PDF

72.7 KB Created: 2021-02-27 16:39:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a8628e73b669dc0a5eef0b5ca41931ca SHA-1: 8035295a82665b7fa8fa5f77ffc2fe87ec4b9814 SHA-256: 5d0e4747b77be14898a798ea9c865637b5c9dd20afe911c30f20812f3f202324
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://vilenefex.ru/wix?keyword=avg+manual+update+file+download PDF link annotation
    • http://xadixul.66ghz.com/58404711904.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490720/normal_6025fc0df3eb4.pdfIn PDF document text
    • http://pozerebidilu.iblogger.org/bloons_td_6_apk_free_original.pdfIn PDF document text
    • https://cdn.sqhk.co/xawobovuji/gaggjgq/idle_knights_mobirix.pdfIn PDF document text
    • https://cdn.sqhk.co/mowuseparap/Zjgcmih/swing_rider_game_online.pdfIn PDF document text
    • https://cdn.sqhk.co/konarolikomu/d5ij5Km/sniper_counter_attack_game.pdfIn PDF document text
    • http://lejebodaz.22web.org/formato_para_mantenimiento_preventivo_de_tableros_electricos.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/gfjdMjg/mupofewapatisaj.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/masevewi/formal_letter_writing_format_cbse_class_12.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/fate_grand_order_reroll_guide_reddit.pdfIn PDF document text
    • http://kopinakitiwodad.rf.gd/96292683396.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/android_get_assets_file_path.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/19607687630.pdfIn PDF document text
    • http://batefagut.epizy.com/appearance_sentence_formation.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/91633633172.pdfIn PDF document text
    • https://s3.amazonaws.com/kafises/pikafes.pdfIn PDF document text
    • http://pixokux.rf.gd/network_study_guide_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/backend_template_bootstrap_free.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_off0000dffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFFE 5228 bytes
SHA-256: f1e00c63dfae9bce02efa7b740abeb762c687992a93f7d15def7b66ed51a1dd6
font_01_sfnt_off0000f1d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D7 10704 bytes
SHA-256: 42834c4875f5e74f3a535a6ec411bb0a79b3c018f1ef862a8e9e3752a0584f3d