Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aabc2ac622f8dc7…

MALICIOUS

PDF

74.1 KB Created: 2021-02-25 00:29:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5de1909ce764fdbe4503ed2011659c80 SHA-1: 286e4ac9711bbaec5dc48cbabdc3ee2c8693e31d SHA-256: 5aabc2ac622f8dc7fa9d00cdd221fcb73097e5fd4110404310dd78f3d98de4c3
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://druttle.ru/wb?keyword=why%20is%20my%20auto%20start/stop%20not%20working PDF link annotation
    • http://ukranews.site/most_difficult_brain_teasers_with_answersgh3d5.pdfIn PDF document text
    • http://frankiearvelo.com/tupafilugazugasadizupzrmuo.pdfIn PDF document text
    • https://cdn.sqhk.co/dasewugiru/hhjhjhz/small_wedding_cake_decorating_ideas.pdfIn PDF document text
    • http://goossyy.online/vijokedunujulegegutowote8sosa.pdfIn PDF document text
    • http://speak4pro.com/5614832292vptit.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/papuja/spring_boot_jdbctemplate_insert_example.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/amber_fort_information_in_marathi_wikipedia.pdfIn PDF document text
    • http://kewivifonawati.epizy.com/10846169924.pdfIn PDF document text
    • http://guvamimifufirar.rf.gd/japan_guide_tokyo_side_trips.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/naloxebu.pdfIn PDF document text
    • http://dapizodipe.myartsonline.com/9931856626.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/english_to_chichewa_dictionary_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/22439683533.pdfIn PDF document text
    • http://tuwutexo.onlinewebshop.net/garmin_approach_s60_premium_gps_golf_watch_with_black_leather_band.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/bed_sheets_for_sale_online.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_off0000e6a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A1 5508 bytes
SHA-256: f73ea6c6518082ad0772bf19bf2812ba242929cfa6c05c83d9705e3bad110b6d
font_01_sfnt_off0000f95b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF95B 10080 bytes
SHA-256: a5e7ced81339379aa7343c61fc359ed9d185cecd26bda4a3b7cb15bc857cdb44