Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be9d659a95aa7c2…

MALICIOUS

PDF

78.5 KB Created: 2021-02-19 11:08:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c4be820383b921980ee5c6520780afe2 SHA-1: 7c3fe54bfe1acb0fbd95cfaf4532a7f71c667651 SHA-256: 5be9d659a95aa7c24219182baa52a557dc78a02fd6fecfd51824d16e4d58e1de
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wb?keyword=asus%20z97%20deluxe%20usb%203.1%20drivers PDF link annotation
    • https://xigolomo.weebly.com/uploads/1/3/4/4/134483438/votowerusitosupowi.pdfIn PDF document text
    • https://segakimorepej.weebly.com/uploads/1/3/0/7/130738797/7719281.pdfIn PDF document text
    • https://cdn.sqhk.co/bobimugura/OgiCGgg/bird_sanctuary_westfield_nj.pdfIn PDF document text
    • https://cdn.sqhk.co/kurotevu/jfmOyha/prudential_cycle_ride_2019_road_closures.pdfIn PDF document text
    • https://cdn.sqhk.co/tosilura/CZpgdXq/zasegarawuludovokagikikop.pdfIn PDF document text
    • http://1fps.ru/41769721494jljzz.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/fghgfgd/juroliwetaxolo.pdfIn PDF document text
    • https://cdn.sqhk.co/fularulojoze/d4igDha/japofuwobewazes.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/ljjjdif/wafojabumanid.pdfIn PDF document text
    • https://rodamopuxex.weebly.com/uploads/1/3/4/3/134354351/4701831.pdfIn PDF document text
    • https://cdn.sqhk.co/mawedabe/hcigigH/bein_sports_max_live_stream_free.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/fomudebipefasu/kgf_chapter_2_trailer_video.pdfIn PDF document text
    • https://s3.amazonaws.com/wujixus/4846819003.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/viral_booster_apk.pdfIn PDF document text
    • http://dapijapixezido.rf.gd/hockey_jersey_template_illustrator.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_off0000f45a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF45A 5400 bytes
SHA-256: 54ddc33a6a5060a37ee2f5da2e5f8babbd4994d44f0d379586766e8748b89ac8
font_01_sfnt_off000106db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106DB 11672 bytes
SHA-256: da8d2927a2e496e4244b7f62280069ea90072f3cdabfce6c3f54e8b859546459