Malicious PDF — malware analysis report

Static analysis result for SHA-256 489cb6df45b83ce4…

MALICIOUS

PDF

76.6 KB Created: 2021-03-01 17:51:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4ad7ccf26f9ae242a75dcaa515c27c6b SHA-1: 61f5c0501debd3a219735a27346b532173737575 SHA-256: 489cb6df45b83ce4f2dc64ec45e4f9023dfe37751c7ceff6a10ffd4370bbd450
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://xajibur.ru/award?keyword=what+batteries+does+the+ingenuity+convertme+swing+take PDF link annotation
    • http://jedomagisuw.getenjoyment.net/66832984730.pdfIn PDF document text
    • https://cdn.sqhk.co/livefivepa/hejgNge/blundstone_waterproof_boots_mens.pdfIn PDF document text
    • https://cdn.sqhk.co/bokirebi/Vjbgd7F/zesani.pdfIn PDF document text
    • http://gojavodevagajuw.mygamesonline.org/fraction_decimal_percent_table_worksheet.pdfIn PDF document text
    • http://veselutut.mywebcommunity.org/wakamosaxamugikamafi.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/ahciaib/ahly_net_points.pdfIn PDF document text
    • http://bulakirip.getenjoyment.net/70805051356.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pidodexogejax.myartsonline.com/lofeluxokevopijikiru.pdfIn PDF document text
    • http://jabodegodonirad.atwebpages.com/doteloka.pdfIn PDF document text
    • http://jumepenitujox.atwebpages.com/sukur.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/adobe_premiere_pro_cs4__after_effects_cs4_serial_number.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/tmux_cheat_sheet_mac_os.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/45667908239.pdfIn PDF document text
    • https://s3.amazonaws.com/kobivimelelo/begibetezaloxizezojoluxak.pdfIn PDF document text
    • http://kewetanetoza.atwebpages.com/kakudepuruxag.pdfIn PDF document text
    • http://kipejefanowisu.atwebpages.com/gobodex.pdfIn PDF document text
    • http://tavamikilav.myartsonline.com/tipinozafa.pdfIn PDF document text
    • http://letutemoxeluz.onlinewebshop.net/how_to_play_ukulele_a_complete_guide_for_beginners.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_off0000ec1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC1D 5792 bytes
SHA-256: af1130f29271a12da9520bce11e5a4d36d31b2d90dc8a311bf3c546634f88757
font_01_sfnt_off0000ffc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC9 10452 bytes
SHA-256: ceaaae4175f539ad8dd87e31317f2af798f4e5d3307a14981c52b26e6a3154ae