Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7905d9231912de5…

MALICIOUS

PDF

71.5 KB Created: 2021-02-16 10:59:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3dc426f6cc0926451e60a38574adf5e6 SHA-1: c2d8802aa3bb0b10b2637ea016be034658e9e092 SHA-256: e7905d9231912de5168e3b6f5f8a92572757197d44234f45bd6101551b41f4f2
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://jacksth.ru/wb?keyword=how%20to%20reset%20schlage%20keypad%20code PDF link annotation
    • https://cdn.sqhk.co/butiluluvuk/jhbielb/unlimited_bowling_app.pdfIn PDF document text
    • http://formulamoney.top/crusher_farm_minecraft_bedrocktrxeq.pdfIn PDF document text
    • http://metinozub.iblogger.org/60047575041.pdfIn PDF document text
    • http://ag-management.space/microsoft_visio_2010_sequence_diagram_templateigkou.pdfIn PDF document text
    • https://cdn.sqhk.co/kekagate/ghgjhwm/84536641444.pdfIn PDF document text
    • http://rerubin.space/fifty_shades_freed_full_movie_downlo7tej8.pdfIn PDF document text
    • http://fopemotizikaj.iblogger.org/fasemozudamuzabox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wujuxupizosafe.rf.gd/analog_clock_time_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/27527046452.pdfIn PDF document text
    • http://rixupod.rf.gd/bumukevel.pdfIn PDF document text
    • http://jizofaludem.epizy.com/wigiwomenepapaduduza.pdfIn PDF document text
    • http://xokawetuvon.epizy.com/deleted_camera_icon_android.pdfIn PDF document text
    • http://lizolejixo.rf.gd/zojomuzex.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/sikusumimi.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/88478946079.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/confounding_variable_worksheet.pdfIn PDF document text
    • http://laxaguwen.epizy.com/the_alternate_picking_improver.pdfIn PDF document text
    • http://mifisabewup.epizy.com/ceo_delhi_form_6_status.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_off0000d92f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD92F 5556 bytes
SHA-256: a853518eee67a6011d1142925e39a419073f8eb3e0665b23caaba510034c91cc
font_01_sfnt_off0000ec25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC25 10820 bytes
SHA-256: 26cc9358747f33a92dd79a1c9e006546758a260eb01592e4af7529aca65161f6