Malicious PDF — malware analysis report

Static analysis result for SHA-256 aad656bd97f2e89a…

MALICIOUS

PDF

72.7 KB Created: 2021-03-04 03:36:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 252077e58bc68358b6fbec8697958be9 SHA-1: 301c00d1b82a79ec41b30ed2171899eebf935431 SHA-256: aad656bd97f2e89a3aa809b2775704e4c90ad7bf1570831af628e4cff41a2f02
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://xajibur.ru/wix?keyword=bissell+vacuum+cleaner+model+1240+manual PDF link annotation
    • http://erogan-oficial.site/45161766862ritcw.pdfIn PDF document text
    • http://kiwenalod.medianewsonline.com/que_es_la_extension_de_linea_de_productos.pdfIn PDF document text
    • http://itawegan.space/kawuwipolixemuzumede75l6o.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466172/normal_5fee73d28f06e.pdfIn PDF document text
    • http://nomokesus.sportsontheweb.net/does_ikea_sell_spare_screws.pdfIn PDF document text
    • http://lomidal.mygamesonline.org/how_to_become_a_reiki_master.pdfIn PDF document text
    • http://hellesypakk.online/como_hacer_el_ayuno_de_danielxslr1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488855/normal_5ffc050d98093.pdfIn PDF document text
    • http://jepisafidezegun.scienceontheweb.net/dexexetemitemodadaw.pdfIn PDF document text
    • http://pubggaming.online/tuvewenuwasogadivalesovou1mfp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469378/normal_602947c9be1a1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gitipezusev.rf.gd/sidazebeteveperifinikuse.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/can_you_eat_potatoes_on_the_wild_rose_cleanse.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/is_the_bounty_hunter_tracker_iv_waterproof.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/foxojisigodedatibapul.pdfIn PDF document text
    • http://pusebirenox.myartsonline.com/research_methodology_in_psychology_books.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/1091196507.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/10807348430.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/cast_screen_android_to_pc_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/cours_anglais_grammaire.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_off0000df05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF05 5608 bytes
SHA-256: d356028381f5f07d433083ce95c22104359bb6ef153913bf10fcb750ed96c030
font_01_sfnt_off0000f211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF211 10448 bytes
SHA-256: 13bc3492eb918c75d37f5eb97410ab2416676da8f34e37c36be961b6ec37257a

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