Malicious PDF — malware analysis report

Static analysis result for SHA-256 4129e0bf994c5226…

MALICIOUS

PDF

74.7 KB Created: 2021-03-02 09:18:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0c726ec3c31a9420b969e4e7fbc077f9 SHA-1: 6c957555310f4de91f58757d4143d1809768aee9 SHA-256: 4129e0bf994c5226d61fa5c70c675263a56b3a8f22d150b27488cd81e5228b53
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://kuzutuzo.ru/wb?keyword=how%20to%20learn%20interior%20design%20skills PDF link annotation
    • https://cdn.sqhk.co/jebanufebejo/ifcrbDQ/demon_challenge_2_realm_grinder.pdfIn PDF document text
    • https://cdn.sqhk.co/raxuzuvuluf/djikjap/microsoft_outlook_2010_to_do_list.pdfIn PDF document text
    • https://cdn.sqhk.co/jebavimot/jXgcihf/futurama_worlds_of_tomorrow_dead.pdfIn PDF document text
    • https://cdn.sqhk.co/baxemazisod/hyDgigg/dressing_room_lords_mobile_vip.pdfIn PDF document text
    • http://tufofol.medianewsonline.com/how_to_calibrate_my_taylor_scale.pdfIn PDF document text
    • https://cdn.sqhk.co/kajipazuto/icibbgf/ufc_fight_night_payouts_waterson_vs_hill.pdfIn PDF document text
    • https://cdn.sqhk.co/vufisolepu/gei8gib/zurofesijinirotet.pdfIn PDF document text
    • https://cdn.sqhk.co/ritasuxa/ifhjEib/modern_furniture_style_names.pdfIn PDF document text
    • https://cdn.sqhk.co/jizuxadif/jgjbgcD/reapers_revenge_discount_tickets.pdfIn PDF document text
    • http://lusizekemuva.22web.org/what_to_do_if_your_android_tablet_wont_turn_on.pdfIn PDF document text
    • https://cdn.sqhk.co/pubisifibuj/fhCPrhh/mikolerepupabejajisugob.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/UlPgjja/the_rock_theme_song_ringtone_mp3_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xowitulodif.rf.gd/my_bonus_bonds_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/lazesej/mazilitumominukejowativ.pdfIn PDF document text
    • http://gexefafuli.rf.gd/tojejirawe.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/vurepatuberimibekugu.pdfIn PDF document text
    • http://sezusol.epizy.com/ielts_vocabulary_booster.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/speak_now_deluxe_edition.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_off0000e7d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D6 5112 bytes
SHA-256: f39ded03e3188e20440fa48dd8dff91ecabf773f528de76c181cf185a241ee0c
font_01_sfnt_off0000f957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF957 10692 bytes
SHA-256: 7729877fb62acfa4a18847907ea1dbb925c166b2f6e32f9fb1c5f1051ac7336a