Malicious PDF — malware analysis report

Static analysis result for SHA-256 17ffa62b244bc029…

MALICIOUS

PDF

87.4 KB Created: 2021-02-16 00:08:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dbc8b1c2634c9ad95fa4b39ee287434a SHA-1: fcaba371c41db61e8a1e0fa1f6435a401764cc2c SHA-256: 17ffa62b244bc02943fd50e22a91da861068d14d24c21a731a1b9e81fcfeb2ee
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://baarspo.ru/123?utm_term=metaphysical+anatomy+evette+rose+free+pdf PDF link annotation
    • http://xojitufos.66ghz.com/michelin_guide_uk_2019_press_release.pdfIn PDF document text
    • https://cdn.sqhk.co/gupuwiwi/hihhcMa/simple_present_tense_listening_activities.pdfIn PDF document text
    • http://kitigaw.22web.org/kowegedaligibasap.pdfIn PDF document text
    • http://gonugotez.22web.org/billetera_movil_carnet_de_la_patria_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/ichbhj1/king_cobra_hd_photos_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dodufiruw/idjfhfq/biwanelapusofekanefino.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rakimeramut.epizy.com/ribavijaxukegarof.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/cara_file_ke_word.pdfIn PDF document text
    • https://s3.amazonaws.com/fexuror/full_size_t_shirt_template.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/xuxuwemibiwomimava.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/define_classified_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/4148121241.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/bodyguard_movie_salman_khan_free.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/all_football_apk_old_version.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/e_aadhar_with_mobile_number.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_off00011513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11513 5564 bytes
SHA-256: 78c4169de105481f21a24f15bd4b5a7f854e7d9d8ae24a374d87d5d105d7522f
font_01_sfnt_off000127ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127EE 12128 bytes
SHA-256: 9219851f2812696f48de4efa5a009b45b8e280e51cfe1b95719cd0e1f0e150d0