Malicious PDF — malware analysis report

Static analysis result for SHA-256 82694b7e59ec8d20…

MALICIOUS

PDF

70.8 KB Created: 2021-03-03 16:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: aa1ecc8bcac983f9c4cbc000c6917dc5 SHA-1: 31a8245b3dbd66599fcef284c68e80b7c0d3aac5 SHA-256: 82694b7e59ec8d2098bea26476843200d3a5bdcb469c3590e21d0aa0435570be
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://druttle.ru/wix?keyword=digitech+vocalist+live+fx+manuale+italiano PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380070/normal_6031756402365.pdfIn PDF document text
    • http://wei-nmvc.com/sorcerer_spell_guide_dnd5smja.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/10694300527.pdfIn PDF document text
    • http://bigswinner.space/long_and_short_adjectives_exercisestj20u.pdfIn PDF document text
    • http://fakibukilab.22web.org/how_do_i_dispute_experian_credit_report.pdfIn PDF document text
    • http://8gusevshop.space/bollywood_movie_ashoka_full_hdyw97a.pdfIn PDF document text
    • http://vevufilusik.scienceontheweb.net/hindu_baby_girl_names_starting_with_ga_gi_gu_ge.pdfIn PDF document text
    • http://4escam-bot.online/allegory_definitiongvduh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wekujugom.epizy.com/51141601257.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/vabinogafex.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/52397881975.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/tuxudotufo.pdfIn PDF document text
    • http://vanowawupusizi.rf.gd/magento_frontend_certification_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/airmon-_ng_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/what_causes_small_bumps_on_hands.pdfIn PDF document text
    • http://mevalegija.rf.gd/colours_tv_channel.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_off0000d767.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD767 5328 bytes
SHA-256: c39ed66a99e17d9e05130f8f16b79c3fe040b5b4fe9daae07f2d48adf2ce36a9
font_01_sfnt_off0000e97d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE97D 11004 bytes
SHA-256: 0b1e587a1e64f1ed76b8d350950b9ea61def30d62aacdb08c1259144c5bf6f7d