Malicious PDF — malware analysis report

Static analysis result for SHA-256 a467f155ab34cc80…

MALICIOUS

PDF

73.2 KB Created: 2021-02-27 00:10:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 40b600db127a2113aff0ce7e3e326243 SHA-1: 78047ffa16d998253f3ed56a23c4aecae8c465c7 SHA-256: a467f155ab34cc806cddfe0f2ff62db43d8b207d83ca21b563c2b83ecce4d603
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://xezojetit.ru/award?keyword=why+did+my+honeywell+fan+stopped+working PDF link annotation
    • https://cdn.sqhk.co/vivakawibaki/g26RZ9x/fafarivafisokepobafu.pdfIn PDF document text
    • http://igclienteam.com/aruba_7210_controller_software8qnv8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389805/normal_5fd6a19562d28.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/hegIdhc/carrie_underwood_new_song_drinking_alone_lyrics.pdfIn PDF document text
    • http://exemplpusj.com/detective_conan_the_phantom_of_baker_streetuibft.pdfIn PDF document text
    • https://cdn.sqhk.co/sesudegaruta/eLiiVji/diwotod.pdfIn PDF document text
    • http://nominasacra.ru/12546975119csymj.pdfIn PDF document text
    • https://cdn.sqhk.co/vonofuguniti/9PjcihB/aminogenesis_paranormal_efx.pdfIn PDF document text
    • https://cdn.sqhk.co/gowamojon/W1gdhcO/belfast_city_airport_car_parking_discount_code.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464707/normal_60069facc42bd.pdfIn PDF document text
    • https://cdn.sqhk.co/kufejeni/iheBiaT/subway_princess_runner_game_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379971/normal_603127290baa7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379849/normal_5ffbe8aa4fd78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372740/normal_600d460305dee.pdfIn PDF document text
    • http://hushseo.online/lost_and_found_at_school_book_activities8zrmh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE034 5724 bytes
SHA-256: f338d19c3b7e0d5e62c5cf2ef55587433fad1a4d06c06a2944d76ec95e119825
font_01_sfnt_off0000f3ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AC 10440 bytes
SHA-256: 093b04982296b47651906f42a78b5fabd83729ec21a92cc0028b77277cde2cc6