Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6587655f701ce17…

MALICIOUS

PDF

69.9 KB Created: 2021-02-26 19:22:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f7bce14f1f679c4be9809b80f7b63e46 SHA-1: dc4b461294c1b185b30d445a9841e236c492ff4c SHA-256: f6587655f701ce170cc6d8de2e9bee7e17e03220471f067e82b2acfacec22bef
176 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://leonvi.ru/award?keyword=is+back+pay+pensionable PDF link annotation
    • https://cdn.sqhk.co/wixexozesila/EgjicYF/wedisigegevepanikiz.pdfIn PDF document text
    • https://cdn.sqhk.co/xavaxonad/cJafjcq/affirmation_definition_bible.pdfIn PDF document text
    • https://cdn.sqhk.co/jarixizotib/XKjiara/how_to_cake_it_pineapple_simple_syrup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372753/normal_6028f7761ecc9.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvinudubuno/9jiiaUh/cartoon_plush_toys.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480886/normal_5fecc65b142f2.pdfIn PDF document text
    • https://cdn.sqhk.co/rotexopapi/cfjihbR/fc_bayern_munich_ii_players.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368972/normal_5fe480ec917ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408004/normal_5feeefa088bff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382197/normal_5fc7bad268eec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403534/normal_5fd79a21480b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420767/normal_5fe98eafcae6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385424/normal_602f28f2cbb20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403540/normal_60071cdd2afef.pdfIn PDF document text
    • https://cdn.sqhk.co/guposidum/iW8hjKp/biwifi.pdfIn PDF document text
    • https://cdn.sqhk.co/lazuxorus/jdidlyl/xirevuxorowisaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420761/normal_6010678169d94.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://saxodanokijaj.atwebpages.com/79602462541.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_off0000d6db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DB 5076 bytes
SHA-256: 9ca1c7f5a0576bcf65d87c0d64b5f7bb82bca0f2b8a9d54d918d7369c22f8227
font_01_sfnt_off0000e83d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE83D 10136 bytes
SHA-256: 898a4f1e05a06c4aae4ae8353b0d232eb6e88db0e39a1da14d167e133e05f583