Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2db07db4bead9af…

MALICIOUS

PDF

66.7 KB Created: 2021-02-12 01:19:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e59c7541e21653a01b8b7d4c1d3c04c3 SHA-1: d24718fe94a0417c3403d077625c7e1bdc507519 SHA-256: c2db07db4bead9af8d459103e24dfea04c208d6e03e2c891b4f67d095d2df7b9
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://leonvi.ru/123?utm_term=twin+peaks+elementary+phone+number PDF link annotation
    • https://cdn.sqhk.co/pizokifuxe/djfhgig/sellapp._me_make_money_selling_cool_stuff_inc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414864/normal_5fe3b6cdce0f9.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/gbjdO6y/vonenilosugepam.pdfIn PDF document text
    • https://cdn.sqhk.co/baxajufim/dXLgche/granny_chapter_two_escape_boat.pdfIn PDF document text
    • https://cdn.sqhk.co/lebudawojafi/avgcia2/xuvitomulifirosok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483610/normal_60004df6208b5.pdfIn PDF document text
    • https://cdn.sqhk.co/zativojor/jhggAsl/xmeye_user_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/kajurineg/ifghbiq/97553539754.pdfIn PDF document text
    • https://cdn.sqhk.co/dasewugiru/HgeVhMQ/62845493749.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/nncheEw/ps4_remote_play_app_chromebook.pdfIn PDF document text
    • https://cdn.sqhk.co/bufomofa/aahigii/pongo_abelii_habitat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4529281/normal_5fdc0ca8038a6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/popilo/lancashire_police_report_it.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/sarutunefajijobogo.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/jevewo.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_off0000c8c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C5 5404 bytes
SHA-256: a64e67828714f8a38641f42f1e8a1f4d0c999b4a0614eb48ac5cf553d19138f1
font_01_sfnt_off0000db10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB10 10208 bytes
SHA-256: 25c437854af3c808c5ff8c11f68401afd2a737b827c471d295187dfabbceb47a