Malicious PDF — malware analysis report

Static analysis result for SHA-256 e60462c2c42f66c4…

MALICIOUS

PDF

75.9 KB Created: 2021-02-05 15:39:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ec186b9559de86aa28a7366b696f991c SHA-1: 8f765cb05c3d9310242b3cbf89b1aded870f02dd SHA-256: e60462c2c42f66c4cc4543410349868281fc2a5317ce202523f17c449ca5ee6a
196 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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/wb?keyword=writing%20chemical%20equations%20chemistry%20worksheet PDF link annotation
    • https://napolapivu.weebly.com/uploads/1/3/5/3/135303388/wogegedifeb.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/aihpVkE/alone_status_for_whatsapp_video_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/Jjide99/grim_quest_old_school_rpg_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/salefudodid/Fjjdibj/splashlearn_fraction_games.pdfIn PDF document text
    • https://cdn.sqhk.co/gigemuji/duhcgf6/cable_selection_formula_for_electrical_load.pdfIn PDF document text
    • https://titepusigob.weebly.com/uploads/1/3/5/3/135392267/d8d16.pdfIn PDF document text
    • https://jorojiwelipevo.weebly.com/uploads/1/3/5/3/135393556/c18aac19cc160a.pdfIn PDF document text
    • https://cdn.sqhk.co/nupumusu/EiiqOhg/treasure_hunters_james_patterson_review.pdfIn PDF document text
    • https://cdn.sqhk.co/fidapulano/idBhfji/steven_universe_warp.pdfIn PDF document text
    • https://mezepobavufu.weebly.com/uploads/1/3/4/7/134717124/bixam_parakinusitot_lixebipatig_sikubaza.pdfIn PDF document text
    • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/zudopes.pdfIn PDF document text
    • https://cdn.sqhk.co/gitovera/f7pBhbL/pix_color_color_by_number_pixel_art_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/fEjijg5/ratebigunovevapikedama.pdfIn PDF document text
    • https://cdn.sqhk.co/dewozoju/iiL1giA/96670764634.pdfIn PDF document text
    • https://cdn.sqhk.co/mevexobuzur/jEijaii/word_board_ideas.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/jb9ja93/68624885990.pdfIn PDF document text
    • https://juvifopabolosat.weebly.com/uploads/1/3/5/3/135313118/3668374.pdfIn PDF document text
    • https://cdn.sqhk.co/jedugifaxido/fij8Nal/death_racing_2020_apk.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_off0000eb4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4C 5612 bytes
SHA-256: 4f71d117622de05e5e307dd23290a8dfdcba7f92ddedc2e27f50fde97438f1db
font_01_sfnt_off0000fe58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE58 10496 bytes
SHA-256: 8a65368f816d6fafb442cdcd2d91ae275464d2ab6b10f82f06915b9717ee585f

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