Malicious PDF — malware analysis report

Static analysis result for SHA-256 be292dc11cf8548a…

MALICIOUS

PDF

73.1 KB Created: 2021-03-05 10:50:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c653311b6e9b1318684a19c281229b0c SHA-1: 4ce104dc733ab48f440a0a7df7176fcd82093d11 SHA-256: be292dc11cf8548a68564c6d75528157241409ddb856ee8216fcfe7586d6f6e7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/wix?keyword=blood+typing+simulation+lab+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4468289/normal_6032af6d27dfe.pdfIn PDF document text
    • http://soxiwokix.iblogger.org/digital_manufacturing_for_dummies.pdfIn PDF document text
    • https://cdn.sqhk.co/sifalavuxozo/aBlljd3/86675450963.pdfIn PDF document text
    • https://cdn.sqhk.co/nezuxada/hBZwdjh/crafty_crab_towson_phone_number.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485943/normal_602d0ae4da7f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446275/normal_5fd1b8404a6a8.pdfIn PDF document text
    • https://cdn.sqhk.co/lepapina/lJOjihf/vusiwuporiresaxuka.pdfIn PDF document text
    • http://taxevidel.medianewsonline.com/ridip.pdfIn PDF document text
    • https://cdn.sqhk.co/savujegu/d9cXRGn/riliga.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456166/normal_600737ae41bf5.pdfIn PDF document text
    • https://cdn.sqhk.co/bijozugetav/jjghb64/29109109328.pdfIn PDF document text
    • http://sitizinudex.getenjoyment.net/18802894216.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/tabel_99_asmaul_husna_beserta_artinya_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/66353986072.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/fasuditorijebo.pdfIn PDF document text
    • http://nutonujisebife.epizy.com/78179317178.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/buy_adobe_acrobat_x_standard.pdfIn PDF document text
    • http://zalowakudedakov.rf.gd/narosafesila.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/baseball_star_mod_apk_unlimited_money.pdfIn PDF document text
    • http://wetedezowob.rf.gd/gerojinibalirodarus.pdfIn PDF document text
    • http://mevonaku.rf.gd/401199162.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD727 1648 bytes
SHA-256: 8b2589bd24cf932eb6915e82ae8a3be1af6f31f2eb3de5ec03fd8098017f63f7
font_01_sfnt_off0000df4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4E 5660 bytes
SHA-256: e4adb67b31397010232cbd5221eb98a3045ef9b48cbedd20dadd3d373160beb3
font_02_sfnt_off0000f29b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29B 10620 bytes
SHA-256: 9e770e019271df9c3f18e4c35f64d918d5c793e996c6b79ffc192ed712f7e6c8

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