Malicious PDF — malware analysis report

Static analysis result for SHA-256 06e16ad82a4d5aa4…

MALICIOUS

PDF

70.9 KB Created: 2021-02-12 05:28:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a943629219be1a846dcab2ea721762f2 SHA-1: 627e18b2e31e9f56ccbd2cd100f49ac3111c35ed SHA-256: 06e16ad82a4d5aa47dbb4bf6f07472a8bece59f7f6fedc3501fcbe8350d765ec
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/wix?keyword=papa%2527s+freezeria+unblocked+hooda+math PDF link annotation
    • http://hangookoil.ru/manual_para_entender_el_juicio_de_amparovmsx5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378619/normal_5fdbd51d5ccc0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366050/normal_5feafdf19e365.pdfIn PDF document text
    • http://freud.icu/achi_baatein_in_hindihmbu3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4506200/normal_5fe3b1f5b96e1.pdfIn PDF document text
    • https://cdn.sqhk.co/mimofeto/bifbjha/iihf_world_championships_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/numorolele/sieV3EM/sweet_potato_green_under_skin.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/dgOhgtz/bajuniboxiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420039/normal_5fd3a64048d6a.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuputid/XunNjcW/kalefufidejewopeni.pdfIn PDF document text
    • https://cdn.sqhk.co/dewozoju/3Q1Jpjj/49673795586.pdfIn PDF document text
    • http://razvivatel.blog/download_papas_cupcakeria48fiz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491164/normal_5fe511b2a493b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481154/normal_5fe2c2ef6969a.pdfIn PDF document text
    • https://cdn.sqhk.co/zupitefa/cjlU7hb/83696389933.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405687/normal_6007e54925d1b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413843/normal_5ff3ac6291a61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379614/normal_5fd7a5fe4fa95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461525/normal_60112186b922a.pdfIn PDF document text
    • https://cdn.sqhk.co/riwifesineji/NficmZ1/76988750946.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_off0000d6ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6EF 5684 bytes
SHA-256: 9a378638e91215d5a0e150d57974a5f4486f194132501c036727a60cdaebd462
font_01_sfnt_off0000ea27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA27 10544 bytes
SHA-256: 6f89691c29ca78544415c7beb2cf4cfedc9258428a5c49fb6156244e6001b7fc

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