Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c53020ebd5540e4…

MALICIOUS

PDF

71.5 KB Created: 2021-02-23 21:24:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cec6350e4cac5ac3a00badd98719c791 SHA-1: 7619b944dd3327a84b720003ab433fdce1619c4a SHA-256: 0c53020ebd5540e415e4439096f6a896e82870716c87c4615af061f305cd59b6
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=santo+cristo+de+la+grita PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4461525/normal_601ffdafb343d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421768/normal_5fcf224f23d2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371536/normal_600ebc857fd45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388173/normal_602dcc143b034.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493221/normal_600a6c89dcddb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386087/normal_5fd6e602e9d2a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469101/normal_5ff6af3b3fe23.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413475/normal_5fffc8c956425.pdfIn PDF document text
    • https://cdn.sqhk.co/miburixegapu/5givgj7/gezujoparotazipomuta.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375195/normal_6009d2f561f8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393503/normal_5ff97308b8310.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/ggtOgju/pokemon_home_mystery_gift.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368768/normal_5ff7649f8674f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420906/normal_5fd2659a64c13.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378404/normal_5ffb57fa27f37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406516/normal_5fdb27f87a1f6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478438/normal_5fcc96f839c39.pdfIn PDF document text
    • https://cdn.sqhk.co/sosobigawe/UjcGibh/savannah_ga_commute.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402956/normal_5fdcff8b9b887.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486199/normal_5fedf0e49e2fe.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_off0000d778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD778 5208 bytes
SHA-256: 9657966fdddf2a4648cc02dd9b61e13d3b248642d644dc8498614589333b81e0
font_01_sfnt_off0000e936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE936 11876 bytes
SHA-256: 85a5ebf4e0e75b320b8c01e6753b7fa0ed7090fd9191ab801a020f314506a742

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