Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db9f0dbc0571849…

MALICIOUS

PDF

98.0 KB Created: 2021-02-24 20:21:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 62b421a8a0e0e65006b0aa0517fbecfe SHA-1: d1d3570adbe9c54462129e0956d793e5f8907bc3 SHA-256: 7db9f0dbc05718498c90ff7d4400ff7a1e0a2b2de4dab0ca22addabf490b2993
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/award?keyword=la+divina+comedia+quien+fue+el+autor PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4501789/normal_60082b510da9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383582/normal_600aa68001f1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446497/normal_5fdba7c850537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450354/normal_6030150b40221.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367004/normal_601b2d5e6d241.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390328/normal_5feff0bd9e91b.pdfIn PDF document text
    • http://tejovotemikodes.getenjoyment.net/how_to_say_phthalo_blue.pdfIn PDF document text
    • http://vijexibat.mywebcommunity.org/how_to_program_chamberlain_garage_door_opener_keypad.pdfIn PDF document text
    • http://lasns.fun/american_pastoral_philip_roth54bd0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405467/normal_600388ead3b38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420245/normal_602d6ba6ed11e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421056/normal_600edb608cbd3.pdfIn PDF document text
    • http://fefiwizam.sportsontheweb.net/molebexaruwizofese.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/vampire_diaries_originals_cast_names.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476148/normal_600282e4c0215.pdfIn PDF document text
    • http://zipubezexupoka.mywebcommunity.org/how_to_change_battery_on_jbl_flip_3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jisijuvod.myartsonline.com/old_school_bagel_tulsa_order_online.pdfIn PDF document text
    • http://pujumek.myartsonline.com/62300060765.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_off000142ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142AE 5116 bytes
SHA-256: 8887cc5a03014f534aa5fed8668bf2e0e9c0811f5df401f3eaa8ba8c6eec99f6
font_01_sfnt_off0001540b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1540B 11496 bytes
SHA-256: c448d7ed5e1e07821433f35ee9ef65e0338b3477ac63f0246600c02bad90dd65