Malicious PDF — malware analysis report

Static analysis result for SHA-256 52227d9abfd321bc…

MALICIOUS

PDF

71.4 KB Created: 2021-02-28 02:58:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ed877e5d339aecab5aec00cf6cf66371 SHA-1: 6404565361310a9c8ff9b4aa633008cde58ee6f2 SHA-256: 52227d9abfd321bc5527c9b3be1afecfe3664765adbe131cfea5770cd3453c0e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/wix?keyword=holley+carb+setup PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4412778/normal_5fcd407440c75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489988/normal_6012307c734cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367642/normal_6027d9e0b3a31.pdfIn PDF document text
    • http://raxajifiwovoj.iblogger.org/26986283999.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419818/normal_6031761230bba.pdfIn PDF document text
    • http://tomesopinobiz.iblogger.org/the_pleasure_trap_book_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467577/normal_5ff87f79a5d87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471509/normal_601d58b73071d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504554/normal_602062b53332f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409628/normal_6016101f3ab64.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pozidijapepore.atwebpages.com/lights_out_game_solver.pdfIn PDF document text
    • http://porujikegen.epizy.com/audi_a6_service_manual_free_download.pdfIn PDF document text
    • http://fejusadifidexi.epizy.com/bazexomasejujuvetexumipox.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_off0000db2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB2A 5132 bytes
SHA-256: af41e6a6bba4037e212ada008890810aa670e24db3d9a9a3fd0a42961ae53b35
font_01_sfnt_off0000ecad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECAD 10704 bytes
SHA-256: 51fa85a0ea11080404a469b1267b1ffc05b946c45976db77579a63bc503eeaa4