Malicious PDF — malware analysis report

Static analysis result for SHA-256 d95b50c9623dbf82…

MALICIOUS

PDF

70.6 KB Created: 2021-03-02 05:38:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2c525894d3c976b5a0762375f6aa1024 SHA-1: 3d0001c7b6854f429d45cdee87a8e7b563f99557 SHA-256: d95b50c9623dbf82fc8ef17d82532f1304efc4cd334a6bee2e70e7ce4bdd7beb
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://gimoguvi.ru/wix?keyword=personal+contribution+statement+examples PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4489852/normal_5feb08f0b118e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405641/normal_5fda8c9249c6b.pdfIn PDF document text
    • https://cdn.sqhk.co/gexedamej/NhLXgfC/kujibukanatupunosovunafav.pdfIn PDF document text
    • https://cdn.sqhk.co/gixotagokezu/apBidgc/how_to_play_addiction_solitaire_online.pdfIn PDF document text
    • https://cdn.sqhk.co/tibidimewako/jacSbfG/rafafije.pdfIn PDF document text
    • https://cdn.sqhk.co/bagadogod/eogdiiO/85730868158.pdfIn PDF document text
    • http://uk-delfin.ru/11723629415v4rph.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/LLhiFuU/drive_ahead_sports_old_version.pdfIn PDF document text
    • http://jasetukuxazep.22web.org/17092036862.pdfIn PDF document text
    • https://cdn.sqhk.co/jevamivuvugi/hiecggb/88445256280.pdfIn PDF document text
    • http://naliputa.mywebcommunity.org/mujonaxexu.pdfIn PDF document text
    • https://cdn.sqhk.co/lenawemijixe/xRAigie/pogalomanibe.pdfIn PDF document text
    • https://cdn.sqhk.co/nadetajagupe/jxzgdnI/langrisser_mobile_redeem_code_android.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_off0000d849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD849 5288 bytes
SHA-256: e67b0a3e6e3549edd70c7aaba1823683a9fb1815b20f0332183de750d1300c90
font_01_sfnt_off0000ea2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2B 10428 bytes
SHA-256: b8f7eda5ed23897b08214e399ecad29adbd6470c52bbb776d9a2540dd143ce8d