Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7908ea8402bfbe2…

MALICIOUS

PDF

65.9 KB Created: 2021-02-05 21:39:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 78e899bfdbf4e31444615c4266f2c167 SHA-1: 845ccbfc0137604cd0011cfe031851d9f8899367 SHA-256: d7908ea8402bfbe25d37cf8eff8772847f04ba93ce9f8d7af3ebd5a8344e1951
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wb?keyword=ahirani%20new%20song%20free PDF link annotation
    • https://cdn.sqhk.co/xunijejozi/Vij0ggR/cat_runny_eyes_and_sneezing.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/Jgjhggi/pujikemabagotinefe.pdfIn PDF document text
    • http://gagelepapu.22web.org/60910508148.pdfIn PDF document text
    • https://cdn.sqhk.co/xagunetoxa/hcMeibj/gewabikepogibopenubesag.pdfIn PDF document text
    • https://cdn.sqhk.co/daxozazon/eibhdjg/hack_sky_fighter_2_revolution.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/U7hazIT/25878212885.pdfIn PDF document text
    • https://cdn.sqhk.co/zagakobafot/YUyhhg3/gifajulitoluzob.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuvedije/2Xlu6jd/wirojuvotepa.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/vjf4ggK/low_poly_3d_sphere_puzzle_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/haz33jf/mystery_hidden_objects.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488332/normal_5fce393f4a1d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495525/normal_6016ed8b79992.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zijomofi.epizy.com/nibidimabixubowerakoton.pdfIn PDF document text
    • http://repazof.rf.gd/anfotericina_b_desoxicolato.pdfIn PDF document text
    • http://maguvotu.rf.gd/verolozovugumakuj.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_off0000c607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC607 5076 bytes
SHA-256: 1503342e1893f895b4ca5564fad667e5003a57a6cddfa127fe1d1fbfcaf20725
font_01_sfnt_off0000d75d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75D 10468 bytes
SHA-256: 85ae424b703de3b4b041c8be8dfdbffed7db93a408979ebd57870983dc25c6fd