Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd176555e915c3b…

MALICIOUS

PDF

60.8 KB Created: 2021-02-13 15:14:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3b8a6cf1e24a8301970fadbabc08ca02 SHA-1: a01ba35d3f5358931ed03067d14a26156488a044 SHA-256: bbd176555e915c3bba7874a5155b2a664fa3f1a01889789d0e0fa22295400f5f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/aws?utm_term=homophones+in+sentences+worksheets PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4377128/normal_5ffb843f3ef45.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387811/normal_6000b526a51ec.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/Qhipieu/moto_wheelie_net_free_games.pdfIn PDF document text
    • https://xudekumuf.weebly.com/uploads/1/3/2/6/132681038/7932408.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/DrH6iio/planetary_model_of_oxygen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412607/normal_5fdd3dc6c21d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449605/normal_5fe6a0515438a.pdfIn PDF document text
    • https://karifizamazo.weebly.com/uploads/1/3/1/3/131383674/86a38bc2b.pdfIn PDF document text
    • https://cdn.sqhk.co/vozevadijut/Gjbiijg/absolute_rc_flight_simulator_mod_apk_3._52.pdfIn PDF document text
    • https://roxadaxakisa.weebly.com/uploads/1/3/1/4/131437443/7157537.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/akg_n60nc_headphones_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/79406415629.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/23622938070.pdfIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/wibikogidugutukevej.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/yakult_honsha_annual_report_2018.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_off0000b43e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB43E 5048 bytes
SHA-256: 24328a93d5a694cb7294a2edac7290bdca2400646b0295c634fd2804285affe6
font_01_sfnt_off0000c552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC552 9668 bytes
SHA-256: 2074bea47a049db9d2745e8c53fb6926f1c69fb41ae2c2ee6cf9eef46da49347