Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ca6a05fa50d4506…

MALICIOUS

PDF

73.9 KB Created: 2021-02-25 15:57:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a288e440b2249648e62056622ba7f2d3 SHA-1: 2dc1aefde1e942127f2195c033531486c0eafa81 SHA-256: 3ca6a05fa50d4506578f6866f3623f91769f5a9746f87137318a6421c0aaf082
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://seumenha.ru/award?keyword=me+after+you+film+streaming PDF link annotation
    • http://xuzerujagojagip.scienceontheweb.net/air_force_academy_map_colorado_springs.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/e1shgPa/lidorepanobiwuj.pdfIn PDF document text
    • https://cdn.sqhk.co/bokirebi/jfDjgjb/dragon_tamer_costume.pdfIn PDF document text
    • http://gagivukamuw.getenjoyment.net/79570129402.pdfIn PDF document text
    • https://cdn.sqhk.co/fumazuri/hjj3Sur/harris_health_jobs_login.pdfIn PDF document text
    • https://cdn.sqhk.co/fepexeguma/Kjdvcje/safobegituzenu.pdfIn PDF document text
    • https://cdn.sqhk.co/dexizajifu/hJgcifu/water_shooter_ios.pdfIn PDF document text
    • http://gunasog.iblogger.org/29783490046.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/0zghBoD/86732033042.pdfIn PDF document text
    • https://cdn.sqhk.co/namemedoxake/P7Ibegd/school_bus_management_system_project_documentation.pdfIn PDF document text
    • https://cdn.sqhk.co/satofurijob/giaic8b/simple_tiny_small_eq_kb.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/resumen_de_el_libro_la_ciencia_de_hacerse_rico.pdfIn PDF document text
    • https://cdn.sqhk.co/daborofus/rieEZge/app_where_i_can_design_my_own_room.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://femomebokubogom.epizy.com/axcrypt_1._x.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/juluwobinikegafon.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_off0000e466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE466 5196 bytes
SHA-256: b292152d43107f02f2b6f02fdbb347e25eed35159f9494dbf1ba6b2d74fb5072
font_01_sfnt_off0000f613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF613 10268 bytes
SHA-256: 04d62f2f28c4585e92d70c936246cdc2895c02ce4857f3d14ccf19ba2d86b17f