Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecceec446c04e1b8…

MALICIOUS

PDF

75.6 KB Created: 2021-02-24 19:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ae3ea1ed3dd114d9b282892dfb6d497f SHA-1: 4f909204863819277cc96d0aff00a827e6f5a36b SHA-256: ecceec446c04e1b822b98ef7e974d941deccf756b92a7308f8e6e309cc3a2bc9
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/award?keyword=oracle+database+11.2.0.4+download+for+windows+64+bit PDF link annotation
    • https://cdn.sqhk.co/vawadawuleja/eRkU8jb/picaportes_para_puertas_interiores.pdfIn PDF document text
    • https://cdn.sqhk.co/figegixo/RXEifkV/nfl_top_100_all_time_team_running_backs.pdfIn PDF document text
    • http://jaxagogilexet.sportsontheweb.net/rabanuguxufel.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/mpmb_spell_sheet_generator.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/jwheeia/brooklyn_new_york_visitors_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/jarixizotib/heifwM3/pickme_driver_apk_7._2.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/22144518072.pdfIn PDF document text
    • https://cdn.sqhk.co/ninubisidire/h5au4ig/15926458506.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/0M31CIM/best_full_hd_wallpaper_2020.pdfIn PDF document text
    • http://powajaxib.medianewsonline.com/a_first_course_in_complex_analysis_with_applications_zill_solutions.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/xkYhfia/38918919033.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/yJBjamQ/25308869521.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/davolazupivowi/71657797246.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/bitizojamonapub.pdfIn PDF document text
    • http://wejufutaz.onlinewebshop.net/lotesedisifomoso.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_off0000e76e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76E 5872 bytes
SHA-256: 17e97768363fb44e96e1ff4c4f36008f58e65ee38faa1832c58694eaeec32639
font_01_sfnt_off0000fb8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB8E 11012 bytes
SHA-256: 29c6e1055b69530ab02465599ba3ab4e76587f37effbbf817782d2286a74d1f8