Malicious PDF — malware analysis report

Static analysis result for SHA-256 468b0ce5f1810c7c…

MALICIOUS

PDF

71.5 KB Created: 2021-02-15 13:27:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 13246fc41c0ad3e8e620d6c9a43b9884 SHA-1: cf3fc9e07d8c0addc8c7747a59439e5079b5a5c1 SHA-256: 468b0ce5f1810c7cbd2210ac29879b8c4ead6d94c0d194162efa15c7cc57d855
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/wix?keyword=flight+airplane+game+unblocked PDF link annotation
    • http://aycotoro7.xyz/dupimupimonuwesabafamaitpu1.pdfIn PDF document text
    • https://wosepujejos.weebly.com/uploads/1/3/4/6/134649517/1259806.pdfIn PDF document text
    • http://xopuwigevifuk.iblogger.org/pemekibojozu.pdfIn PDF document text
    • http://prosale.company/hell_inc._imp_theme_park_tycoon_2ezyna.pdfIn PDF document text
    • http://copyrightmediahelp.com/xowiganesere74hxu.pdfIn PDF document text
    • http://xezaxalizedov.22web.org/90116283844.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/xezujuxoz/bollywood_latest_movie_hd_print.pdfIn PDF document text
    • http://vadufitewaseru.epizy.com/kaguxoguruwemitapimufaz.pdfIn PDF document text
    • https://s3.amazonaws.com/gekojulog/keninilojo.pdfIn PDF document text
    • http://petetilazuji.epizy.com/wood_carving_merit_badge_worksheet_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/fuvowana.pdfIn PDF document text
    • http://sezajebufixi.epizy.com/86957323243.pdfIn PDF document text
    • http://zugukasamudin.epizy.com/monsters_inc_scream_canister_phone_charger.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/annexure_f_of_passport_application_form.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_off0000d91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91A 5468 bytes
SHA-256: 3a705530b7db3e4ea1922c11c1d80e24ed47e292c535bd30529b2240db315837
font_01_sfnt_off0000eb85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB85 10396 bytes
SHA-256: 5f5a1166fd305f67371ffe2590a74d4ea35cccdf54a046afbeeb1f0caaf6967c