Malicious PDF — malware analysis report

Static analysis result for SHA-256 c10fb5d739b1057c…

MALICIOUS

PDF

63.8 KB Created: 2021-02-23 15:18:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6c41f15cbe3435eba0be3081f47f4d46 SHA-1: 970d21b7a6f1ddf1bebd47779aa8319633fe5a4c SHA-256: c10fb5d739b1057cad99a903a83b140cd9a39762a798144e5f424661241c0f83
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://bologen.ru/aws?utm_term=stanley+garage+door+services+traverse+city PDF link annotation
    • https://cdn.sqhk.co/rirexiwudag/hjig7hd/red_alert_we_make_events_cincinnati.pdfIn PDF document text
    • https://cdn.sqhk.co/vumorumuvogi/chdiajf/oceanhorn_2_pc_release.pdfIn PDF document text
    • https://cdn.sqhk.co/gukitane/Kgd9JA6/ftd_coupon_code_november_2020.pdfIn PDF document text
    • http://fezopezatoxu.22web.org/what_is_the_difference_between_visual_studio_2015_professional_and_enterprise.pdfIn PDF document text
    • http://nizozipup.22web.org/mibuguvozikodaz.pdfIn PDF document text
    • https://cdn.sqhk.co/waxolulum/ihVS4ii/diced_green_chiles_walmart.pdfIn PDF document text
    • http://novuzigekisev.iblogger.org/cemetery_man_full_movie.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/pidufozu/16565253930.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/obusforme_chair_replacement_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/wetakaromenivubatu.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/caa_membership_number_format.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/69699967246.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/firefox_64_bit_win_10.pdfIn PDF document text
    • http://kalotiwinilobiw.epizy.com/43853721996.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/ben_10_tamil_movie_full_movie.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_off0000bdd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDD0 5372 bytes
SHA-256: 50d68570beb747aaa72588900187e3302d1b13720219e0c2667a8613d18d418c
font_01_sfnt_off0000d02d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD02D 9892 bytes
SHA-256: 231b35b484c2ab2b7f027bd5215ffc059c069553863bcbaee78742abd568d581