Malicious PDF — malware analysis report

Static analysis result for SHA-256 629c1acedb1fa8b9…

MALICIOUS

PDF

77.4 KB Created: 2021-02-23 16:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 69495b399d281a83b3d6cef7ec18d00b SHA-1: 7826ca43fbb1d046ab9c412d730ad2e6a1cd0699 SHA-256: 629c1acedb1fa8b974ec9209cb472e88638669a6b8babba2bfc0f753859bc2d3
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://baarspo.ru/wix?keyword=nfl+waiver+wire+cbs PDF link annotation
    • http://apkweb.net/3279552113069q6k.pdfIn PDF document text
    • https://cdn.sqhk.co/sezogitov/gghaijm/31270733261.pdfIn PDF document text
    • http://uscarins.info/anuraga_karikkin_vellam_all_songs0x91o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409246/normal_6015bba3b1394.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380214/normal_5fd88e664fbfe.pdfIn PDF document text
    • http://mainsale.pro/converting_fractions_decimals_and_percents_worksheetsrtu76.pdfIn PDF document text
    • http://mamontov-net.cc/132623635512j3uc.pdfIn PDF document text
    • http://hytri.com/98600724200reu7m.pdfIn PDF document text
    • https://cdn.sqhk.co/kumotuxijufu/ijxhihe/titan_2048_interface_artnet_to_dmx.pdfIn PDF document text
    • http://form-lnstagramcopyrightservices.com/ffbe_jp_damage_spreadsheet2pe6v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404753/normal_5fce47df9e254.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/widghic/vikings_ivar_wife_actress.pdfIn PDF document text
    • https://cdn.sqhk.co/wetilusogaki/jjhQd8A/nba2k20_locker_codes_ps4.pdfIn PDF document text
    • http://infonewstravel.com/mini_balenciaga_bag_dupe873ag.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/dudurat/mopezepevafirumekam.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/memorandum_template_air_force.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/best_manual_cars_2018_usa.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/philip_morris_pakistan_annual_report_2017.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_off0000f44c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44C 5136 bytes
SHA-256: f815da4dc2762c572cd88c00094e0df7b6e0199e5394ffac89b14acdc70a422d
font_01_sfnt_off000105f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F7 10184 bytes
SHA-256: 2c65d98ec94d27fc4c999bc25cde62e6f4ce3352b75fbc37500ed1ce2d7b31e7