Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe6326dafca57406…

MALICIOUS

PDF

65.0 KB Created: 2021-01-26 07:47:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6b8cefd2946984058727210bef39678b SHA-1: 249ed39113bd133f41edb505554f2c9774f2a316 SHA-256: fe6326dafca57406dcf3115eb4a207625c77dcb4d85c9e21355b0d064636045e
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/aws?utm_term=avengers+endgame+poster+template+psd PDF link annotation
    • https://cdn.sqhk.co/rufosopufu/dQY2Ohd/wuzisumoxefu.pdfIn PDF document text
    • https://cdn.sqhk.co/tefupudoma/N2ibiaF/24798880167.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366029/normal_6003b938187a9.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelewexo/iajhjaZ/planetary_alignment_2020_today.pdfIn PDF document text
    • https://cdn.sqhk.co/bopelara/KSIgctW/89871893642.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/Tm7hieI/microsoft_teams_tutorial_for_students.pdfIn PDF document text
    • https://cdn.sqhk.co/lewulula/ieWuHke/european_sports_car_racing_series.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408993/normal_5fef4c07e6f25.pdfIn PDF document text
    • http://lalat.space/57530499576accy1.pdfIn PDF document text
    • https://cdn.sqhk.co/gepeduvo/difijgc/cheat_flip_diving_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/dIE7hfm/19922642273.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/lupebesu/uniformes_de_basquetbol_nba_mexico.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/appeal_against_parking_ticket_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/visiting_card_design_software.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/r._t._o_exam_app_for_pc.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_off0000c17c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC17C 5328 bytes
SHA-256: 88e95a156cdb14e4619e70690a7ca4c57654f6b3aa0f151d357f61cd0789ddeb
font_01_sfnt_off0000d38f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD38F 10324 bytes
SHA-256: 8c209bdadee9c48d366f518d218a07874e73c5c2a546cc2000d6cd5a9a2a0337