Malicious PDF — malware analysis report

Static analysis result for SHA-256 f275ce308c0341fa…

MALICIOUS

PDF

69.7 KB Created: 2021-02-15 23:37:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c20675e410be58c97a1f82a86af3cdfc SHA-1: 7b2cf397fecc48076446777367f0acbd5f31f6b7 SHA-256: f275ce308c0341faf48af268eaf3e70ba7e12ed5ac81e67f919289e6770955cc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=tracking+hurricane+sandy+lab+answers PDF link annotation
    • http://1xbet-registrat.site/53846069651jwpx8.pdfIn PDF document text
    • http://prod-fruit.space/73497805036dq5do.pdfIn PDF document text
    • http://hytri.com/lavetipilalujixem5q58l.pdfIn PDF document text
    • https://cdn.sqhk.co/kadeposamo/jhj01hg/run_powered_by_adp._com.pdfIn PDF document text
    • http://helps-lnstagramcopyrights-about.com/charas_movie_hd_video_songwbxjv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503524/normal_5fe4faf06144b.pdfIn PDF document text
    • http://titanovyi-filtr.ru/patosevebbi4y0.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/wowonesoribu/mixukofoxunemuzanisopo.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/reported_speech_in_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/fekezela.pdfIn PDF document text
    • http://fepovapow.rf.gd/training_tracking_template_excel.pdfIn PDF document text
    • http://lumulexidavotaj.epizy.com/touch_vpn_for_pc_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/fedozinavejalupevup.pdfIn PDF document text
    • http://koxogulu.rf.gd/resuxudozumomesof.pdfIn PDF document text
    • http://nabesazuxipuf.epizy.com/30400703636.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_off0000d28a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD28A 5548 bytes
SHA-256: 1c4043ab805dd5458116c1569b8c36a8c71492fee6c444e332769266739f1698
font_01_sfnt_off0000e576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE576 10676 bytes
SHA-256: af13fbb77abf7d152035cae0abae3d3719481a80d9546a772fe26242d9986ef7