Malicious PDF — malware analysis report

Static analysis result for SHA-256 99e19a8a09e4fb37…

MALICIOUS

PDF

71.0 KB Created: 2021-01-27 07:46:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5b0057a69b7be7e08a3736cdd1afa057 SHA-1: 778a2b602316f30a5ae818592c073497937f4de8 SHA-256: 99e19a8a09e4fb3717352bd25da7c2da4a937209a9b1ab1315a091ad5649ee8a
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://maypoin.ru/123?utm_term=star+wars+bloodline+audiobook+free+download PDF link annotation
    • https://cdn.sqhk.co/mifijizudi/gjgaji1/gikijemogoxet.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/ihh3R9L/xitiximotugaxezotuwamanom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380525/normal_5ff0d2e61633d.pdfIn PDF document text
    • https://cdn.sqhk.co/mugejufunij/crNgeeX/police_chase_columbus_ohio_today.pdfIn PDF document text
    • https://cdn.sqhk.co/xavipinav/WjdoheP/47616215469.pdfIn PDF document text
    • https://cdn.sqhk.co/jigixomavola/jegfFjd/gefusudelufalovaloxali.pdfIn PDF document text
    • https://cdn.sqhk.co/nivodoruw/auAuYhc/talking_tom_candy_run_mod_apk_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/siehjmt/wejudetatodiwisel.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwewiwudesi/vLgj1jh/slice_shapes_illustrator.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369508/normal_600a266a6c20c.pdfIn PDF document text
    • http://labiosdewonda.com/18359399292si03o.pdfIn PDF document text
    • https://cdn.sqhk.co/vomuvojovi/c4jf8uA/crazy_ball_3d_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428045/normal_60083ced94268.pdfIn PDF document text
    • https://cdn.sqhk.co/bawevabob/giG6Vgf/31844961696.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/juliziwojatige/algebra_worksheets_grade_12.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/seporimefovutar.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/pic_collage_editor_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/rimesufajonid.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_off0000d982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD982 5300 bytes
SHA-256: 38901f6b8e2c2b478e7859818b5ca7b3f2bd60e910e1fdcc93d38157f6420523
font_01_sfnt_off0000eba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA8 10240 bytes
SHA-256: 14efdfb8d1fdf02d81da6d774b94fc852e21919ceca688847588e2868f5ae07f