Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1129bdc736f9523…

MALICIOUS

PDF

64.5 KB Created: 2021-02-19 23:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a65bd0c3a59b7e0cb64d4f30024db660 SHA-1: fee1eae2f86d85bae423ceca7b4b7a7998279631 SHA-256: b1129bdc736f9523e96ac6c92d090333b5d9bce5992e24983e1f82019a76dd5a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wix?keyword=frigidaire+range+parts+manual PDF link annotation
    • https://debemalimuwu.weebly.com/uploads/1/3/4/3/134385929/fuvadufozet.pdfIn PDF document text
    • http://kudopifupelixi.22web.org/bevudelokujoworisom.pdfIn PDF document text
    • https://nolipugi.weebly.com/uploads/1/3/4/6/134652161/widitasulenujafu.pdfIn PDF document text
    • http://guitar.su/134124756589f5vh.pdfIn PDF document text
    • http://sodaapp.club/backup_android_without_googleljbu0.pdfIn PDF document text
    • http://top-shop-store.website/xiromoraneufldv.pdfIn PDF document text
    • http://ketousa.site/25876411889aipgg.pdfIn PDF document text
    • https://cdn.sqhk.co/talexadu/eyfiabd/pirokoj.pdfIn PDF document text
    • https://wakukaxowemaba.weebly.com/uploads/1/3/5/3/135303752/gezipewokabuje.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://diverozisutujew.epizy.com/ccd_addenda_record_format.pdfIn PDF document text
    • http://pofepopogako.rf.gd/87742245534.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/casio_watch_manual_3240.pdfIn PDF document text
    • http://bexadujozopu.epizy.com/l2r_combine_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/76325217962.pdfIn PDF document text
    • http://bitediwufekoxem.epizy.com/88110142547.pdfIn PDF document text
    • http://kamegowemegoguw.rf.gd/plunge_saw_and_guide_rail_hire.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/burnout_paradise_remastered_platinum_trophy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/free_editable_monthly_newsletter_templates_for_teachers.pdfIn PDF document text
    • http://vigukesege.epizy.com/26845983738.pdfIn PDF document text
    • http://safefimij.epizy.com/45770141510.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/night_begins_to_shine_dragon_remix.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_off0000c16a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC16A 5236 bytes
SHA-256: d2b1534f4b64956fbe3126ef644200fd6d979710e88be28b834a2ac357d937c3
font_01_sfnt_off0000d325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD325 9940 bytes
SHA-256: 8956e5e835c73f07a5effbc18fdd2f3a1d784608449bfa05a58deda4c8a4c8e7