Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b8afd172b419f05…

MALICIOUS

PDF

68.0 KB Created: 2021-03-27 15:11:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 28646bd79b94a9e3bda9c1a861f5477f SHA-1: 95281e7d93d68238abb2d92a891e7ab9a0d65c99 SHA-256: 0b8afd172b419f050095d23449197e3d53541b1af4d07953cef595a8b5ccc5aa
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=chair+3d+obj+free PDF link annotation
    • http://redatimiwanal.iblogger.org/baxipenumujo.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/CCZgd3i/online_auction_websites_near_me.pdfIn PDF document text
    • http://nofuwev.iblogger.org/pagalworld_bhojpuri_video_songs_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/xazolilatu/QXgfij0/giselemu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/54ad2942-48c8-4ad5-929c-2a48b5f9e997/pedibo.pdfIn PDF document text
    • http://jopiwutiz.epizy.com/machine_learning_algorithms_and_applications_book.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/guidelines_edpb_territorial_scope.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/15376304123.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/nevogepufugegoxodo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be9dcf61-985b-4332-bf2a-8ede98828908/79662550542.pdfIn PDF document text
    • http://kimaponupotowi.rf.gd/75277642136.pdfIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/addition_math_sheets_for_first_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/hereditary_cavernous_malformation.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/pl_travers_books_in_order.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/samsung_4k_blu_ray_remote_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/masulerij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbaa3a3b-8dfd-453b-a046-eed09e9f4243/68156286512.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/30649462624.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_off0000d0e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E4 5068 bytes
SHA-256: b5bc952ee03b0739ee535b2be28b2fff7aca8e1b48ea9030c37c293f98ae4751
font_01_sfnt_off0000e21e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE21E 9700 bytes
SHA-256: b8b3c074ac41843ae9ac5265efc2d2a29634e3f30c00cb02f7022bf2d3492950

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