Malicious PDF — malware analysis report

Static analysis result for SHA-256 10059154255d35ea…

MALICIOUS

PDF

84.8 KB Created: 2021-02-15 12:43:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 11683e8a8108c34e775b4e133d34afb5 SHA-1: f3affb6b0ee2232979b6008c23327476517f9fef SHA-256: 10059154255d35eab8b5fcd1c85e2661ef639338666c94b63aa173c96cf6c569
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search query for book titles, likely as a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF. The PDF structure and embedded content suggest it's designed to trick users into visiting a potentially harmful external site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wb?keyword=list%20of%20diana%20palmer%20books%20in%20order PDF link annotation
    • https://cdn.sqhk.co/wixexozesila/jshcYgf/fishing_break_app_wiki.pdfIn PDF document text
    • http://sqrab.top/photo_to_video_maker_for_pc_windows_7d1310.pdfIn PDF document text
    • http://vumutita.22web.org/75178417263.pdfIn PDF document text
    • https://cdn.sqhk.co/pekotegafod/jaiejak/42918526687.pdfIn PDF document text
    • https://cdn.sqhk.co/kiranagel/Pihra6t/wutazesurifezazigage.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/xiepWib/9523682320.pdfIn PDF document text
    • http://labiosdewonda.com/313563118721hhp7.pdfIn PDF document text
    • https://cdn.sqhk.co/jerizukop/jjijpje/95688608596.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/jirebonudur/82754801766.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/hotel_rwanda_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/miessler_quimica_inorganica.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/free_weatherbug_app.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/sound_of_one_hand_clapping_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/south_america_landforms_and_water_bodies.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/inequality_graph_worksheet.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_off00010ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF6 5332 bytes
SHA-256: d6da6227223ca49c85ac7222e38adb1de13bc719c715a8199433e8802016aa4a
font_01_sfnt_off00012203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12203 10624 bytes
SHA-256: 42b5bd3cc8630a02ae69e78e51bc66a4af33a2ece18812763ff407ef85a21706

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