Malicious PDF — malware analysis report

Static analysis result for SHA-256 59390411b3e886b9…

MALICIOUS

PDF

76.0 KB Created: 2021-03-03 08:19:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a40933847d4a3608d8aa9d93115ac40 SHA-1: f4dea1c194fc09655741ba3ae574b07e5c4a108c SHA-256: 59390411b3e886b92a55b1ccd23a749a3e31ee70b8066a45dae59b14505ea097
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing site disguised as a product review. ClamAV detection and ML classification strongly indicate malicious intent. The presence of an external URI and the overall classification suggest a phishing attack aimed at credential harvesting or malware delivery.

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://crophysi.ru/strik?utm_term=shark+nv501+reviews
    • http://vumonivaxozutod.mypressonline.com/jonsered_525_chainsaw_parts_diagram.pdf
    • http://wiwovurezibaso.getenjoyment.net/vivitar_bluetooth_smart_speaker_price.pdf
    • https://cdn.sqhk.co/jesupasuzoku/hnee7hb/change_color_of_object_in_photoshop_cc.pdf
    • http://gafavow.22web.org/rofigelubovepefa.pdf
    • http://pivolirarorip.mypressonline.com/how_do_i_write_a_diversity_statement.pdf
    • http://rimuzuvadan.22web.org/77380145383.pdf
    • https://cdn.sqhk.co/vefusujix/ezPNSO8/44216970119.pdf
    • https://cdn.sqhk.co/konumapedowe/Ejfhahe/talking_pretty_girlfriend.pdf
    • https://cdn.sqhk.co/resesexiraf/cIOUhaE/73503567301.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wusanobe.rf.gd/lukisore.pdf
    • https://s3.amazonaws.com/pasawexawinogad/1613556898.pdf
    • https://s3.amazonaws.com/libusamagowuvo/gerunds_and_infinitives_worksheets_grade_6.pdf
    • https://s3.amazonaws.com/fofeguj/likatome.pdf
    • https://s3.amazonaws.com/rirusozo/reported_speech_in_exclamatory_sentences.pdf
    • https://s3.amazonaws.com/tonemakopinibem/kawuwebaz.pdf
    • https://s3.amazonaws.com/magapeguwabe/lavazza_a_modo_mio_manual.pdf
    • https://s3.amazonaws.com/kibavutibeved/noxorowib.pdf
    • https://s3.amazonaws.com/fodose/performance_appraisal_sample_employee_comments.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea82.bin
1d8978f7296e2b20f43dbd6077aeef681559e093ae08d2d378d583d0fb13fa48		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA82 5380 bytes
font_01_sfnt_off0000fcdf.bin
93941f14f55817c96bc3c7bf9dced6b6a83bed1cc1b4c684d780725d6e451750		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCDF 11168 bytes

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