Malicious PDF — malware analysis report

Static analysis result for SHA-256 75666c45be88a1b6…

MALICIOUS

PDF

99.5 KB Created: 2021-03-19 14:35:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0c33c40acc9ec77b845e9ebfe42fe4a SHA-1: 13766595e1854cb80f25b94851654b1f4b7ce2c8 SHA-256: 75666c45be88a1b67395ed92f28e8169186afc2bee88e65a400020274094df83
96 Risk Score

Malware Insights

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

The file is a PDF that contains multiple embedded URLs, with one specifically highlighted as a potential phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of external URIs suggests the document is designed to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://mezovuduw.ru/award?keyword=bhaktamar+gujarati+pdf
    • http://subanufuxazis.iblogger.org/lowrey_organs_ebay.pdf
    • https://fetagurekejoj.weebly.com/uploads/1/3/2/7/132741571/verijajobazoli.pdf
    • https://balevowoperat.weebly.com/uploads/1/3/1/3/131397989/gagiwogipagafa.pdf
    • https://bibatajikoxego.weebly.com/uploads/1/3/5/3/135315017/mapebog.pdf
    • http://reactivascotia2020.com/afl_finals_fixtures_format6jc7e.pdf
    • http://ipoteka.net/how_to_clean_breville_panini_grilli65nr.pdf
    • http://flipping-car.online/tropical_rainforest_abiotic_and_biotic_factorsi7gas.pdf
    • http://christinaanddavid2019.com/wegidulusbaom4.pdf
    • http://tuvoreda.scienceontheweb.net/52256010152.pdf
    • http://pihodze.com/sasexirjux9l.pdf
    • http://stavki.link/44033765579mei5v.pdf
    • http://useporte.xyz/the_summoning_of_everyman_a_student_guide_answersk4mib.pdf
    • http://kedozupo.iblogger.org/77814097413.pdf
    • https://fokididekorup.weebly.com/uploads/1/3/0/7/130775810/bcc554ec42177.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/1932ed60-b4d7-4d98-bb52-6928f087a204/9395277698.pdf
    • http://kurorasi.rf.gd/hepatic_cirrhosis_guidelines.pdf
    • http://vuxebezedigelun.onlinewebshop.net/harley_davidson_sportster_service_cost.pdf
    • http://wagagufogubejal.rf.gd/assembler_deux_en_un.pdf
    • https://uploads.strikinglycdn.com/files/04f63f26-3246-4e85-a476-f08989a1dbeb/lg_inverter_direct_drive_dishwasher_error_code_0e.pdf
    • https://uploads.strikinglycdn.com/files/fbbf3148-0a82-49fd-8b60-8fa3d574587c/ikea_premiar_world_map_picture_with_frame_canvas.pdf
    • https://uploads.strikinglycdn.com/files/124c0dc7-d025-48b3-960c-ddfe13e3ff24/zipufawenumerusopidadip.pdf
    • https://uploads.strikinglycdn.com/files/9e9ce58f-613d-4c76-8976-8e4d717441a7/brene_brown_ted_talk_vulnerability_summary.pdf
    • http://silapopo.epizy.com/xebikaf.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_off00014a9e.bin
0a383e85f521b147467795e12deb17a1a49788c193718b7f207ed2d9d200dd57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14A9E 5436 bytes
font_01_sfnt_off00015cff.bin
2d96b119add4cc43b47b62a42a114e40012d4db39ff8991426a132392851a21a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15CFF 10840 bytes

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