Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0f9fc602d1431b1…

MALICIOUS

PDF

102.7 KB Created: 2021-03-17 23:03:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a94eea787907f70474c2ca19905a08c0 SHA-1: 7617e21fa9bcafb424abf0e36da4f552227c41b2 SHA-256: e0f9fc602d1431b1d0defceee04e487d30075d80555b97406a6cf40d84889a0f
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an external URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though partially corrupted, suggests a deceptive lure related to a 'son' and a PDF, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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/award?keyword=ils+ont+mang%25C3%25A9+mon+fils+pdf
    • https://cdn.sqhk.co/wiberini/2Sibimj/juzidoboberasekotisuv.pdf
    • https://bemagage.weebly.com/uploads/1/3/4/5/134525224/wojasirajebaxa-tapenibivuraz.pdf
    • http://puveputado.sportsontheweb.net/hamilton_beach_coffee_carafe_replacement_49980a.pdf
    • http://wamipivifubape.sportsontheweb.net/charbroil_grill_grates.pdf
    • https://cdn.sqhk.co/vibisidumes/4jbeQj3/70817636560.pdf
    • https://wojedebaroz.weebly.com/uploads/1/3/1/6/131637691/7616051.pdf
    • https://vugulufubixe.weebly.com/uploads/1/3/5/9/135979185/vojovef.pdf
    • https://cdn.sqhk.co/vefuwebilux/9X0hdhi/funny_status_for_whatsapp_for_friends.pdf
    • http://fulifubajamo.mywebcommunity.org/golikuteriwaguto.pdf
    • https://cdn.sqhk.co/bapuwanuvadi/jjzhcTW/voice_recorder_not_working_on_iphone_7.pdf
    • http://rasudilikid.mywebcommunity.org/kakemipiwitaxajel.pdf
    • http://napufokotipo.getenjoyment.net/daddy_poem_sylvia_plath_essay.pdf
    • http://pemotutafid.mywebcommunity.org/calc_2_cheat_sheet.pdf
    • http://nikibolerobika.getenjoyment.net/ropiko.pdf
    • https://guduzuzej.weebly.com/uploads/1/3/1/6/131606672/popoxaleduboxefa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tumuzu/malayalam_new_movie_abrahaminte_santhathikal.pdf
    • http://doriponesarom.myartsonline.com/59259532717.pdf
    • https://uploads.strikinglycdn.com/files/545fa137-c139-47d2-82b4-141cd5e96506/class_5_maths_book_download_ptb.pdf
    • https://s3.amazonaws.com/magapeguwabe/bixobojuwobobaf.pdf
    • https://s3.amazonaws.com/mivokozibu/83078335468.pdf
    • https://s3.amazonaws.com/bokelur/probability_questions_and_answers_for_class_10.pdf
    • https://uploads.strikinglycdn.com/files/7b9555ba-fdf1-4870-b2cb-ab0f5e450f8a/joriwete.pdf
    • https://uploads.strikinglycdn.com/files/3f1efe9c-67fc-47dc-a815-9bf3a4d77731/new_yorker_magazine_subscription_services.pdf
    • https://s3.amazonaws.com/vukujidor/77873792245.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_off00015142.bin
5a0b4c5f0702f01470ca70a9a218f8b3947089717c701b7396a69ef11f23e713		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15142 5344 bytes
font_01_sfnt_off0001631d.bin
fe8e4a8f472227dc8eefce4cb05032238c0417bb283cbbc1747f433fb66af9b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1631D 12924 bytes

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