Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfe825b72290c9c4…

MALICIOUS

PDF

72.8 KB Created: 2021-03-15 09:21:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: edcfc98eb887d14dddb2251257aa3a63 SHA-1: 950fd0fbffe89aa359b1208ac16e1d5a49222e9e SHA-256: bfe825b72290c9c4f4f6f928c2a31e03e7c626378cd6a54960bb72d733182338
96 Risk Score

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 0.9998

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://bologen.ru/123?utm_term=is+there+a+spreadsheet+in+google+docs PDF link annotation
    • http://remontvorot24.com/4053882651fc86y.pdfIn PDF document text
    • http://digosige.mywebcommunity.org/what_does_the_acronym_smart_stand_for_answers.com.pdfIn PDF document text
    • http://copyrightram.net/wewekamogabelodanazptcm7.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/bAj3LIu/kopinovibiwowotuza.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/telalituvewavosumusetape.pdfIn PDF document text
    • http://bukobaxaz.getenjoyment.net/exploring_christian_theology.pdfIn PDF document text
    • https://cdn.sqhk.co/nerutamar/hcjdjbk/vewanuxaziridug.pdfIn PDF document text
    • http://kikifikoxije.mypressonline.com/35089488539.pdfIn PDF document text
    • https://cdn.sqhk.co/nujudemugipi/fKhfhip/truck_wallpaper_for_your_phone_pictures.pdfIn PDF document text
    • http://xumupizaxuto.scienceontheweb.net/wakabuzidom.pdfIn PDF document text
    • http://zijozarub.mygamesonline.org/beginner_python_3_exercises.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/bubisifapagefe/arithmetic_progression_exercises_with_answers.pdfIn PDF document text
    • http://bamoxopigodarok.epizy.com/83879801431.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/arm_workout_at_home.pdfIn PDF document text
    • http://josekopiguvalup.epizy.com/nilutazavakito.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/wofafagofidejim.pdfIn PDF document text
    • http://zimeketoxera.epizy.com/resumen_los_5_lenguajes_del_amor.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/can_i_grind_my_coffee_at_costco.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/kuvibufa.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_off0000e030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE030 5272 bytes
SHA-256: b8b2fffad23ab3fb8e8375274b3200d72ffc5e6f47a74255b106b2c04b13a175
font_01_sfnt_off0000f218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF218 10516 bytes
SHA-256: 87ba66d741e9a51df812c4aa149cd10993b2afc7cbfbc7695e1e601abd37aa04

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