Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eabe06736feb595…

MALICIOUS

PDF

77.0 KB Created: 2021-09-24 02:33:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 386dcd52cfd56c060f3dad130e883262 SHA-1: 11f90e18a8a28e19ae0a727346bb03131ce30434 SHA-256: 9eabe06736feb595cd42acd344e866f0ec622e4e3ab5e04c9f76252729d80327
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to unknown or potentially malicious domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a common phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://lawngo.net/fckfiles/nojanizemuxarevusege.pdf In PDF document text
    • http://nikacarpet.nikacarpet.com/My_Project/Hamishe_bahar/ahar_img/files/24607664099.pdfIn PDF document text
    • https://saptabangunmanunggal.com/indomobils/upload/file/mudifezutiwusazefal.pdfIn PDF document text
    • http://handsonmontessoripk.com/userfiles/files/lewodesigaze.pdfIn PDF document text
    • http://hamkr.com/userData/board/file/gimevowi.pdfIn PDF document text
    • http://klinok-saintp.ru/files/36152221091.pdfIn PDF document text
    • http://mercuresamuichaweng.com/admin/file/87348768110.pdfIn PDF document text
    • http://jncs.kr/page_data/file/20210902220001.pdfIn PDF document text
    • https://gymlesgeants.com/upload/editor/file/dukujuleluzezuz.pdfIn PDF document text
    • https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/87697687104.pdfIn PDF document text
    • https://alebusph.centralcms.cloud/galeria/files/13307860404.pdfIn PDF document text
    • https://signika.pl/Upload/file/vedovumotugu.pdfIn PDF document text
    • http://xlpe.net/Images_upload/files/bidufipitafoko.pdfIn PDF document text
    • http://vdavloeren.be/userfiles/files/40469653670.pdfIn PDF document text
    • https://zbmbudomont.pl/userfiles/file/50610317090.pdfIn PDF document text
    • http://garantc.ru/userfiles/file/50201492030.pdfIn PDF document text
    • https://norservis.com/files/files/ziximuvekoj.pdfIn PDF document text
    • http://nuklearmedizin-amro.de/userfiles/file/39978964337.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/44c601334b9d0f8c4f01ed5d0d63146f/febasadumozorawoto.pdfIn PDF document text
    • http://fitnessklub-impuls.pl/uploads/assets/file/55650709936.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d02f473c1c---vafadologa.pdfIn PDF document text
    • http://budohurtsa.pl/userfiles/file/tanevuvegeregomu.pdfIn PDF document text
    • https://andreivieru.com/ckfinder/userfiles/files/75293223476.pdfIn PDF document text
    • http://holzweiss.at/3565614412.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=my+little+pony+apkPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c95c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC95C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE173 10176 bytes
SHA-256: 9bb256fd68ff98473e305b398e888c8b598ab174a3299c90a3cf1c2b3266aea2
font_02_sfnt_off0000f853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF853 17852 bytes
SHA-256: fa77a57cff14eaa6e404ba994e5d6380c7b0a4243d6deb0f90db39cafe722dd5

Open this report in the interactive analyzer, or submit your own file for analysis.