Malicious PDF — malware analysis report

Static analysis result for SHA-256 02492fad3ee759be…

MALICIOUS

PDF

71.2 KB Created: 2021-09-03 18:29:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 42ca4b2690f49d0c5565274999aea30b SHA-1: e29759b8ae59697457f16317d97d92f71d91310d SHA-256: 02492fad3ee759be86e3adb98dc6d730b0b4416bcc3856b4720e3073f4a6f68f
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised websites and link farms, indicating an attempt to redirect the user to malicious content. The file's structure and numerous external links suggest it is part of a campaign to distribute malware or conduct phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://huntic.ru/uplcv?utm_term=shiva+tandava+stotram+pdf+download PDF link annotation
    • http://japhina.com/upload/file/wemetexunavadujavo.pdfIn PDF document text
    • http://edins.net/userData/ebizro_board/file/19199382191.pdfIn PDF document text
    • http://frangarcia.eu/upload/file/80843760361.pdfIn PDF document text
    • https://fnb-concepts.com/images/uploads/files/wijuv.pdfIn PDF document text
    • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/tkdg5a1vut9pvbhtfhbnnreai4/65390753079.pdfIn PDF document text
    • http://sendedianqi.com/upload_fck/file/2021-8-9/20210809105601239808.pdfIn PDF document text
    • https://joebalogh.ro/imagini_ws/runenujasusenuretifamife.pdfIn PDF document text
    • http://noithatdangcap.vn/app/webroot/uploads/files/xisajesef.pdfIn PDF document text
    • http://quatanggiabao.com/images/uploads/files/34322843317.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9cf8c1f106---86776605817.pdfIn PDF document text
    • http://www.ville-dammarie.com/ckfinder/userfiles/files/66000919670.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf0fe5e5b6a---nuwivinerapomuwixo.pdfIn PDF document text
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/13ce989da3c16691832667be2028366f/wuwogibe.pdfIn PDF document text
    • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/5b2hcviegjmfhvnof2kavqeilo/63737156293.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b3437301e66---jamuzujekaselopunek.pdfIn PDF document text
    • http://bsl-trans.ru/admin/ckfinder/userfiles/files/78712791628.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/3dc823d474386ffb52b3debccf21dbf7/lifimidagupifo.pdfIn PDF document text
    • https://seeandhearbetter.ie/img/shop//contents/ludugexokibonatexilamu.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1609631520bca1---51795861916.pdfIn PDF document text
    • http://rheinmotel.com/userfiles/file/6258083499.pdfIn PDF document text
    • http://akinmedical.com/uploads/file/76979896258.pdfIn PDF document text
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/c03de80bc4bf421972c51953146ff5f3/wiwesajasixelaxejaxexo.pdfIn PDF document text
    • http://zimmerei-possert.at/tunimumobofegi.pdfIn PDF document text
    • http://naszymsladem.pl/upload/file/82705069046.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://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_off0000b468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB468 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cc7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC7F 10860 bytes
SHA-256: 6b37703567c37f8ef1e1b20cb1ed9b5bdee95f840f6769845cd9401d0527951a
font_02_sfnt_off0000e565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE565 16212 bytes
SHA-256: e030409965a1010f3246d86b73b1504e979b8c3cae0e8f854c64d64e727e63e9

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