Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd235f165851c9c3…

MALICIOUS

PDF

61.1 KB Created: 2021-03-06 15:51:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f5bb657099b8d689f589598d829fe208 SHA-1: 30037eb2f867b37349b1bd351d20566d4e746603 SHA-256: bd235f165851c9c3f012f5fdc6c9003b87d42eafb208e80c6037bca085811a12
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting, and one prominent URL that appears to be a lure for a free download. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to potentially malicious sites for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5219

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
  • 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
  • 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://dugedepap.ru/aws?utm_term=allen+carr+book+free+download+pdf
    • http://tiwilib.iblogger.org/82833540396.pdf
    • http://padugozerur.22web.org/jojeta.pdf
    • http://bovewitavivebu.getenjoyment.net/symbol_scanner_not_working_windows_10.pdf
    • http://idealica-co.site/toxopamdte7c.pdf
    • http://likedizar.medianewsonline.com/computer_science_lecturer_books_free_download.pdf
    • http://guvorib.22web.org/dixezorujezebawunekizes.pdf
    • http://movawizaxaxato.mywebcommunity.org/47367722670.pdf
    • http://kanshoper.site/fujifilm_finepix_xp70_batteryhq970.pdf
    • http://cheapkeys.site/icici_bank_full_information32qve.pdf
    • http://help-verification.com/formas_de_comunicacion_oral_en_los_pueblosf8rf9.pdf
    • http://baykamif.space/politikologija_religije72mb1.pdf
    • http://lotukaguw.sportsontheweb.net/xunod.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://beroseji.epizy.com/14185011164.pdf
    • http://mewegojetit.epizy.com/89295516640.pdf
    • http://jilovin.epizy.com/c_o_kancharapalem_songs_naa_songs.pdf
    • http://nonulalomijowo.epizy.com/videohive_free_template.pdf
    • http://zagofij.onlinewebshop.net/domabutavogenafuxan.pdf
    • http://pexirud.onlinewebshop.net/phantom_of_the_opera_ending_explained.pdf
    • http://pupagerirawax.myartsonline.com/71928771786.pdf
    • http://luwaxilozaraxo.rf.gd/what_can_i_do_with_a_degree_in_business_analytics.pdf
    • https://uploads.strikinglycdn.com/files/d6fb7893-20b2-4694-8fde-e2023cc5e380/clear_google_search_history_on_iphone_11.pdf
    • https://uploads.strikinglycdn.com/files/f6b69e84-708b-41a7-bcac-f5031518c139/bezulu.pdf
    • http://kepipejesa.epizy.com/zikuzagibudu.pdf
    • https://uploads.strikinglycdn.com/files/1b68f349-514a-4519-8234-411171c6e1e0/puriridaf.pdf
    • https://uploads.strikinglycdn.com/files/87675be5-332d-487d-9a6e-f554c39ffc1d/how_much_is_sonic_jumbo_popcorn_chicken.pdf
    • http://wuxininozikup.rf.gd/dutotalo.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7bf.bin
5a64c01d42ba7d703adb56fa5033bc688f254463a90e64e993c563357d752dbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BF 5256 bytes

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