Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb9989bdf0b80aa5…

MALICIOUS

PDF

74.1 KB Created: 2021-03-17 03:11:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51206916d18bee8fbcab753572c95781 SHA-1: d057cfab6248076fc5f48233a0e4229b7ece75dc SHA-256: eb9989bdf0b80aa5ad8d4ae7249efee55d38b13c2be492fa7dfe0b4311b48f1c
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a malicious site, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://pelibifir.ru/strik?utm_term=american+literature+classics+top+10
    • http://finofubamu.mygamesonline.org/percentage_quantitative_aptitude_questions_with_answers.pdf
    • http://jikusofare.mywebcommunity.org/anatomy_atlas_download.pdf
    • http://forisawidokomor.sportsontheweb.net/desifiw.pdf
    • http://novonet.online/safety_not_guaranteed_spoilerih3q8.pdf
    • http://xobilosusi.sportsontheweb.net/cardan_shaft_design_calculation.pdf
    • http://bumumapa.mypressonline.com/organic_chemistry_class_11_solutions.pdf
    • http://bisoxixax.22web.org/44663875964.pdf
    • http://medebupima.sportsontheweb.net/60163889705.pdf
    • http://volosaty100.xyz/vinirodakekab0c5e.pdf
    • http://lamejix.scienceontheweb.net/vajajinumebesepuwuxuv.pdf
    • http://vipadobotisituz.mygamesonline.org/nemepimomarejibugupixa.pdf
    • http://jolijivik.scienceontheweb.net/54249888110.pdf
    • http://bitiwiz.medianewsonline.com/list_of_silent_letters_from_a_to_z.pdf
    • http://atlas-copco.su/magic_chef_electric_pressure_cooker_manualnn7vi.pdf
    • http://cetapp.xyz/factoring_polynomials_practice_problemsi8rzs.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/dee193c8-7130-42f1-85da-218e237f845a/tekegalafi.pdf
    • https://uploads.strikinglycdn.com/files/5157216e-b3f2-4190-9779-bcaaf3ab2a10/how_to_manage_your_time_as_a_student.pdf
    • http://xolavozezimodan.onlinewebshop.net/download_this_is_amazing_grace_by_phil_wickham_ft_lecrae.pdf
    • https://uploads.strikinglycdn.com/files/e33049bf-8314-4926-aae0-9433eb554bcd/how_to_writing_paper_template.pdf
    • http://reluwiz.epizy.com/bihar_board_10th_result_2012.pdf
    • http://kebenubes.onlinewebshop.net/32124965000.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_off0000e2ae.bin
1543252e0b36e009e21b4e9ce7403858900a4a4b9b1eb29a1c60e7247ecc9a21		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2AE 5260 bytes
font_01_sfnt_off0000f479.bin
00555f8e9068ebbf0ead2cc2e5ffd088fa8f06ba35ee19ba7fb794a9797cdad3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF479 11428 bytes

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