Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fe0a29dd48c353e…

MALICIOUS

PDF

70.5 KB Created: 2021-04-01 12:18:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54c34eb964fc20bdb13c3d7609ff9b92 SHA-1: 91d2b0dc1053c5ea9b68c4d1e96f8707ccd221da SHA-256: 7fe0a29dd48c353e8ad322466d12c3d8a61431584bb44a1f3ccd212fa00b43dd
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a webtoon, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://vilenefex.ru/strik?utm_term=the+wrath+and+the+dawn+webtoon
    • https://zupufirelerige.weebly.com/uploads/1/3/0/9/130969681/5534954.pdf
    • https://xuzizalebu.weebly.com/uploads/1/3/4/7/134772475/malabeluwomewos_batir_gibexanoru_kixarum.pdf
    • https://soravetojovon.weebly.com/uploads/1/3/4/8/134890923/3921285.pdf
    • https://fejegexe.weebly.com/uploads/1/3/4/6/134617501/falibenobagaxo.pdf
    • http://vesefotaso.iblogger.org/pathfinder_2e_advanced_players_guide_archetypes.pdf
    • http://kidufamipowanot.mywebcommunity.org/the_most_famous_songs_of_all_time.pdf
    • http://folugomobok.getenjoyment.net/raloz.pdf
    • http://pawusewi.sportsontheweb.net/rugoli.pdf
    • http://gezakiribonenin.mywebcommunity.org/chacha_chaudhary_comics_free.pdf
    • http://petrol-v-pol-price.site/gujapokimotapobi9x2qi.pdf
    • http://insurancesouk.com/78173206106pu3y7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lorugipopuxe/vamoxutinademodugiresan.pdf
    • https://s3.amazonaws.com/fifuto/zudebupejaduxirijefikono.pdf
    • http://gajovab.epizy.com/michelle_beatles_piano_sheet_music.pdf
    • http://livunox.rf.gd/irregular_plural_forms_worksheet.pdf
    • http://fovemotalulefil.rf.gd/company_core_data_sheet.pdf
    • http://kimawawasero.onlinewebshop.net/geruxibifonavuvidevukija.pdf
    • http://vefapiba.epizy.com/ch_11_maths_class_10.pdf
    • http://kepugemegabewor.rf.gd/english_nursery_rhymes_free_download.pdf
    • https://s3.amazonaws.com/lukepepe/swan_lake_violin_sheet_music_easy.pdf
    • http://lexituvom.epizy.com/pajepeku.pdf
    • http://xakizeko.epizy.com/watermark_python.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_off0000d6a2.bin
371f505e3f39878faf008232b0e91de53e79202dd7814f059c6d8326f472f988		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A2 4884 bytes
font_01_sfnt_off0000e744.bin
fc3836711dd2c7be26bf5886c64851f22ced7faf883a6b68c9758fe10e0d5e13		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE744 11096 bytes

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