Malicious PDF — malware analysis report

Static analysis result for SHA-256 51c74d8c7a2b3d2b…

MALICIOUS

PDF

219.3 KB Created: 2021-03-24 00:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 857981f3488d84a003ae9e5f7a6ee98b SHA-1: da3980877beac26e9d92ba280e70cc1d03faca2f SHA-256: 51c74d8c7a2b3d2be463063d851dd5dad28997da9ac4bd7ddae1c782f0ca2908
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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://ponafet.ru/strik?utm_term=mircea+eliade+myth+and+reality PDF link annotation
    • https://risibazizugati.weebly.com/uploads/1/3/4/7/134710005/4837467.pdfIn PDF document text
    • http://tafiwon.mywebcommunity.org/bangla_to_arabic_language_book.pdfIn PDF document text
    • https://lavolobaned.weebly.com/uploads/1/3/0/7/130740571/2883385.pdfIn PDF document text
    • https://cdn.sqhk.co/makubeku/h84hjeR/xuzuvopagafowonavew.pdfIn PDF document text
    • https://cdn.sqhk.co/woteruzid/biRxMhh/mediamonkey_android_review_2020.pdfIn PDF document text
    • https://zedetebi.weebly.com/uploads/1/3/1/0/131070456/6139013.pdfIn PDF document text
    • https://cdn.sqhk.co/gigijuke/fgdijgh/46734338435.pdfIn PDF document text
    • https://bewizujire.weebly.com/uploads/1/3/2/3/132303264/kisizefutot.pdfIn PDF document text
    • http://pifemukopisare.sportsontheweb.net/dremel_7700_cordless_review.pdfIn PDF document text
    • https://cdn.sqhk.co/wibepudib/eqgfVii/chess_online_uptodown.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://valupakukav.myartsonline.com/tobaxalevewojax.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/79356801782.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/gunigowesod.pdfIn PDF document text
    • https://s3.amazonaws.com/widetunipet/47547115971.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/sigawudakebilo.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/egyptian_cotton_fitted_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wovedukevikov/aqa_gcse_physics_equation_sheet_p1_higher.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/how_do_you_fix_an_electric_leaf_blower_that_wont_start.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/army_of_darkness_defense_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/significant_figures_chemistry_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/5240267878.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/tai_chi_balance_exercises_for_elderly.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/turokinutagot.pdfIn PDF document text
    • http://dezobod.onlinewebshop.net/teacher_created_resources_coupon_august_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/vuzodekexafelibum.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/bst_dongle_3._41.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/what_is_radical_reconstruction_apush.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F8A 5108 bytes
SHA-256: 4d8e1af48dcf0a78d8e5e56def19a07f3fba0fae588a57d9b4532c2ab1da952c
font_01_sfnt_off000330c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330C9 15904 bytes
SHA-256: 177d25220e236c1f2a5daffa19d5efada0fd4803a3690e4288b13e9e3fef803d

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