Malicious PDF — malware analysis report

Static analysis result for SHA-256 6018e30f12306cd2…

MALICIOUS

PDF

84.0 KB Created: 2021-04-05 12:55:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 314572ebc9d97b900e45a51466f29e1d SHA-1: 4f0a263bd8d02e63e6ce2e664ac5c5052bbbb37a SHA-256: 6018e30f12306cd2ade638d65f8c64cb661882c627261a48e2a30cfe42dd2638
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely as part of a phishing or malware distribution scheme. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/award?keyword=on+crime+and+punishment+cesare+beccaria+pdf
    • http://xibipumazanepir.iblogger.org/new_tamil_album_songs_in_masstamilan.pdf
    • http://bukuminuwakub.mypressonline.com/65056039446.pdf
    • http://ferategaj.scienceontheweb.net/bionote_tagalog.pdf
    • http://kulanefimolon.mypressonline.com/hp_laserjet_pro_400_color_m451nw_driver_windows_7_32_bit.pdf
    • http://fojukivijivik.medianewsonline.com/management_style_quiz_printable.pdf
    • http://kuboduzuke.mypressonline.com/34817703656.pdf
    • http://kulokozataxat.22web.org/miwuvofeponajonafakibejo.pdf
    • http://pitupunum.iblogger.org/dorapabizedamavuxojib.pdf
    • http://jetavof.sportsontheweb.net/who_fears_death_hbo_2020.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jirebonudur/24677869786.pdf
    • http://viwekamopib.rf.gd/japujemeferojosulele.pdf
    • https://s3.amazonaws.com/zagapaxa/stanley_1m_series_spotlight_wont_charge.pdf
    • http://nobapizasiwe.myartsonline.com/calidad_de_vida_bienestar_y_salud.pdf
    • http://pejebitopaw.rf.gd/brown_bear_brown_bear_activities.pdf
    • http://nititagamoba.rf.gd/etymology_of_religion.pdf
    • http://rojanesifilagu.myartsonline.com/what_is_the_end_behavior_of_the_polynomial_function_calculator.pdf
    • https://s3.amazonaws.com/wajufifenoxuj/wuvawevamiposedepemefas.pdf
    • http://wifotuzo.rf.gd/98582067260.pdf
    • http://roworozirad.epizy.com/icps_guidelines_2016.pdf
    • http://giwofigu.epizy.com/47937669520.pdf
    • http://nodefojabotozij.rf.gd/mokiwutimasezixopa.pdf
    • https://s3.amazonaws.com/sumesawoxajew/consumer_reports_truck_tires_2016.pdf
    • http://jibipadesubamom.epizy.com/rukalopar.pdf
    • https://s3.amazonaws.com/risisipajole/787738954.pdf
    • http://puwagof.rf.gd/colette_movie_parents_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa5f.bin
0174dea4dd86b4ab250dc6c1863b5f24ef417c6e938434fa37ee59bf336277b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA5F 3460 bytes
font_01_sfnt_off000106bd.bin
5247b69a50cac374c1a54975ec364caad30325294e814f123e01095e3fe34b2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106BD 5532 bytes
font_02_sfnt_off00011951.bin
979401e02f3a25ef39cbc1843da0d4221b5b944bfb29c640be3701a6558c213b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11951 12136 bytes

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