Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaaa22bd0680d995…

MALICIOUS

PDF

71.5 KB Created: 2021-03-18 04:18:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1813bcb3cd1cb963d09852b25612f09 SHA-1: 365bc956dbe19a7d15546f428c5c7a01f350739c SHA-256: eaaa22bd0680d9955a311dde0d6262b858f978c74190d5119dd2ab1d2115a7e9
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to a school bell schedule, directing users to a malicious URL. ClamAV and ML classifiers identified this PDF as malicious, specifically a phishing trojan. The presence of embedded URLs and the document's deceptive content strongly suggest a phishing attack aimed at tricking users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dafemum.ru/wix?keyword=edgewood+high+school+west+covina+bell+schedule
    • http://xevidome.iblogger.org/nidobunovozajudado.pdf
    • http://datab.vip/the_behavioral_economics_guide_2014fl8dk.pdf
    • http://game-pro.xyz/childrens_stories_about_making_good_choicesa7eps.pdf
    • http://erogan-columbia.site/10513333808v0d46.pdf
    • http://fortuneo.biz/neil_gaiman_american_gods_books_in_orderh58f8.pdf
    • http://fojowufuzuno.22web.org/tecno_l9_plus_firmware.pdf
    • http://masterpowerpoint.com/screen_recorder_ipad_free47q32.pdf
    • http://adyga.site/kopowiruzipifelixeyo7p7.pdf
    • http://inscarusa.info/55004678579y8xxl.pdf
    • http://telgrm.site/power_pressure_cooker_xl_instrukcja_obsugi_po_polskugl25l.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gasodamuza/scribblenauts_remix_answers_5-_5.pdf
    • https://s3.amazonaws.com/paxivogedewilu/16449463167.pdf
    • https://s3.amazonaws.com/vuliwisuwig/zomavo.pdf
    • https://s3.amazonaws.com/lakujusitejojet/america_s_army_3_pc_game_free.pdf
    • http://duwutejuvozow.rf.gd/biodiversity_conservation_textbook.pdf
    • http://pepisip.rf.gd/bibliography_using_apa_format_example.pdf
    • https://s3.amazonaws.com/dupula/baxafulelajebilaruris.pdf
    • https://s3.amazonaws.com/dukajevo/figures_of_speech_worksheet_grade_3.pdf
    • https://s3.amazonaws.com/kozewuposoridil/sites_para_ler_livros_em_ingles_gratis.pdf
    • https://s3.amazonaws.com/visagogijulep/pinofakamonumabasozopirex.pdf
    • https://s3.amazonaws.com/vuraradaso/bhojpuri_bhakti_dj_mp4.pdf
    • https://s3.amazonaws.com/zikeko/guskara_weather_report.pdf
    • https://s3.amazonaws.com/jakujakula/animal_crossing_gamecube_character_face_guide.pdf
    • https://s3.amazonaws.com/fowikorejodi/transcendental_meditation_application.pdf
    • http://navadolaje.rf.gd/aptitude_test_questions_for_campus_placements.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_off0000d848.bin
9800ef75ea7f1ebe01fe3488d1b705f56805fd487f0e08ec00f6a81ccfd3e46d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD848 5356 bytes
font_01_sfnt_off0000ea9d.bin
c970e6f8fa8e06e6f6c992fcdd81d640ea636ecf166a5d722935f2975af37e46		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9D 11072 bytes

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