Malicious PDF — malware analysis report

Static analysis result for SHA-256 117b8332c46390b8…

MALICIOUS

PDF

75.5 KB Created: 2021-02-17 06:22:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 745436f25395f6133ac8105de11b606f SHA-1: 070875463b408ee0eedef1dfd438a58fc087e429 SHA-256: 117b8332c46390b8d90d6599eb6361f8e5b73de995901b3bf252b57067410a83
96 Risk Score

Malware Insights

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

The PDF document contains a lure related to TV troubleshooting, directing the user to a suspicious URL. ML and ClamAV heuristics strongly indicate maliciousness, classifying it as a phishing trojan. The embedded URL is likely intended to lead the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/strik?utm_term=what+do+you+do+if+your+tv+won%2527t+turn+off PDF link annotation
    • https://cdn.sqhk.co/vinasujitupe/aukhcig/xofuxudanij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365661/normal_6027aacd71a2f.pdfIn PDF document text
    • https://cdn.sqhk.co/seworani/bDiejgJ/midway_umc_lagrange_ga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410194/normal_600d2f3137a05.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/LRifgeb/towudopamobotupoguterabu.pdfIn PDF document text
    • http://jofijuke.22web.org/volleyball_rotation_sheet_6-_2.pdfIn PDF document text
    • https://cdn.sqhk.co/gokitoser/GmiaJFY/83166539936.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/ashampoo_winoptimizer_full_version_free.pdfIn PDF document text
    • http://maretazijedoval.epizy.com/writing_skills_worksheets_for_middle_school.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/sadititivoxidabitoxoger.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/xigebaradukuwejagas.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/the_electoral_process_icivics_answers_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/vogobizi.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/are_chinese_lanterns_illegal_in_ohio.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/nfl_week_5_printable_pick_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/branches_of_metaphysics_in_philosophy.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/7121637480.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_off0000e9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D5 5084 bytes
SHA-256: 836c1e270f9a6faaf393d16452193522f9d225940c0354b18da6d7e28bbd73b1
font_01_sfnt_off0000fb46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB46 10896 bytes
SHA-256: 9cc496aa5a428f1fbe36ef5f1d48ae49d49c54483f8e6a1934cea276469204b5

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