Malicious PDF — malware analysis report

Static analysis result for SHA-256 96bf05e72e814adf…

MALICIOUS

PDF

284.7 KB Created: 2021-03-15 01:10:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: e702c2ed58fcb4444a29523b34914b1b SHA-1: 212e369349d9fe49fed2b6739be18db7d340ea48 SHA-256: 96bf05e72e814adfe86586fb0a19e7bdcc313dbc67d9f9d638fb4aa4d76ec50b
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, when followed, leads to a PDF file hosted on a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to 'Marvel watcher informant'. The presence of embedded URLs and the nature of the detection indicate an attempt to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://seumenha.ru/123?utm_term=marvel+watcher+informant PDF link annotation
    • http://kukushpa.fun/fim_score_sheet_rehabdv7qt.pdfIn PDF document text
    • http://trickyturkey.com/vogegosabulawotowavujzb36.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/iije8jb/2567918417.pdfIn PDF document text
    • https://cdn.sqhk.co/xolovagi/gdbijjc/13090921630.pdfIn PDF document text
    • http://xujaxuj.iblogger.org/types_of_probability_distribution_function.pdfIn PDF document text
    • https://gifaxopolipo.weebly.com/uploads/1/3/0/7/130739444/1620044.pdfIn PDF document text
    • http://1-bog.ru/powerstroke_3100_psi_yamaha_gas_pressure_washer_manualy3pi5.pdfIn PDF document text
    • https://cdn.sqhk.co/wireriduwude/jciwthh/metal_world_map_wall.pdfIn PDF document text
    • https://cdn.sqhk.co/jokawefezo/IThc6jd/nfl_tv_schedule_today_s_games.pdfIn PDF document text
    • https://nepagezefo.weebly.com/uploads/1/3/4/4/134472827/4630031.pdfIn PDF document text
    • http://vadonodip.22web.org/poulan_pro_blower_bvm200vs_wont_start.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xojesenokok.epizy.com/cambridge_pet_vocabulary_exercises.pdfIn PDF document text
    • http://turebegifazuxa.epizy.com/aadhar_card_password_download.pdfIn PDF document text
    • http://dojopugoput.epizy.com/rakuten_viber_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/tenetofa.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/us_passport_renewal_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/70026988988.pdfIn PDF document text
    • http://disetorabagubed.epizy.com/6390943346.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_off000428e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x428E9 5100 bytes
SHA-256: eb5fabc3a69fb7ec8c56923efed3461adb29f1d883a926b8094f324f51381acd
font_01_sfnt_off00043a3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43A3C 13300 bytes
SHA-256: cc96f3d3190481ec7227dc464533f3e04ad3893df7cbf5e00fcadfca572e094b

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