Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee9216c136c1aa1…

MALICIOUS

PDF

83.7 KB Created: 2021-03-08 02:36:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 0dc8c546b86ffddd1114954eeff6d313 SHA-1: 8265df3f0b8dbc8934cbeb225678433fe215d3a3 SHA-256: cee9216c136c1aa1dd654f22f6237e8f378b89cbdb76d71007099e8261d3909e
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing lure. The document body, though heavily obfuscated, suggests a search result context, further supporting a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://kuzutuzo.ru/wix?keyword=max+boost+omega+reviews PDF link annotation
    • http://basiditdcf.space/wijunukigenuwedumifix5b9l.pdfIn PDF document text
    • http://kudretbozaci.com/hl-3170cdw_waste_toner_resetwwoqk.pdfIn PDF document text
    • http://zuzorovix.scienceontheweb.net/segominaros.pdfIn PDF document text
    • http://nekuwagibajese.getenjoyment.net/the_giver_chapter_1_summary_and_analysis.pdfIn PDF document text
    • http://dirtygirl.fun/34451568567qd039.pdfIn PDF document text
    • http://jobauthor.online/block_tank_wars_unlimited_money00qja.pdfIn PDF document text
    • http://sewawena.scienceontheweb.net/are_bmi_scales_accurate.pdfIn PDF document text
    • http://morasufas.iblogger.org/97478285452.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4046b21c-0a2b-477a-a17b-a1354ede8b8a/zezuzute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/446c05e4-19d5-4973-a437-4b632aa983f2/sat_geometry_practice.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/formal_letter_with_attention_line.pdfIn PDF document text
    • http://padusij.onlinewebshop.net/istikhara_ki_dua_with_urdu_translation.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/zasaxaxolu.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/kutilujagamavumaxalid.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/bid_wars_pawn_empire_mod_apk_revdl.pdfIn PDF document text
    • http://gufalejev.epizy.com/cryptic_carbohydrates_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/72781286090.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/after_action_review_template_powerpoint.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/75301256065.pdfIn PDF document text
    • https://s3.amazonaws.com/minegikukovel/86458673753.pdfIn PDF document text
    • http://vimadetuvawese.rf.gd/diary_of_wimpy_kid_2010_movie_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/naxavabedogalefi.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/bekaromobubejolesosidu.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_off00010b07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B07 5336 bytes
SHA-256: 356294ca43514edb44c135b01f2c1bda61a787f95376d837c9cad406476f59b2
font_01_sfnt_off00011d38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D38 10608 bytes
SHA-256: b680a26b1e5e6fa031987f12290dea652d7792a7a301da22879b3050af3cd13a

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