Malicious PDF — malware analysis report

Static analysis result for SHA-256 945845d914055009…

MALICIOUS

PDF

75.8 KB Created: 2021-03-17 14:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 486a9ce53ab163b41a2daab7906da591 SHA-1: 142652c5ea0a596f8b6fffd3f2db00b7d5fd27c8 SHA-256: 945845d9140550093831b2d5f6ade3ee27221130d0c5afca6276dcd91290d7b8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to anime search queries, suggesting a lure to trick users into visiting the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/strik?utm_term=is+there+a+season+2+for+no+game+no+life
    • http://kukebeg.22web.org/50754483563.pdf
    • http://sibasijiv.22web.org/ghosts_by_raina_telgemeier_full_book_online.pdf
    • http://nurigufasuvunu.iblogger.org/bass_guitar_for_beginners_download.pdf
    • http://xepuxupipe.mywebcommunity.org/jegigod.pdf
    • https://cdn-cms.f-static.net/uploads/4424935/normal_60172d020764e.pdf
    • https://cdn-cms.f-static.net/uploads/4410975/normal_5fd821f71e213.pdf
    • https://cdn-cms.f-static.net/uploads/4393033/normal_6011d0a165edf.pdf
    • http://kezosod.iblogger.org/fimewebiziwogunijemix.pdf
    • https://static.s123-cdn-static.com/uploads/4460233/normal_5fe4115d4ee87.pdf
    • https://cdn-cms.f-static.net/uploads/4417212/normal_6026177cd7baa.pdf
    • http://doxisodezezaku.iblogger.org/5739902396.pdf
    • http://jonebukusopovet.mygamesonline.org/dezilupefomobato.pdf
    • http://munoleriba.iblogger.org/angular_2_datepicker_format.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tevefetilojas.atwebpages.com/simple_list_of_irregular_verbs_in_english.pdf
    • http://gowesano.epizy.com/tosinaselix.pdf
    • http://motinekan.epizy.com/talambuhay_ni_jose_rizal_worksheets.pdf
    • http://wobemiko.epizy.com/pilebazamufelawexunakebir.pdf
    • http://gagonunanu.epizy.com/arpan_film_ka_song.pdf
    • http://joratunezawaxa.epizy.com/airlift_movie_online.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_off0000ebc1.bin
958e52f80a1aebfc05611bdda371a80ea4f20e349ff959c56a46d18aee3efec9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC1 5248 bytes
font_01_sfnt_off0000fd71.bin
8c3feb8db151d2ad80ffa17b5e625411eaf09a2f08c2e666c33bffd1374c2450		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD71 10852 bytes

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