Malicious PDF — malware analysis report

Static analysis result for SHA-256 542d64e33303473c…

MALICIOUS

PDF

84.9 KB Created: 2021-04-05 02:37:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f62ec6eeab28403de486e7e820de419e SHA-1: b9d99f5bb653a78fd5a641dd3a42677012e4cd3d SHA-256: 542d64e33303473c7d2052604b5bc579ae995c9cd6d4ce9811bf94e3b5a513bf
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URI that points to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to "guns of glory cheats free", suggesting a lure for users seeking in-game advantages. The presence of external URIs indicates an attempt to redirect the user to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://mezovuduw.ru/wix?keyword=guns+of+glory+cheats+free
    • http://tajuliwelofiti.medianewsonline.com/xetoj.pdf
    • http://xujaxul.mywebcommunity.org/biodata_format_for_marriage_file.pdf
    • https://cdn-cms.f-static.net/uploads/4488570/normal_604e93982d77c.pdf
    • http://kapusta.pro/dungeons_and_dragons_dm_guide_3.5mg3mr.pdf
    • http://govakokes.22web.org/why_do_jehovah_witnesses_dont_celebrate_holidays.pdf
    • http://tejowigasinafu.getenjoyment.net/xutafok.pdf
    • http://subuxiwubemew.getenjoyment.net/free_weights_exercises.pdf
    • https://cdn-cms.f-static.net/uploads/4455377/normal_6011d2cd7b275.pdf
    • http://fezuzegipolekom.iblogger.org/how_do_you_calculate_residual_value_in_accounting.pdf
    • https://static.s123-cdn-static.com/uploads/4406812/normal_5fcdb470191b1.pdf
    • http://zubosoxi.22web.org/web_link_to_converter_online.pdf
    • http://cardioactiveufficiale.site/1560052730269twk.pdf
    • http://wemuwetafivaxe.sportsontheweb.net/adiabatic_lapse_rate.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://poweradufuxi.epizy.com/bellino_hotel_collection_sheets_thread_count.pdf
    • https://s3.amazonaws.com/suxuzubojut/nimoj.pdf
    • https://s3.amazonaws.com/pafiganovavi/real_estate_agent_license_classes_near_me.pdf
    • http://pifimofizo.rf.gd/41245466790.pdf
    • https://s3.amazonaws.com/wovedukevikov/metallica_back_to_the_front.pdf
    • https://s3.amazonaws.com/tufujifinobiro/19518971008.pdf
    • http://zijuzul.epizy.com/5_day_per_week_bible_reading_plan.pdf
    • http://safefimij.epizy.com/everyday_anyone_nominal_song_free.pdf
    • https://s3.amazonaws.com/xeropizuwe/telefon_besetztzeichen_sound.pdf
    • http://telulepi.epizy.com/45705331447.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000100fb.bin
97a44d6bafa079760174e29b765837fa5a4a6c6585cbd11b063f2b30b78764f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100FB 5108 bytes
font_01_sfnt_off00011267.bin
732b7486a0557b1fb802ab6b27b7ed19dfa224263d40060071db279620d3aec0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11267 11092 bytes
font_02_sfnt_off0001382e.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1382E 4324 bytes

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