Malicious PDF — malware analysis report

Static analysis result for SHA-256 44f46e53b0c41c0a…

MALICIOUS

PDF

87.9 KB Created: 2021-04-02 19:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 466fc4c2b3c7452f9e778b538c08898c SHA-1: d3c128844eafea4f5f72fb105984a10094156390 SHA-256: 44f46e53b0c41c0a5f5b0e3526e201279f983de3cd1eb1fe3cee967ca21116a5
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a gambling-related website, suggesting a phishing or scam attempt. No scripts were extracted, but the presence of external URLs and the ML detection strongly support a malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/wix?keyword=scatter+slots+apk
    • https://cdn.sqhk.co/kurotevu/aICjfjb/90870661594.pdf
    • https://cdn-cms.f-static.net/uploads/4490961/normal_600b1cc9aec09.pdf
    • http://wovuwukotuvoxi.mygamesonline.org/bluejacking_ppt_and.pdf
    • https://static.s123-cdn-static.com/uploads/4391915/normal_5fe0bc28066f3.pdf
    • https://cdn-cms.f-static.net/uploads/4415526/normal_601b602ae630e.pdf
    • https://cdn.sqhk.co/mizipudi/djbjbJ5/funinekufebu.pdf
    • https://cdn-cms.f-static.net/uploads/4480585/normal_6032a3860a94b.pdf
    • https://cdn.sqhk.co/galemojubemo/eYjghAI/guideline_for_hyperlipidemic_severe_acute_pancreatitis.pdf
    • https://cdn.sqhk.co/juduxijumijo/jbjb6hf/sea_monster_city.pdf
    • https://cdn.sqhk.co/pajubopolak/nk7xje5/spaceship_simulator_ios.pdf
    • https://cdn-cms.f-static.net/uploads/4454421/normal_60453a2368d30.pdf
    • https://cdn-cms.f-static.net/uploads/4455196/normal_602094eb10c4b.pdf
    • https://cdn.sqhk.co/tozegatopaxu/PphcHG2/8777183220.pdf
    • https://cdn.sqhk.co/posaleren/hhTQxif/62736360764.pdf
    • https://cdn.sqhk.co/bazexolareja/DDkiijj/android._permission._write_secure_settings_android_9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zavinawotomuvef.epizy.com/alum_creek_state_park_fishing_report.pdf
    • http://tosurok.myartsonline.com/red_lobster_nutrition_facts_2021.pdf
    • http://lufusemeg.epizy.com/acidosis_metabolica_tratamiento_nutricional.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f61a.bin
1667286c841d76798a4eb2ba4d2993b96a5e53f14f408966d112361e0becd425		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF61A 5092 bytes
font_01_sfnt_off00010776.bin
075355ba5b92c0068d7bdce5ab4610475bd72ade675ca0460cd7f461324d8575		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10776 4184 bytes
font_02_sfnt_off00011704.bin
1e29078070856822ba394373b379613fd26c6cd8814566538eb372282b18a5a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11704 11164 bytes
font_03_sfnt_off00013d38.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D38 16092 bytes

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