Malicious PDF — malware analysis report

Static analysis result for SHA-256 cae59700d637c25b…

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 22:14:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 04810e53c5cccc7ec3a169da5094a443 SHA-1: db4a6b5b32780c8c71155a3b574d5426ce7e61ea SHA-256: cae59700d637c25b7df973e9d25050663a795ad3e252bec549923942347d419a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux and game hacks, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to a potentially harmful website for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://netcdn.online/app/431946152/free-ways-to-get-robux-game-hack PDF link annotation
    • http://perpus.stfm.ac.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/roblox-girl_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/player-esp-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/roblox-how-to-get-robux-hack-no-scam_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E25 27956 bytes
SHA-256: a5a74fde300b3cc07780df1539a525b149bf03bcd6c3cde68165e25504c49d89
font_01_sfnt_off00008cd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD3 2892 bytes
SHA-256: e0a0e7499c3dd10c5114bd1538d6e258e6cb3acdd4f79d9538668087a4bdd2cc
font_02_sfnt_off000096bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96BC 18724 bytes
SHA-256: 4748f019d46a9554f00c7c8cf9bb59ec204dfb95bc520e2d25b5a7c8ef81b270

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