Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d4ce66efb9d93e…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 14:48:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0a586404e84db7bcfc509b17f5998c7c SHA-1: 1914521d9dcdd5df109de126a628e72bbfaa90f9 SHA-256: f2d4ce66efb9d93ec2bc3b7c199331bb1eaf1e007631cc228fa4b2320b4209a3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on luring users with 'free game hacks' and 'free currency' for games like Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the document body content strongly suggest a social engineering tactic to redirect users to malicious sites. The primary URL, http://netcdn.co/app/431946152/how-to-look-good-on-roblox-for-free-game-hack, is likely a landing page for malware distribution or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-look-good-on-roblox-for-free-game-hack PDF link annotation
    • https://www.e-library.smpn09.semarangkota.go.id/repository/roblox-hack-reason-2-die_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/hack-work-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/does-free-robux-work_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/roblox-robux-game-hack_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/free-roblox-places-in-roblox-studio-download-2021_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/roblox-secret-cheat-codes-music_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-to-get-2021-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/roblox-free-download-for-macbook-air_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/free-roblox-wing_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/roblox-apocalypse-rising-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-to-get-hacker-mask-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-to-hack-clothes-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/roblox-cute-girl-outfits-for-free_GM431946152.pdfIn PDF document text
    • https://www.e-library.smpn09.semarangkota.go.id/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9F 22308 bytes
SHA-256: 002de6da7b2afe1b978f5067fd88ae1446902cc9fb30ead38a265dae4f6b91b7
font_01_sfnt_off0000614b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614B 19156 bytes
SHA-256: 572578f25a288380fe7957e5a07573111f25b66cc95564388c0cd87b55a7903b

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