Malicious PDF — malware analysis report

Static analysis result for SHA-256 5348393afee78344…

MALICIOUS

PDF

34.2 KB Created: 2021-06-29 06:20:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 2e3aa0b7fbdb50dcbd95dff16e3460d8 SHA-1: 4fdfbc2d9ffce16017906bf4ad182cce0e04f79d SHA-256: 5348393afee78344493f94688881e6abeefcaac11fc16a1ed448db79751b9b3d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link disguised as a 'free generator / game hack' for Roblox, which is a common lure for malicious sites. The primary URL identified, http://netcdn.co/app/431946152/roblox-skywars-hack-trke-game-hack, is directly associated with this lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attempt, likely leading to malware download or credential harvesting.

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/roblox-skywars-hack-trke-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-studio-are-datasotres-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-jump-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-roblox-android-step-by-step-anddoid_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-gamepasses-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-hack-tool-download-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-roblox-free-builders-club_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/cheats-for-roblox-pokemon_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spin-links-december-30-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/cerberus-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/can-u-get-free-robux_GM431946152.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_off00002f19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F19 22160 bytes
SHA-256: 5b48ee6bd934b20c02a80fc4577377efd2b5d89b942cace5d5312a8cd0590198
font_01_sfnt_off00006067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6067 19000 bytes
SHA-256: ce2594711703b3b820216f680e49466b7e9594c91a72dc586b355cf58c33a2d1

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