Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f1ff8230afb79b6…

MALICIOUS

PDF

32.9 KB Created: 2021-07-06 19:06:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3d398eb4c4479781498438dbb505a257 SHA-1: 2206fe0209c42bed6deb2c18af433746a4a65be7 SHA-256: 3f1ff8230afb79b6a823f5c710cd6a22de08240fab44867ea77ec4ea5b74063f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are disguised as generators or hacks for popular games like Roblox and Coin Master. The primary lure appears to be 'free TikTok likes trial game hack' directing to http://netcdn.tw/app/835599320/free-tiktok-likes-trial-game-hack. This suggests a phishing or scam campaign aiming to redirect users to potentially malicious sites. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a social engineering attack.

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.tw/app/835599320/free-tiktok-likes-trial-game-hack PDF link annotation
    • http://katalog.stikesmukla.ac.id/repository/roblox-vietnam-2021-aimbot-hack_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/can-you-give-limited-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/unkown-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/is-free-robux-tool-created-by-hypernova-safe_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-robux-for-free-2021_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_off00002e1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E1C 21932 bytes
SHA-256: 99ecba369f67e6a2dd78ba0ee86c03aca77b062024de96871b2dacfdd206d13f
font_01_sfnt_off00005e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9B 18048 bytes
SHA-256: 79ac6f62d09ddaae7b94436d308edb87f31d51d173a73ee189228e1c92a6fbae

Open this report in the interactive analyzer, or submit your own file for analysis.