Malicious PDF — malware analysis report

Static analysis result for SHA-256 744106c59e7526d3…

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 17:17:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 14a33673f527bd85d63fd4fb36aa545d SHA-1: d1d5c55f0b276f9002f8d85810b82b19f1f39789 SHA-256: 744106c59e7526d3adcddb2f16aa3cb3391df5db875ee5a0772421df464230de
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'free generator / game hack' lures. The document body and heuristics indicate a clear intent to redirect users to external sites, likely for phishing or to download further malware. Although no scripts were explicitly extracted, the nature of the lures and the embedded URLs suggest a malicious intent to exploit user interest in free game items.

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/406889139/free-coin-master-spin-generator-game-hack PDF link annotation
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-roblox-money-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/games-free-download-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-hack-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/2021-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/dev-web-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/dll-dor-roblox-hacks-aimbot_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-roblox-with-ihax-games_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/can-you-hack-on-roblox-on-xbox-one_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/minecraft-free-download-ipad_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
stream_002_off00002f42.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F42 22852 bytes
SHA-256: 181c3b7def6ef1bd44a4869bc5da7f49680919f7c8761cc476c65b2aed579385
font_01_sfnt_off00006270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6270 18176 bytes
SHA-256: 24085bd8cf0a39edb314088fc51bab287d2573b99eac6d7314d98054e4f014d7

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