Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aaf216ece3dfe60…

MALICIOUS

PDF

34.1 KB Created: 2021-06-26 19:39:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5a9a216be9a1f533a743745cfc760c19 SHA-1: 44ad3525a4225247d2d232dc438e684a6c176d55 SHA-256: 6aaf216ece3dfe600b7440839b0183278dc711500b47c5ae93c85fae243b9949
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that explicitly advertises game hacks and free in-game currency for popular games like Roblox and Coin Master. The primary URL, http://netcdn.co/app/431946152/invincibility-hack-roblox-game-hack, is flagged as a high-risk lure for game hacks. This suggests the document's purpose is to trick users into visiting malicious sites that likely distribute malware or engage in phishing. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/invincibility-hack-roblox-game-hack PDF link annotation
    • http://sttlets.education/senayan/repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/getrobux-now_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-murder-mystery-free-knife-codes_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-without-getting-banned_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-shirts-on-roblox-no-bc-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/hack-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-free-items-glitch-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-in_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-admin-commands-in-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/is-java-minecraft-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_off0000307f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307F 21652 bytes
SHA-256: e0f108a8a9738ce230b72fe9e1b60050ac8d4ff40aeac4c28fb52c5908dd0611
font_01_sfnt_off00005fd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD4 19176 bytes
SHA-256: 7e8b846981d38f6b2b1efab7d26b5e301ef274a0d35ff147f986ec4bb4ee9911

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