Malicious PDF — malware analysis report

Static analysis result for SHA-256 9465d6bb2a1c272c…

MALICIOUS

PDF

47.7 KB Created: 2021-06-04 02:29:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 11abb4e85a92975a857cb9c06f0d7197 SHA-1: 9f754c845ab934e22250071af11e34ced507f23a SHA-256: 9465d6bb2a1c272cae1569abb83db594902cf47fbe59fb1ff26ba6b35397b6a3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure related to free Robux and game hacks, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious, and the embedded URL is associated with a game hack redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lead the user to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.online/app/431946152/easy-way-to-get-free-robux-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/earn-rbx_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/pokemon-go-free-pokeballs_GM1094591345.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51B7 24836 bytes
SHA-256: cd01994123e066a7d1316d76b53125641a6e226d8ee8f7a3ab5fb35553119926
font_01_sfnt_off00008b20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B20 3400 bytes
SHA-256: 75c3a8e6f5c68e0746f893c922e57fd7e888a21fb038f9ae3eedb0a197a59e24
font_02_sfnt_off00009644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9644 18724 bytes
SHA-256: ff2b5f5648817baecf5754646eae61914eefadf3856a555e8e6cbc13d6b08405

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