Malicious PDF — malware analysis report

Static analysis result for SHA-256 366db89c356d34f3…

MALICIOUS

PDF

33.2 KB Created: 2021-07-04 08:55:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ea9940602bfb28caa10163e1cdd4d114 SHA-1: 3cbe94e22b7051b910970e37085589217a213399 SHA-256: 366db89c356d34f3b3af9513962eb244169e89dfb3ea5bdd96f15a43110a98eb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector. The document body and numerous extracted URLs reinforce this theme, pointing towards lures for game cheats or currency. The primary malicious URL identified is http://netcdn.tw/app/431946152/giftrobux-com-generator-game-hack, which likely serves as a gateway to a malicious payload or scam. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/431946152/giftrobux-com-generator-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/shark-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-para-canbiare-el-nombre-en-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/exploit-hack-roblox-free-download-mod-menu-pc_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/very-easy-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-hack-2021-december_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-speed-hack-for-pc_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/instant-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/rbx-sites_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-cheats-client_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pubg-uc-cheap-price_GM1330123889.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-on-roblox-december-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-studio-how-to-make-a-free-robux-game_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_off00002af6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF6 22508 bytes
SHA-256: d2fb87f809d32dab4d1a68fadaecc6ff7840a22354200dd8eb20f952da5a6225
font_01_sfnt_off00005d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D21 19036 bytes
SHA-256: 1141fcc85140b9719a6fea4718e7899b0e457e07d9cf7403d9a46b5858d368cb

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