Malicious PDF — malware analysis report

Static analysis result for SHA-256 930d69cffeb56617…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 22:26:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f8cb4a81de2e5ff5c50f57f82db8c1c7 SHA-1: c91a8f226a293cf6a05dc77c72209cb99643dd4b SHA-256: 930d69cffeb566174236d0be27a101d13bcf979dbc74f87cee734eb6f3223736
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links and a call-to-action lure related to game hacks and free currency, specifically targeting Robux. The primary link, http://netcdn.tw/app/431946152/robux-codes-free-bots-allowed-game-hack, is flagged as a game hack redirector, indicating a likely attempt to lead the user to a malicious site for further exploitation or credential harvesting.

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/431946152/robux-codes-free-bots-allowed-game-hack PDF link annotation
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/optifine-mcpe_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/moon-active-games_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-robux-hack-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/eating-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/cracked-free-roblox_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-hack-robux-2021-on-ipad_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/roblox-hack-cleints_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-stop-attack-hack_GM406889139.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_off00003029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3029 21892 bytes
SHA-256: 20cb1c6ae409eeefda761ea3ab42a777ef5bbd2e49348a8e84d490ebb63357aa
font_01_sfnt_off000060da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DA 19044 bytes
SHA-256: 9a5edb2adf7a301468649978a79cf26e3bdeb5586bf0751101cc087d004b8f64

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