Malicious PDF — malware analysis report

Static analysis result for SHA-256 32393686b6fd8999…

MALICIOUS

PDF

35.5 KB Created: 2021-07-08 19:20:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 944707dab4d57c31451258a142ad8ad1 SHA-1: 12857beaa3b26b02bd59e8ee49d883af9ac77fd8 SHA-256: 32393686b6fd8999f6908df63f743c2b1b3689f08c9d0db3662eccdd8bfb1024
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/how-to-hack-someones-account-on-roblox-game-hack PDF link annotation
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/grab-points-login_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-pins-for-roblox_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/freespinandcoin_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/como-hackear-una-cuenta-de-roblox-2021_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-ban-someone-with-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verfacation-no-survey_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_off0000330a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330A 22336 bytes
SHA-256: eaa2fead55e03c3f966035ea4f31a188cbb01cc2357d60c4f539639e1c17774e
font_01_sfnt_off000064c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C4 19324 bytes
SHA-256: 28ba82939c936f9b01a7caeed75c50b5986faeea817d1276e3bf1f7a5f42653e

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