Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e56d9ffb15f59ce…

MALICIOUS

PDF

33.8 KB Created: 2021-06-19 12:36:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c78669dbcfa80c027d0062190d09eb54 SHA-1: 16b7c94f51a8c5ef0bdc8ed7fdc199cbdfb83a3d SHA-256: 3e56d9ffb15f59ce925fd6645e4c0e92bea0c5ee61c75436d60f66059d819f11
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.co/app/431946152/how-to-get-a-free-robux-gift-card-game-hack PDF link annotation
    • http://sv-nahetal.de/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-beautiful-hair-roblox_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/hack-roblox-jailbreak-2021-noclip_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-badge-hack_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-hack-apk-no-survey_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-do-i-change-my-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-redeem-codes_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_off00002dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDE 22084 bytes
SHA-256: 128ec263e9a01d21c5851b372f8d9d7485725abff611edd0489eb10c194ee733
font_01_sfnt_off00005ee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE5 19092 bytes
SHA-256: 64ca605dd134695f7211bdafde180258518e7f69f5a145e9a39d1da1b52291cf