Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3283d501db5e28…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 19:43:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 19332d7706932c8d92b9033bca7ebc2a SHA-1: 17ed0f16707ec53e716a607bc562ae97ffb57cf3 SHA-256: 4e3283d501db5e2846230f0b1c43801c383d892136a7a2387e951c8867ba407b
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/479516143/minecraft-18-9-hacked-client-game-hack PDF link annotation
    • http://sttlets.education/senayan//repository/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-hack-menu-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-100-real-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/cheat-rpg-world-roblox-script_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-remy-roblox-id_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-roblox-logins-password_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-roblox-codes-wiki_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-robux-in-games-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-free-clothes-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/easy-robux-today_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/paypal-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/hacks-for-roblox-couner-bloc_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_off00003007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3007 21484 bytes
SHA-256: a9a7bf15ebc889a3da6441e45612dec454f34a11c35abac626bbefefdbbc166b
font_01_sfnt_off00005f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F10 18756 bytes
SHA-256: bc7ce539429de417ba0394b3a553ba382b302f8472751b99fb4c21ca42080eae