Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec9056a9018eec5a…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 02:12:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8ff5b4aff8b24c29e115569a76c130a8 SHA-1: be6ff1b9292c86f61b109cf04429296798b8b3f1 SHA-256: ec9056a9018eec5a99188c359a455ac60d9b0045bad46eb8ec420ba087eda39f
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/free-robux-com-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/execute-freerobux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/get-free-bc-tbc-obc-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-noclip-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-how-to-cheat-on-tycoon-games-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/money-hack-ultimate-driving-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hack-kick-gui-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/money-hack-restaurant-tycoon-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-noclip-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-tattoos-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-cool-stuff-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-skin-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hacks-for-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-access-the-studio-of-a-roblox-game-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBB 23352 bytes
SHA-256: 281eccd45279e25069430dae3039b30bba4663af4cb268aae6eb0bb9d2626af7
font_01_sfnt_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 18976 bytes
SHA-256: 20782bd0acfe52469dc9f14a315b4aee1c9563688044d1d6d3a516ef71528a8c

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