Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e6cf5e34f4e223d…

MALICIOUS

PDF

34.0 KB Created: 2021-07-08 05:50:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8eb8d124666d56ffafe4e330c4784b61 SHA-1: f7352dfd67b2be312700460b579e54212ee41036 SHA-256: 4e6cf5e34f4e223d0b6fc0a522fe4b35a44185599ccd91869a1266d47e7cbfb8
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/406889139/free-spins-on-coin-master-game-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/roblox-fencing-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-play-for-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-roblox-more-than-20-letters-in-username_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-robux-hack-tool_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/youtube-inquisitormaster-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-script-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-robux-new-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-bubble-gum-simulator-steal-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/lots-of-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-someone-address-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-pants-download-free_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_off000030ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EA 22140 bytes
SHA-256: 658f02dfb680ce113676fadbdd7c41cb469a5cedcdbd5ad1f19caa5c2248b71b
font_01_sfnt_off000061fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FE 18432 bytes
SHA-256: 4593a1a2ad250b9c338d1094e610fce2cd2b7d4b85c0b8acce75d41d0f65b4d7

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