Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b8b9253c3f171f0…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 16:14:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 185cd337b7452155c58eff5c89694170 SHA-1: 4652f3bbab95a2d62bf42328a2c0ce0e49ccecb5 SHA-256: 6b8b9253c3f171f00707b5cbb6ecc8d6515cdb8bc3ad8f358344774ffd194d65
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'How To Hack Roblox Games' and includes a direct link to a website that appears to host game-related exploits or generators. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple embedded URLs reinforces the malicious intent. The document's primary function is to redirect users to a potentially harmful external site.

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-hack-roblox-games-and-to-run-fast-game-hack PDF link annotation
    • https://goodtools.tw/upload/files/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-robux_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-tracker_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-dinosaurs-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/coin-master-new-link-free-spin_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/counter-blox-roblox-offensive-hacks-tutorial_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/tiktok-free-palestine_GM835599320.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-free-pets_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off0000306e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306E 21752 bytes
SHA-256: c11a8b3fd38258e4147fd75c5487b52ce782c3064bcf55ed77a442838c61b467
font_01_sfnt_off00006038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6038 19476 bytes
SHA-256: f34e88386586747b0f72be660ffb2dc4c471f9c821a1d5a9f88c569ee058d5c0

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