Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddbeaea6dd94b98…

MALICIOUS

PDF

46.0 KB Created: 2021-05-16 00:36:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 53397ec41407a2d676cfe0d7ef7d90f0 SHA-1: 26688a8c379eb9947655e7c37427cb653a5e1472 SHA-256: 3ddbeaea6dd94b983bd38a57907db44da099a36c6dfd8ac19c7f81b3e828468d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to sites offering game hacks, such as 'aimbot-download-roblox-game-hack'. This lure is designed to trick users into downloading potentially malicious software. The ML classifier also flagged this PDF as malicious, increasing confidence in its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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 https://netcdn.xyz/app/431946152/aimbot-download-roblox-game-hack PDF link annotation
    • http://www.eucorro.com/arquivos/files/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/20-free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/roblox-old-avatar_GM431946152.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://www.eucorro.com/arquivos/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b0d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B0D 24860 bytes
SHA-256: 66d766fe2d5a181bfc7c02f6f2d3011b3c32ac77942c9858373655e2e4baf35f
font_01_sfnt_off000082a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A6 3464 bytes
SHA-256: 8e24205afdd13dcdea98f8150ef77dee4030e0e50a7c748783d1b4598e034a20
font_02_sfnt_off00008edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EDC 19000 bytes
SHA-256: 7d611a1d50564430ff0519ba238feadb200c8b25cb84a0d6ab1661790e5ed700

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