Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e894f820fcbd4ea…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 02:29:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a3e1942329a994f35f64319332a8efc1 SHA-1: 9bad855af05ad0d3fb4065b80821f34e02ab0dec SHA-256: 7e894f820fcbd4eadab1b0f40d52802d6934c8ceb25ad53a1a4e466594007630
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux and game hacks, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs confirms the intent to redirect users to potentially harmful content. No scripts were extracted from this sample, but the document's structure and embedded links are designed to trick users into visiting a site that likely hosts further malicious content or exploits.

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/how-to-get-free-robux-without-email-game-hack PDF link annotation
    • http://elib.acls-indonesia.com/repository/gaming-tutorials-com-robux-cheat_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/how-to-get-free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/hacking-client-roblox_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/how-to-get-free-doge-hat-in-roblox_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-hack-kick_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-arsenal-hacks-free_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-coin-master-s_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-camera-roblox_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/robux-hack-script-for-free-robux_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/is-there-an-actual-real-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/pokemon-go-free-trainer-codes_GM1094591345.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/money-hack-western-frontier-roblox_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-password-hacker-august-2021_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-jailbreak-cheats-download_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/android-coin-master-3433-apk-hack_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-free-download-ios_GM479516143.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_off00002fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC8 22652 bytes
SHA-256: 7392c3ecee0d8818b15279a943951630895b9c2eda30647785bd107569a5e5cf
font_01_sfnt_off0000626b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626B 19800 bytes
SHA-256: 7cc36b060554649fa6389e53221d06b2ae285b8e0623c743bba4dd7e0ab481d9

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