Malicious PDF — malware analysis report

Static analysis result for SHA-256 565b877250901a26…

MALICIOUS

PDF

48.7 KB Created: 2021-06-02 07:38:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b3fae70f3610ded409b6e6928f0670d2 SHA-1: b21fd8545810bba66e30eb762b3a95228ef7fd08 SHA-256: 565b877250901a26d2f48d32c7dd00d25d8a03f5dfe12effd395439bc65ef220
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains links designed to lure users into believing they can obtain free game currency or hacks, impersonating brands like Amazon. The primary link, https://netcdn.xyz/app/431946152/free-roblox-group-payouts-game-hack, redirects to a site offering game-related exploits. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a potential for exploitation or redirection to malicious content, likely involving JavaScript execution within the PDF viewer.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/free-roblox-group-payouts-game-hack.
  • 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/free-roblox-group-payouts-game-hack PDF link annotation
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/robux-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/roblox40com-robux_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/krnl-download_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://elearning.misalifadah.com/__statics/gudangsoal/files/free-robux-hack-us_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
font_00_sfnt_off000050c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50C3 26288 bytes
SHA-256: 931dee9290554ab033412cf5235b5126c6fb41f0bea2b122ac141ab55268a7f6
font_01_sfnt_off00008cb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB4 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off000099c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99C6 18928 bytes
SHA-256: 354c6af46d83080cf7be6e1aef8e1b316b9318cd1e94dcb2cdbd3cb92be869f5