Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5873d9df73c80ac…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 10:31:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 26fa2f0f9ff7180ed2ea44f95cbeb5a0 SHA-1: 97b87c59f11e92ff7a6a52021d347d22f93a72ba SHA-256: e5873d9df73c80acf7f1f75f569b3e9cfef49be6f763b5b86687090a95d8bacc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a high-severity heuristic indicating it links to a game hack lure. The document body also contains the URL 'http://netcdn.co/app/431946152/roblox-apk-hack-2021-game-hack', which is presented as a download link. This suggests the document is designed to trick users into downloading potentially malicious software by promising game cheats.

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/roblox-apk-hack-2021-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-today_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-how-to-get-free-robux-unlimited-100-working_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-for-ninja-legends-roblox-download_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hacks-para-roblox-2021-jailbreak_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-promo-codes-2021-may_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/https-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-inappropriate_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-2021-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-system_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-a-cape-in-minecraft-for-free_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_off00003085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3085 21896 bytes
SHA-256: f82064ce7ed6e22e458758d40384320361ef6c8955606571f8ac7fa826712972
font_01_sfnt_off000060a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A0 19236 bytes
SHA-256: 5493c1ac42b642cd7476b3df3fb98d9e01e29a6e71b1b460c636136e93dec276

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