Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfd8966b156d9463…

MALICIOUS

PDF

34.6 KB Created: 2021-06-26 17:11:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a98dd5d9dc8e0b67152805431205ec02 SHA-1: c839e7537bc6319cb6a3f76839e40f2b5ab9d5fd SHA-256: dfd8966b156d9463255711db357d9826bd50d47a298ed77876ff15ae2ccb8272
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body also contains this URL, suggesting the primary intent is to trick users into visiting a site promising free game items, which is a common lure for malware distribution or phishing. No scripts were extracted from this sample.

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/free-shirt-roblox-template-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hacker-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-wings-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/arsenal-hacks-roblox_GM431946152.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_off00002ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE6 22536 bytes
SHA-256: a4136e181e1b76b0a58ca8b4830cef78d8664ed20678ad9a21003aee4a099029
font_01_sfnt_off00006112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6112 19476 bytes
SHA-256: 1d03c0aa296d387b230a87d4e05bc0c42fcf4f1c660c0761a707f6444a16d864