Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b49c98f57d22d0c…

MALICIOUS

PDF

35.4 KB Created: 2021-06-29 20:15:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 105df58055851cb6245d57cb965d63a9 SHA-1: 69f352603f2e0cfcea20148d41db298556e88e90 SHA-256: 9b49c98f57d22d0cc59569e8a2f37c52dc9bdf59bdd5ce4f8a3bbed14764814c
82 Risk Score

Malware Insights

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

The PDF document contains numerous links and references to game hacks and cheats for popular games, specifically targeting users interested in obtaining in-game currency or advantages. The primary URL, http://netcdn.co/app/431946152/executor-hack-for-roblox-game-hack, is directly associated with a 'game hack' lure, indicating a likely attempt to redirect users to a malicious download or exploit site. The ML classifier also strongly flagged this PDF as malicious.

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/executor-hack-for-roblox-game-hack PDF link annotation
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/can-i-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/infinite-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/cheat-engine-63-roblox-tycoon-hacks_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-robux-hack-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/roblox-speed-hack-feb-10_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-roblox-codes_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-robux-voucher-codes_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-gui-roblox_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/how-to-find-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/hack-roblox-cs-go-2021_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/tiktok-free-view-pro-app-download_GM835599320.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_off00003285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3285 22700 bytes
SHA-256: 6e40af6314e39f91ddb3cf632742a778874c981d86c71a41f6818848bf14a1f7
font_01_sfnt_off0000652e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652E 19064 bytes
SHA-256: 25473184cc67f8249676b0d7f57d960836606b20324e84fc3b69cd1a07d58cb0

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