Malicious PDF — malware analysis report

Static analysis result for SHA-256 e91e2f046146d00f…

MALICIOUS

PDF

47.6 KB Created: 2021-05-14 15:28:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 84218e6c48ffaea382560cccf60f2d58 SHA-1: 313ace6e7a3ec489e59926ae009fed60ce6cc638 SHA-256: e91e2f046146d00faa6b7c442ecaedae73a68eb11f855e91fc9edc1c769a3473
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency and hacks, directing users to external URLs. The primary malicious URL identified is 'https://netcdn.xyz/app/406889139/free-spin-coin-game-hack'. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or redirection attempt, likely to download further malicious content or lead to a scam. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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 https://netcdn.xyz/app/406889139/free-spin-coin-game-hack PDF link annotation
    • http://lepatrimoinedesvallees.fr/images/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/coin-master_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/earn-rbx_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/get-robux_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://lepatrimoinedesvallees.fr/images/free-robux-instantly_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
stream_003_off00004c75.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C75 24984 bytes
SHA-256: ba1cc1204d4f1f538675a388b38410f19b0bf50a2c2356d7e5a5c66183c3b3be
font_01_sfnt_off0000857b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x857B 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_02_sfnt_off00009a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A06 17552 bytes
SHA-256: 1253d7eaf8f5164397dbb1e7af89d7368851d27808cb823deec5c99b72de06bf

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