Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cb997be8db757e3…

MALICIOUS

PDF

44.0 KB Created: 2021-05-10 21:31:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0e0ee6af9f1a805e5dd4e98aa13fb5b2 SHA-1: 05297c64e2aab9222784b2ecfd3af2d1aa63b5ca SHA-256: 5cb997be8db757e34ccfd9fb68c6fada59aaff3d59d5c0d15c0012336347f52a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free currency, directing users to external URLs. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URIs and a visual download button lure further support a malicious intent. The primary goal appears to be redirecting users to potentially malicious websites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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/431946152/free-roblox-website-game-hack PDF link annotation
    • http://adveos.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/coin-spin_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/add-robux_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/free-800-robux_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
    • http://adveos.com/images/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://adveos.com/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://adveos.com/images/free-minecraft-thumbnails_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
stream_003_off00004cea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CEA 26508 bytes
SHA-256: f17fe738debdaff6d503bd5769c91b23a230d3ffe11d4ae83b545254ea1a8c47
font_01_sfnt_off00008951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8951 18372 bytes
SHA-256: 4f49704c3d2016fd3d486e698c5af7a9a5561cf776b84bb9dfcb3ffa887994c7

Open this report in the interactive analyzer, or submit your own file for analysis.