Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfc08cba9d3a9bc3…

MALICIOUS

PDF

45.3 KB Created: 2021-05-12 07:01:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c8803ba86aeee03df42b909c561a2976 SHA-1: d9fb3499c65256ab14a5d1be61fcaacfbc784e83 SHA-256: cfc08cba9d3a9bc3ca558cd7971c0e5f032cc4668a790cdbecd89dc6545752c4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/how-do-you-get-robux-on-roblox-game-hack PDF link annotation
    • http://xenonsvjetla.com/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/robux-redeem_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-level-4_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-heaven_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-ios-hack_GM406889139.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_off00004b06.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B06 24712 bytes
SHA-256: 0ee4e822af608c09c228162822ea0173ca57649c202543d0b31663f878be05d4
font_01_sfnt_off000083df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83DF 2824 bytes
SHA-256: bd082aa73fbb1a8b3bd2e5c998d3d8e31d1dfc71ea36f846af746f69a0d2ab7f
font_02_sfnt_off00008d92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D92 18520 bytes
SHA-256: 6cff786ebbe31f9ff1e85db23877156eec42a81d57e6ef62a0bd533977c3ab7f

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