Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbffc349346bc218…

MALICIOUS

PDF

45.1 KB Created: 2021-05-19 21:13:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cba20aee76624ae991d8fb3480c9255b SHA-1: 53180742e699f3b9929d608d119aff3093aac6b1 SHA-256: bbffc349346bc218c0d518bc61a7554aab2a7a9836e2e4ee877130cc1bffadc0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which redirects to a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to trick users into visiting a potentially harmful site, likely for credential harvesting or malware distribution. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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/479516143/minecraft-noob-vs-pro-vs-hacker-vs-god-game-hack PDF link annotation
    • http://www.eaapiaria.es/images/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/coin-master-free-spins-ios_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/robux-in_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/get-robux_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/google-moon-active_GM406889139.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.eaapiaria.es/images/free-spins-coin-master-hack-2021_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_off0000493e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x493E 25664 bytes
SHA-256: 93e2b82a409e16f6a977db58fd808e312e83464996d8ec84291c4bea2305cecb
font_01_sfnt_off0000839d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x839D 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D4E 18500 bytes
SHA-256: 35163f059b41a7a3602679841a335cd83055ee85c0a72342166b4475486ea273

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