Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4b291b857f0345…

MALICIOUS

PDF

40.2 KB Created: 2021-05-21 15:03:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 10058777eb9ab1bbf5b948533a221c45 SHA-1: a9db159f87439fbab80ce4c71f2695f4098ce572 SHA-256: fe4b291b857f03453f20280f4562613dc503ad00e2d2d76aa7537ab8897eecad
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and generators, such as 'apps-to-get-free-robux-game-hack'. The document body explicitly mentions 'Apps To Get Free Robux' and includes a call to action to access a 'ROBLOX GENERATOR'. This indicates a social engineering lure to trick users into visiting potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7885

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/apps-to-get-free-robux-game-hack PDF link annotation
    • http://ilijakom.com/images/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • http://ilijakom.com/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ilijakom.com/images/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://ilijakom.com/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://ilijakom.com/images/free-tiktok-coins_GM835599320.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
font_00_sfnt_off00003065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3065 27188 bytes
SHA-256: f769f3b8e197e617b65f6382b8b81c20b0b420c6c5c2523cf96a2e54f2b9ae42
font_01_sfnt_off00006f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F15 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00007bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBC 18292 bytes
SHA-256: b4e5860ebf2343f9b18b94d86a305cbc7e8ebd2f2a6bfe7ceeed88b67548d8bf

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