Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe0251bed63596f5…

MALICIOUS

PDF

40.7 KB Created: 2021-04-23 09:06:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4b591a83e5639a8886f33ca7643f7257 SHA-1: b2a7fc89d0d7aac2eac2051c0abd4212ce8ad57d SHA-256: fe0251bed63596f5af03c5a311388221cddd60514d6604d74c587aa40bc52cef
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 0.9941

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://netsecure.pro/app/431946152/how-to-get-free-robux-2021-february-game-hack PDF link annotation
    • http://blueduna.com/images/how-to-hack-roblox-accounts-2021-mac.pdfIn PDF document text
    • http://blueduna.com/images/speed-city-roblox-hack.pdfIn PDF document text
    • http://blueduna.com/images/old-roblox-hack.pdfIn PDF document text
    • http://blueduna.com/images/how-to-get-free-robux-on-ipad-no-human-verification.pdfIn PDF document text
    • http://blueduna.com/images/roblox-free-robux-hack-pc.pdfIn PDF document text
    • http://blueduna.com/images/will-roblox-be-for-free-when-it-come-to-ps4.pdfIn PDF document text
    • http://blueduna.com/images/hack-denisdaily-on-roblox.pdfIn PDF document text
    • http://blueduna.com/images/how-to-go-into-somenes-roblox-account-hack.pdfIn PDF document text
    • http://blueduna.com/images/comment-avoir-un-hacker-sur-jailbreak-roblox.pdfIn PDF document text
    • http://blueduna.com/images/how-to-get-free-robux-on-roblox-2021-hack.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
font_00_sfnt_off000040d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40D2 26888 bytes
SHA-256: 31243a15eb657b37a864a6c550ca3435bcd2ae04e3584f1ccbe85f5b9c4ed255
font_01_sfnt_off00007a94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A94 19092 bytes
SHA-256: a91e4c223d6c772ab16515bb8cba522cf83b7df476cd27896bff57e1410b8000

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