Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a211a8bfb251ef…

MALICIOUS

PDF

42.5 KB Created: 2021-04-23 13:23:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 972df3e42996f35e80ffb8afde250154 SHA-1: 07718f246ec61b947caab7ad09e50d97bbf70114 SHA-256: f6a211a8bfb251ef8ab3bf8b1544a13c0a4c461b8512e8a0402aa19e86cb05f6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to 'free Robux' and game hacks, directing users to the URL https://netsecure.top/app/431946152/how-to-get-free-2021-robux-game-hack. This URL is flagged as a high-risk redirector, indicating a likely attempt to deliver a malicious payload or phish for credentials. The presence of multiple PDF-related heuristics and embedded URLs further supports this malicious intent.

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.top/app/431946152/how-to-get-free-2021-robux-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/roblox-one-punch-man-cheat-engin.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-hack-client-android.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-2021-free-hat.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/synapse-roblox-free-2021.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-com-free-robux.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-play-roblox-for-free-online.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-roblox-promo-codes-that-work.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/como-tener-hacks-de-armas-en-roblox.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/counter-blox-roblox-offensive-cheats-download.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-with-adblocker.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_off000043cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43CC 26932 bytes
SHA-256: cb3ca35f43faf4a6c8bd2d5cb0755b5b862cc7f93c8ae00f6debcc5cc84d1d98
font_01_sfnt_off0000834d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834D 18684 bytes
SHA-256: de919c2df5e7ff23fa451933a428a1c1a75bfa650e70b36d9d2888a1c7856980

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