Malicious PDF — malware analysis report

Static analysis result for SHA-256 197ab69dcac7b5e6…

MALICIOUS

PDF

41.1 KB Created: 2021-04-22 20:30:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d4450fb0293f8fc36bdc42b26d988d7b SHA-1: 7a5f9c69d25e1d288065a51409c10c8522760a8a SHA-256: 197ab69dcac7b5e673d8edca2ed2ecd98286eb5f4031ad966706922b9fc8a602
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/roblox-royale-high-for-free-game-hack PDF link annotation
    • http://www.dynamitbogen.dk/billeder/roblox-download-free-microsoft.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/roblox-tycoon-money-hack-no-cheat-engine.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/lol-robloxcant-patch-the-free-robux.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/free-model-roblox-eggs.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/how-to-hack-roblox-accounts-with-command-prompt.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/cheat-roblox-jailbreak-tembus-2021.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/roblox-play-for-free-online-no-download.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/how-to-get-free-robux-landonrb.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/roblox-hacks-dll-downloads.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/cheat-engine-roblox-weight-lifting-simulator.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_off000040a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40A8 25932 bytes
SHA-256: 905582b9c33e48f5d1abc9d1cdec9907cd7210b5e1c2e3bc1f5316d69c3e7d50
font_01_sfnt_off00007d27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D27 18932 bytes
SHA-256: 075e282eaa994eb5514b211fcafce3078bc62b1c88b7bf1e4fa6c90d39770825

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