Malicious PDF — malware analysis report

Static analysis result for SHA-256 80c029ffdad774d0…

MALICIOUS

PDF

40.0 KB Created: 2021-04-22 20:22:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 256eaae602f3f577a4965343a55535ac SHA-1: f03f4b217f3ff7c3f249fbc145389b8423008c9e SHA-256: 80c029ffdad774d02729d0b2c0e1aa762c858078357157bb08934a3b99cc06a2
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/hacker-robux-2021-game-hack PDF link annotation
    • http://www.dynamitbogen.dk/billeder/roblox-tycoon-money-hack-no-cheat-engine.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-2021-not-patched-read-desc.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/admin-commands-roblox-free-robux.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/cheat-engine-roblox-weight-lifting-simulator.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/how-to-hack-roblox-for-rebirth.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/roblox-all-free-items-list.pdfIn PDF document text
    • http://www.dynamitbogen.dk/billeder/roblox-hacks-dll-downloads.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://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004053.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4053 25572 bytes
SHA-256: 5f7b7a477a10c620ce21e807f17a07a61d4a15802445f4e6908af985eb2e4395
font_01_sfnt_off000078f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F5 18648 bytes
SHA-256: 6db061c58fac3dc0395e882ea65f14daa42517b8737d2aef86700e45bbec7fce

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