Malicious PDF — malware analysis report

Static analysis result for SHA-256 007db918d666f9c1…

MALICIOUS

PDF

42.9 KB Created: 2021-06-07 10:19:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 3cd20dadbb30799c99057d5a8199dc74 SHA-1: 59039d9baa9c96bf9f0e3f50d2d98f6ed68fbb26 SHA-256: 007db918d666f9c149713f08c4b7634ce2f477fc99b099c7e25a1336d12bd9b3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, specifically targeting users interested in game exploits. The document body also contains text related to 'Roblox Vip Gamepass Free Script Hack' and a call to action to access a 'ROBLOX GENERATOR'. This strongly suggests a social engineering lure designed to trick users into visiting a malicious website, likely presenting a fake CAPTCHA or human verification prompt to further deceive them into executing further malicious actions.

Machine Learning

  • Nyx PDF Classifier clean score 0.0285

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.tw/app/431946152/roblox-vip-gamepass-free-script-hack-game-hack PDF link annotation
    • 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_off00003b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B06 27116 bytes
SHA-256: 63727f083e4ba300521db42027fcd2a5ded0890c00bf85945496f5272d96f918
font_01_sfnt_off00007893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7893 3120 bytes
SHA-256: 49734f51977507cba6bc8d3ad0cee0363aa119856db094427deb9cf565bb7bca
font_02_sfnt_off000083a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A7 19140 bytes
SHA-256: eb3f7313baaa0ac89d2b9b98344fe7571c6124fa729e8687ed8e8e3b97517392

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