Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd236aa4365e16a4…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 23:52:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 69443661733454b3c25a8e7919ef0932 SHA-1: bd76b89c2c7fdfcbf254f21ac72f5d43e16889bd SHA-256: dd236aa4365e16a49e9644d43cbfb2bdf3b8b011c3ed146373cdd4dd8a08acfb
82 Risk Score

Malware Insights

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

This PDF document contains multiple links to websites offering game hacks and free currency, such as 'i-need-robux-game-hack'. The ML classifier strongly indicated maliciousness, and the heuristics confirm the use of a game hack lure to redirect users. While no scripts were directly extracted, the nature of the lures suggests an attempt to drive users to malicious sites that may host further exploits or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/i-need-robux-game-hack PDF link annotation
    • http://www.inoxograde.hr/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-robux-web-store_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-game-unlock-roblox_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/roblox-free-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.inoxograde.hr/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-roblox-accounts-2021-june_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/buy-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/roblox-cheat-engine-admin-commands-hack_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/robux-redeem_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/multiple-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.inoxograde.hr/files/free-roblox-promo-codes-2021-april_GM431946152.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_off00003151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3151 22164 bytes
SHA-256: 11deaba98a5b8c3823c3ce28caa2d593d0dcaed2995d0cda3617aebf1bcecd69
font_01_sfnt_off00006245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6245 18728 bytes
SHA-256: 781b6f361de12558180ab6156a49b669cea89b8cb2b086f0d5291a085f2ed091

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