Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf6eb66bf88ca33d…

MALICIOUS

PDF

44.9 KB Created: 2021-05-17 09:45:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 65ac54de42b6ef2d9598481e99412ebd SHA-1: d1ebee6bea2fdda90b0b4e638745fa48d2369f16 SHA-256: cf6eb66bf88ca33de505521aafb487dbd063092acaaa51dc582196b99406528d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and lures users with the promise of 'free Robux' and game hacks, indicating a phishing or scam attempt. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests this malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure point towards a potential download or redirection to a malicious site.

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 https://netcdn.xyz/app/431946152/free-robux-human-verification-game-hack PDF link annotation
    • http://nebraskahospitalityhalloffame.com/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-116-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-hack-no-human-verification-2021_GM406889139.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_off00004a2c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A2C 28312 bytes
SHA-256: 711a574bc0383d4c7967852d914b955aed2a4e39f95975576e97af502199de6c
font_01_sfnt_off00008b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B83 18860 bytes
SHA-256: 3ed55990981222bb3dfa17f7dde8eecdc80202874b70715493d2aac032643dcf

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