Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0239bac925b8d05…

MALICIOUS

PDF

33.6 KB Created: 2021-06-30 02:13:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5aa92ec39e7d7072643559705a558a38 SHA-1: c72a3c069c3ae904c01f2df7d3f1671f4ac751d9 SHA-256: d0239bac925b8d05d79b50fd4155645d51b178ee55359d6b759632a49f29f231
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free Robux hack' which redirects to a malicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt to redirect users to potentially malicious content or download further 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.co/app/431946152/unlimited-robux-hack-pc-game-hack PDF link annotation
    • http://www.sscs-uae.com/userfiles/files/free-2021-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/how-to-hack-on-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/robux-free-roblox-glitch-2021_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/como-hackear-cuentas-en-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/money-hack-roblox-pastebin-leaderboard_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/roblox-alt-accounts-free_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/roblox-free-model-scripts_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/roblox-hacks-jailbrea_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/roblox-hack-free-unlimited_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/games-in-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/roblox-skins-girl-free-download_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/hacked-roblox-face_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/youtube-hack-any-roblox-account-no-loading_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/free-robux-generator-no-human-verification-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/how-to-not-get-hacked-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/hack-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/domino-crown-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/free-things-roblox_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/hackcom-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.sscs-uae.com/userfiles/files/aimbow-hack-fr-roblox-strucid_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_off00002eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDA 21168 bytes
SHA-256: 3cd723e77399944c39019a3efff6bc71281fd6f3c0006b6f415f50ee9c6a65bf
font_01_sfnt_off00005ca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA2 19608 bytes
SHA-256: 7358a569d08f2d26303f6c1e0d7cf0d2bfdfe96c94ecaad83eeb333575000675

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