Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eabb1ed6eeb166a…

MALICIOUS

PDF

34.8 KB Created: 2021-06-21 13:29:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d411743374cadb0754882e1da735e07c SHA-1: bcc407ab0b474714d434105b0c8bd47c3781620a SHA-256: 9eabb1ed6eeb166aa6e51e1be74270f2255a1ec8ca606732b39201be79301a39
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that promotes 'free Robux' and game hacks, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests it is designed to redirect users to potentially harmful sites. Although no scripts were extracted, the overall pattern points to a social engineering attack aimed at tricking users into downloading malware or providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/free-robux-gift-card-codes-2021-unused-game-hack
    • http://clinicamanila.com/ckfinder/userfiles/files/how-to-get-free-robux-with-no-verification_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/lazy-blocks-com-free-robux_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/master-coin-hack-apk_GM406889139.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/how-to-download-minecraft-hacks_GM479516143.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/robux-generator-without-human-verification_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/roblox-script-hacks_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/free-face-roblox_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/coin-master-heaven-free-spins_GM406889139.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/free-stuff-on-roblox-2021_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/free-minecraft-skin-creator_GM479516143.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/coin-master-online-free-spin_GM406889139.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/coin-master-free-spins-link-download-hack_GM406889139.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/will-minecraft-dungeons-be-free_GM479516143.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/download-hack-coin-master-apk_GM406889139.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/coin-master-free-mighty-lion-card_GM406889139.pdf
    • http://clinicamanila.com/ckfinder/userfiles/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003163.bin
682697a29a58dd2446dd271d7ae1cf6946a35bdfa14d651011af9366365a2a6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3163 21728 bytes
font_01_sfnt_off00006155.bin
fba05de39af7e0e5cc2095a5837e8ddb0aa7aadfa194c59cf4ac5e1874220883		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6155 19516 bytes

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