Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f66925fab2ecfa9…

MALICIOUS

PDF

34.8 KB Created: 2021-06-18 11:16:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 392ef2ab4b8d1768266b7fcc1b477125 SHA-1: 6768cf5a74a4c7127e8b0a942e0fde84b7035609 SHA-256: 7f66925fab2ecfa95c8d998d2455325df88374cb96043aaea9cb8b51cfdf1c29
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and text related to hacking online game accounts, specifically Roblox and TikTok. The presence of an external URI and the ML classifier's high confidence score indicate malicious intent. The document likely serves as a lure to download a second-stage payload from the embedded URLs, potentially leading to credential theft or malware installation.

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/how-to-hack-roblox-accounts-on-iphone-game-hack PDF link annotation
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/old-roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/can-i-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-roblox-accounts-that-work-2021_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-robux-hacker-com_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/hack-de-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/the-unique-game-give-you-free-robux-no-pass-word_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-account-in-roblox-password-and-username_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-roblox-codes-for-clothes_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/epic-minigames-roblox-hack_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-roblox-interview-center_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/homo-jews-hacking-for-roblox_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-hack-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/dayz-og-roblox-cheat-codes_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_off00003069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3069 22476 bytes
SHA-256: eaa0119d46dbaae3af285d1b8a13eef59b925a7e9db47f4d4386b0a3f2f54436
font_01_sfnt_off00006279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6279 19220 bytes
SHA-256: ca12fe6f5a4c28a5c73dd8a2adb25af7fcc9d4eec79cc88b7ebe50d8c42d160f

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