Malicious PDF — malware analysis report

Static analysis result for SHA-256 f273c2d246a0f773…

MALICIOUS

PDF

45.6 KB Created: 2021-05-14 19:34:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6d01ffee5958d691f90d955556e1be56 SHA-1: 62d9a4be0f7ac4610b4082eb055654b1ae18900f SHA-256: f273c2d246a0f7735339c414248349984fee0eff701e2dc62937416ea37570ca
70 Risk Score

Malware Insights

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

This PDF document contains embedded JavaScript, which is often used to exploit PDF vulnerabilities or redirect users to malicious websites. The document body and extracted URLs suggest a lure related to game hacks ('Minecraft Life Hacks', 'free robux', 'free spins'), aiming to trick users into downloading further malicious content. The presence of a "download button" heuristic and a callback phishing lure further supports a malicious intent to deceive users into executing harmful code or engaging with a scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 5

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/479516143/minecraft-life-hacks-game-hack
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/how-to-get-free-roblox-money_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/bloxland-earn-free-robux_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/minecraft-hacker-mask_GM479516143.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/bux-gg-robux-free_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/haktuts-coin-master-today_GM406889139.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/twitter-coin-master-free-spins-link_GM406889139.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/hack-master-coin_GM406889139.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/free-robux-app-real_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/free-robux-apps-that-work_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/free-robux-without-any-verification_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/multiplayer-master-hack-coins_GM406889139.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/roblox-fun-com-free-robux_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/minecraft-pe-apk_GM479516143.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/free-robux-generator-2021_GM431946152.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/minecraft-windows-10-edition-free-download_GM479516143.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/free-coin-master-cards_GM406889139.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/minecraft-the-complete-handbook-collection_GM479516143.pdf
    • http://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/free-spin-links-coin-master-october-30-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004f1e.bin
1176784f622afed4ed865b852415aad38d2aa742713d3b7dedc6b973d1ef4003		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F1E 24936 bytes
font_01_sfnt_off000087c3.bin
94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87C3 2824 bytes
font_02_sfnt_off00009172.bin
a9f228f82f523f82f2ec29969fa693daed0cd9273bc8dad9e6ca4184f04ba0fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9172 17740 bytes

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