Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d11eb94fb707610…

MALICIOUS

PDF

36.4 KB Created: 2021-07-04 02:31:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 197aa53f892f5503cf9b8131cdaeb4f9 SHA-1: 14c163a92a54b7d87b1ca038fbfab609904a9487 SHA-256: 0d11eb94fb7076100db5a9b94d1d50462a2aa994ebbd4395653b690f65317b57
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a document body that promotes free in-game currency and cheats for popular games like Coin Master and Roblox. The heuristic firings indicate the presence of external URIs and a visual download lure, suggesting the document is designed to trick users into visiting malicious sites. The ML classifier strongly flagged this PDF as malicious, increasing confidence in its malicious intent.

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.tw/app/406889139/daily-coin-master-free-spin-link-game-hack
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/free-robux-com-no-verification_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/how-do-we-get-free-robux_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/gravity-roblox-cheat_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/hack-roblox-accounts-free-2021_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/hack-free-spin-coin-master_GM406889139.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/hacks-roblox-jailbreak-mode_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/free-robux-glitch_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-cheat-codes-free_GM406889139.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/roblox-hacked-accounts-list_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/minecraft-iphone-free_GM479516143.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/rbx-roblox_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/hack-skin-roblox-free_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-hack-apk-online_GM406889139.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/roblox-free-clothes-generator_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/coin-master-gold-cards-free_GM406889139.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/best-free-minecraft-hacked-client_GM479516143.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/free-roblox-thumbnails_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/how-to-win-free-robux_GM431946152.pdf
    • http://royalindianjourney.co.in/uploaded_files/userfiles/files/spin-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000351d.bin
8d0b57df2edb4e1870baf7d658f097d282b84bdeafd489b50ab695ef6b3b4b3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x351D 23524 bytes
font_01_sfnt_off00006a82.bin
6995f58a3344afdf1c39eea442142c3f86a5b05fd2aa483286546d573d63d37d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A82 18768 bytes

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