MALICIOUS — robux-hack-2021_GM431946152.pdf

MALICIOUS — robux-hack-2021_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (75/100). 5 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: f1a9cac8cf1f0eb4976b4a69f4a6bb9df2c17cd18ee0bb42bf5439e95b00171d
• SHA-1: 4f15cefeadc0b156905af1a68a2428ca0623d816
• MD5: 1cf4432133a4a3a46a5e23eb565d88d9
• ssdeep: 768:pUPz3Uy2Ps23hfJuvlgLfHulzFh/vLTRf7:izz+Rhu2LfOlzFh/jTRf7
• TLSH: T1F6306BF301C7DC1C7A4B4B43AA7A107968CAD3D97466CF5088D8773C94BC5AEAB10926
• Submitted as: robux-hack-2021_GM431946152.pdf
• File type: pdf · Size: 36107 bytes
• Verdict: malicious (75/100)

Detections (5 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Microsoft Defender: Trojan:PDF/Phish.CFN!MTB
• Emsisoft (Emergency Kit): PDF.Spam.Heur.2
• Trellix Stinger (McAfee): PDF/Phish-TWM!1CF4432133A4
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1566.002

Why this verdict

The malicious score of 75/100 is the fusion of 4 weighted signals:

• Embedded link rated malicious by URL analysis: http://www.ck-ceramic.com/Public/upload/editorfiles/https-rbx-place-rewards_GM431946152.pdf - network signal, weight 0.70, confidence 0.80
• Embedded network infrastructure: http://netcdn.tw/app/431946152/robux-hack-2021-game-hack, http://www.ck-ceramic.com/Public/upload/editorfiles/free-robux-only-username-no-human-verification_GM431946152.pdf, http://www.ck-ceramic.com/Public/upload/editorfiles/free-robux-quiz_GM431946152.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• http://netcdn.tw/app/431946152/robux-hack-2021-game-hack
• http://www.ck-ceramic.com/Public/upload/editorfiles/free-robux-only-username-no-human-verification_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/free-robux-quiz_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/free-robux-without-verification-2021_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/how-to-hack-into-someones-account-in-roblox-2021_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/bloxpage-free-robux_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/hacking-my-best-friends-roblox-account_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/roblox-login-hack_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/whats-a-code-for-roblox-to-get-free-robux_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/https-rbx-place-rewards_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/free-robux-100-working_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/minecraft-114-4-download_GM479516143.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/sonic-shirt-free-roblox_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/free-back-accessories-roblox_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/how-to-get-free-roblox-game-cards_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/daily-free-spins-on-coin-master_GM406889139.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/i-need-more-free-spins-on-coin-master_GM406889139.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/coin-master-hack-2021-android_GM406889139.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/roblox-build-a-boat-for-treasure-hack-script-pastebin_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/como-hackear-tener-robux-gratis-con-bots_GM431946152.pdf
• http://www.ck-ceramic.com/Public/upload/editorfiles/free-coin-master-spins-2021-link_GM406889139.pdf

Embedded domains

• netcdn.tw
• www.ck-ceramic.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report