SUSPICIOUS — free-robux-no-downloading-apps_GM431946152.pdf

SUSPICIOUS — free-robux-no-downloading-apps_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (58/100). 5 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 331f44a6dfe41f5ee70254730de6ad80f60d48656c4f56bc0bf4b7abe7de7916
• SHA-1: f54d7fa67b1c82483728ad19ea18a788fb0fd104
• MD5: 4a7553751e6fac9c2e7dde70c4e59906
• ssdeep: 768:O+u2e8g1s7hbIiKfZUxsonmDJH9lrF/OJfIUK4lC+:zu2eNKkfUsOmx9lJOJfIUrlC+
• TLSH: T1D1309EF74057CD1C39869B03AEBB506A6887D39931638A5560E4372EE07D7EEAB00631
• Submitted as: free-robux-no-downloading-apps_GM431946152.pdf
• File type: pdf · Size: 36405 bytes
• Verdict: suspicious (58/100)

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!4A7553751E6F
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1566.002

Why this verdict

The suspicious score of 58/100 is the fusion of 4 weighted signals:

• Embedded link rated suspicious by URL analysis: http://library.futureuniversity.com/repository/robux-hack-no-survey-no-password_GM431946152.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://netcdn.tw/app/431946152/free-robux-no-downloading-apps-game-hack, http://library.futureuniversity.com/repository/robux-hack-no-survey-no-password_GM431946152.pdf, http://library.futureuniversity.com/repository/freer-robux-codes_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/free-robux-no-downloading-apps-game-hack
• http://library.futureuniversity.com/repository/robux-hack-no-survey-no-password_GM431946152.pdf
• http://library.futureuniversity.com/repository/freer-robux-codes_GM431946152.pdf
• http://library.futureuniversity.com/repository/you-promised-my-son-free-robux_GM431946152.pdf
• http://library.futureuniversity.com/repository/roblox-egg-hunt-2021-free-to-take_GM431946152.pdf
• http://library.futureuniversity.com/repository/rbxoffers-earn-free-robux_GM431946152.pdf
• http://library.futureuniversity.com/repository/free-robux-cheat-no-survey_GM431946152.pdf
• http://library.futureuniversity.com/repository/roblox-hacking-apps-2021_GM431946152.pdf
• http://library.futureuniversity.com/repository/roblox-no-download-hack_GM431946152.pdf
• http://library.futureuniversity.com/repository/free-robux-gift-cards-no-human-verification_GM431946152.pdf
• http://library.futureuniversity.com/repository/bloxawards-com-earn-free-robux_GM431946152.pdf
• http://library.futureuniversity.com/repository/roblox-without-logging-in-free_GM431946152.pdf
• http://library.futureuniversity.com/repository/infinite-jump-wearedevs-roblox-hack_GM431946152.pdf
• http://library.futureuniversity.com/repository/hack-coin-master-for-android_GM406889139.pdf
• http://library.futureuniversity.com/repository/5-roblox-edit-this-cookie-hacks_GM431946152.pdf
• http://library.futureuniversity.com/repository/how-to-get-girl-hair-on-roblox-for-free_GM431946152.pdf
• http://library.futureuniversity.com/repository/free-robux-2021-no-verification_GM431946152.pdf
• http://library.futureuniversity.com/repository/free-robux-android-apps_GM431946152.pdf
• http://library.futureuniversity.com/repository/how-do-you-earn-robux-on-roblox_GM431946152.pdf
• http://library.futureuniversity.com/repository/roblox-free-robux-com_GM431946152.pdf
• http://library.futureuniversity.com/repository/roblox-exploit-level-7-free_GM431946152.pdf

Embedded domains

• netcdn.tw
• library.futureuniversity.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report