SUSPICIOUS — rbx-fre-robux_GM431946152.pdf

SUSPICIOUS — rbx-fre-robux_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (58/100). 4 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 5d269a2ea6b7d9084db2805dde7b184eef473d5ca2c54b5e45e87544cf6e9fa4
• SHA-1: 8d80c1d788df888260e467f81bcd9d8be41cce1a
• MD5: a29447e3beb85f5265bd70f516ba43ec
• ssdeep: 768:ZLQYl5dQxsnDaWjstXpqVeVofH6FXDsEDOBp2wbWtx:XsQDpiXpweKvYXQEDOB7bWD
• TLSH: T1BF2F7DF3109BCC4C3A8B9F079DBB256934C6D78875329A1061C8BB3C81AD6EE6B11571
• Submitted as: rbx-fre-robux_GM431946152.pdf
• File type: pdf · Size: 35061 bytes
• Verdict: suspicious (58/100)

Detections (4 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Microsoft Defender: flagged
• Emsisoft (Emergency Kit): PDF.Spam.Heur.2
• Trellix Stinger (McAfee): PDF/Phish-TWM!A29447E3BEB8

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://lib.stie-aub.ac.id/repository/free-robux-apple-mac_GM431946152.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://netcdn.co/app/431946152/rbx-fre-robux-game-hack, http://lib.stie-aub.ac.id/repository/free-robux-apple-mac_GM431946152.pdf, http://lib.stie-aub.ac.id/repository/coin-master-free-coins-link_GM406889139.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.co/app/431946152/rbx-fre-robux-game-hack
• http://lib.stie-aub.ac.id/repository/free-robux-apple-mac_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/coin-master-free-coins-link_GM406889139.pdf
• http://lib.stie-aub.ac.id/repository/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdf
• http://lib.stie-aub.ac.id/repository/coin-master-32-mod-hack-unlimited_GM406889139.pdf
• http://lib.stie-aub.ac.id/repository/how-to-get-free-hair-on-roblox_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/roblox-hack-apk-download-android-1_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/roblox-hack-download-2021_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/dexen-hack-roblox_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/free-chain-download-for-roblox_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/free-spins-generated-from-coin-master_GM406889139.pdf
• http://lib.stie-aub.ac.id/repository/get-free-robux-com_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/roblox-best-free-lvl-6-executors_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/medival-gives-free-robux_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/get-a-free-dominus-from-roblox-toy_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/free-robux-promotion-codes_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/how-to-get-free-spins-on-coin-master-2021-iphone_GM406889139.pdf
• http://lib.stie-aub.ac.id/repository/does-getting-1-million-robux-for-free-work_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/free-robux-real_GM431946152.pdf
• http://lib.stie-aub.ac.id/repository/coin-master-hack-apk-no-survey_GM406889139.pdf
• http://lib.stie-aub.ac.id/repository/robux-offers_GM431946152.pdf

Embedded domains

• netcdn.co
• lib.stie-aub.ac.id

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report