SUSPICIOUS — free-robux-human-verification_GM431946152.pdf

SUSPICIOUS — free-robux-human-verification_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: 298146458ad073d5d53cac128819343241148a5560c8db0dcf8d513070d90d9c
• SHA-1: 75e3b63f5ddb2c51d8107fd3c8b4bb544fc82451
• MD5: 64c41d7921d2c370ca0e8f15e0164c38
• ssdeep: 768:mIXywtbH+BEQ7+1sn5kY/adCc83DJHSOhQ+kO0vpA6D:m0Pkh+Sa1ANhj0+6D
• TLSH: T116307CF7409BDC4C368A9F536877212D74C9E3892822D94096DCB27C846DEFD7B60862
• Submitted as: free-robux-human-verification_GM431946152.pdf
• File type: pdf · Size: 36875 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!64C41D7921D2
• 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://perpustakaan.pn-tapaktuan.go.id/repository/rbx-land-free-robux_GM431946152.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://netcdn.tw/app/431946152/free-robux-human-verification-game-hack, http://perpustakaan.pn-tapaktuan.go.id/repository/rbx-land-free-robux_GM431946152.pdf, http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-too-no-verification_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-human-verification-game-hack
• http://perpustakaan.pn-tapaktuan.go.id/repository/rbx-land-free-robux_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-too-no-verification_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-free-spins-and-coins-hack_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/roblox-hack-generator_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/get-free-robux-with-promocodes_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/roblox-hack-free-unlimited-robux_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/how-to-make-a-minecraft-server-for-free_GM479516143.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/roblox-hack-apk-no-survey_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/roblox-hacks-2021-cheats-explosits_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-free-online-game_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-hack-quora_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/robux-hack-2021-october_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/bad-business-roblox-cheats_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-no-human-verification-generator_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/roblox-cheat-codes-for-robux-2021_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-free-spins-hack_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-minecraft-server-maker_GM479516143.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-without-human-verification_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-codes-no-verification-2021_GM431946152.pdf

Embedded domains

• netcdn.tw
• perpustakaan.pn-tapaktuan.go.id

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report