MALICIOUS — i-need-robux_GM431946152.pdf

MALICIOUS — i-need-robux_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (95/100). 4 of 53 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: da5c02d05a2fe2ab3d548404e4c3f352f37a5de2b74679f15c76448635d20493
• SHA-1: 5ebad7982240218810f61c6255282d7a7d78dda8
• MD5: 8883ef55c5e112a0ed47a47ee65bc8dc
• ssdeep: 768:EYcPvQBgPxxuW/pe1wr+tArufiVk9Kf19anX5+BUm0sKl31hXYftrqo2lWlb:uuglrDlVkwfzeJ+BUeqFhIdlb
• TLSH: T199329EF351ABDD4C728B9B935CB521ADA98DD7882531CE0092C8B57CC06CEED7E50A60
• Submitted as: i-need-robux_GM431946152.pdf
• File type: pdf · Size: 47149 bytes
• Verdict: malicious (95/100)

Detections (4 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!8883EF55C5E1

MITRE ATT&CK

• T1112
• T1105
• T1566.002

Why this verdict

The malicious score of 95/100 is the fusion of 10 weighted signals:

• Microsoft Defender flagged Trojan:PDF/Phish.CFN!MTB (rule Trojan:PDF/Phish.CFN!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.2 (rule PDF.Spam.Heur.2) - engine signal, weight 0.55, confidence 0.85
• Trellix Stinger (McAfee) flagged PDF/Phish-TWM!8883EF55C5E1 (rule PDF/Phish-TWM!8883EF55C5E1) - engine signal, weight 0.55, confidence 0.85
• Embedded link rated suspicious by URL analysis: http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-codes-2021_GM431946152.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: https://netcdn.online/app/431946152/i-need-robux-game-hack, http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-codes-2021_GM431946152.pdf, http://perpustakaan.pn-tapaktuan.go.id/repository/roblox-games-with-free-vip-servers_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
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Contacted 13 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
• Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9575 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• searchapp.bundleassets.example
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 250.255.255.239.in-addr.arpa
• ntp.ubuntu.com
• desktop-hsgcbep
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• 199.232.138.172
• 23.11.37.157

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\0e2c3edb628ce038b3fe0b27fbca84a9.png - e30f1cebc2a15873c4afb10dc92baca10921902e6706fe7913cea83a2b0bb0ab
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 817a36df1d6ecba52a9d87282ca100757679743ef524e36e1076a188f914d89d
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://netcdn.online/app/431946152/i-need-robux-game-hack
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-codes-2021_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/roblox-games-with-free-vip-servers_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/how-to-get-free-robux_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/robux-hacks-2021_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/minecraft-pvp-hacks_GM479516143.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-rewards-2021_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-no-verification-2021_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/minecraft-pe-free-download-ios_GM479516143.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-hacks-to-get-spins_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-server-hack_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-games-that-actually-work_GM431946152.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/get-free-spins-coin-master-link_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/coin-master-free-cards-link-2021_GM406889139.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/minecraft-pe-apk-free-download_GM479516143.pdf
• http://perpustakaan.pn-tapaktuan.go.id/repository/free-robux-generator-no-verification_GM431946152.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

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

Embedded IP addresses

• 20.42.65.89
• 52.123.128.14
• 4.144.132.114
• 51.105.71.137
• 4.230.171.124
• 135.232.92.97
• 20.247.184.142
• 135.233.45.222
• 52.110.12.48
• 40.84.97.4
• 20.165.94.63
• 20.112.250.133
• 162.159.36.2

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report