SUSPICIOUS — free-coin-master-s_GM406889139.pdf

SUSPICIOUS — free-coin-master-s_GM406889139.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (66/100). 4 of 53 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: 3cddf255f26ea52bf0b03c2debac80dca6135d8234d4645bb54bb7d9f93dfd18
• SHA-1: a076501c950e2075c9bb1d6e012491ad1341fd71
• MD5: 062b7bd35489fb967213e01b6359b2f4
• ssdeep: 768:L5wIhJWvPLO6zRYWrOo4C3+tpEYEUFtE:9wIhuyM4C3+tdEUFtE
• TLSH: T11A2F7CF75057CD1C7A8AAF03DAB7516D74CBD6A83022DF1050D9766C90BC6AEAF00922
• Submitted as: free-coin-master-s_GM406889139.pdf
• File type: pdf · Size: 34447 bytes
• Verdict: suspicious (66/100)

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!062B7BD35489

MITRE ATT&CK

• T1112
• T1105
• T1566.002

Why this verdict

The suspicious score of 66/100 is the fusion of 7 weighted signals:

• Embedded link rated suspicious by URL analysis: http://library.futureuniversity.com/repository/minecraft-free-games-no-download_GM479516143.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://netcdn.tw/app/406889139/free-coin-master-s-game-hack, http://library.futureuniversity.com/repository/minecraft-free-games-no-download_GM479516143.pdf, http://library.futureuniversity.com/repository/life-hacks-for-robux_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 6 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)

9510 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• searchapp.bundleassets.example
• inference.location.live.net
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• 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
• 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
• 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
• 255.255.254.169.in-addr.arpa
• 251.0.0.224.in-addr.arpa
• 79.243.254.169.in-addr.arpa
• desktop-hsgcbep
• ntp.ubuntu.com
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 02ad80263e84e21d489e9a1dac6ab5e1d106d3e22b30f7cb64bcc5e36afd22cd
• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\3e9626dbb69c1f4982fa0f42ce9aab8a.png - cb6c145f0ca9aeaf8daa589562fb383623df4501c8a6dd1e4217274772db3131
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• http://netcdn.tw/app/406889139/free-coin-master-s-game-hack
• http://library.futureuniversity.com/repository/minecraft-free-games-no-download_GM479516143.pdf
• http://library.futureuniversity.com/repository/life-hacks-for-robux_GM431946152.pdf
• http://library.futureuniversity.com/repository/free-online-games-like-roblox-bloxburg_GM431946152.pdf
• http://library.futureuniversity.com/repository/coin-master-free-bonus_GM406889139.pdf
• http://library.futureuniversity.com/repository/free-coins-for-planet-master-game_GM406889139.pdf
• http://library.futureuniversity.com/repository/robux-free-promo-codes_GM431946152.pdf
• http://library.futureuniversity.com/repository/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdf
• http://library.futureuniversity.com/repository/minecraft-account-hacked_GM479516143.pdf
• http://library.futureuniversity.com/repository/reverse-a-roblox-hack_GM431946152.pdf
• http://library.futureuniversity.com/repository/10-dollar-roblox-card-free_GM431946152.pdf
• http://library.futureuniversity.com/repository/hacked-roblox-accounts-list_GM431946152.pdf
• http://library.futureuniversity.com/repository/free-robux-app-real_GM431946152.pdf
• http://library.futureuniversity.com/repository/how-to-get-a-free-golden-boombox-in-roblox_GM431946152.pdf
• http://library.futureuniversity.com/repository/free-robux-without-human-verification-real_GM431946152.pdf
• http://library.futureuniversity.com/repository/fortnite-simulator-hack-roblox_GM431946152.pdf
• http://library.futureuniversity.com/repository/free-premium-roblox_GM431946152.pdf
• http://library.futureuniversity.com/repository/robux-codes-free-2021_GM431946152.pdf
• http://library.futureuniversity.com/repository/roblox-download-free-coins_GM431946152.pdf
• http://library.futureuniversity.com/repository/roblox-hacked-servers_GM431946152.pdf
• http://library.futureuniversity.com/repository/www-free-robux_GM431946152.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• netcdn.tw
• library.futureuniversity.com

Embedded IP addresses

• 162.159.142.9
• 52.110.12.54
• 57.155.101.212
• 52.123.128.14
• 162.159.36.2
• 4.230.171.124

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report