SUSPICIOUS — how-to-get-free-robux-games_GM431946152.pdf

SUSPICIOUS — how-to-get-free-robux-games_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (68/100). 5 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 3c52a88593a3e7db5559d5d61253ecc8afb15dd111c0c29cf0c4aa8a5ecad8f3
• SHA-1: 2f3250e3bc3ff5afbd3c39db1d53bf6726644039
• MD5: b8721bd23360f7de370624c2d58e0b4e
• ssdeep: 768:ZcXmMrCZwskFSKw+RiL6xzwELH6VgCDQMvXoNOEzf/OX3ydnfKXIZWotNp:ZcXmMrCUFBRimzwG6e4Q2YNOEzf/tdnl
• TLSH: T13D328DF709A7DD4C654B8B03587B115D7CCD92C830339B9546E8766C80BDAEEAB10A32
• Submitted as: how-to-get-free-robux-games_GM431946152.pdf
• File type: pdf · Size: 43975 bytes
• Verdict: suspicious (68/100)

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!B8721BD23360
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1112
• T1105

Why this verdict

The suspicious score of 68/100 is the fusion of 6 weighted signals:

• Contacted 19 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded network infrastructure: https://netcdn.xyz/app/431946152/how-to-get-free-robux-games-game-hack, http://ukrainiansofbuffalo.com/images/how-to-earn-robux-for-free-2021_GM431946152.pdf, http://ukrainiansofbuffalo.com/images/coin-master-free-coins-hack_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
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9712 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• c.pki.goog
• 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
• 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
• 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
• desktop-hsgcbep
• ntp.ubuntu.com
• 250.255.255.239.in-addr.arpa
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\3df28ddd24f9b80b45a20a8d7da2717c.png - 992a7e4c06c22990e6cb1cddf803cab65563a9f76ad1ddfd417601d18f72abc5
• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - 0b44181f707ab86cb3c14ad8250092725e6a68d114ef59da71012e1bf528c099
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://netcdn.xyz/app/431946152/how-to-get-free-robux-games-game-hack
• http://ukrainiansofbuffalo.com/images/how-to-earn-robux-for-free-2021_GM431946152.pdf
• http://ukrainiansofbuffalo.com/images/coin-master-free-coins-hack_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/do-coin-master-hacks-work_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/how-to-get-free-spins-on-coin-master-android_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/coin-master-daily-free-spins-link_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/how-to-buy-robux-for-free_GM431946152.pdf
• http://ukrainiansofbuffalo.com/images/coin-master-coins_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/coin-master-free-spin-and-coin_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/play-coin-master-for-free_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/how-to-get-free-robux-2021_GM431946152.pdf
• http://ukrainiansofbuffalo.com/images/coin-master-heaven-links_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/how-to-get-free-robux-codes_GM431946152.pdf
• http://ukrainiansofbuffalo.com/images/how-to-use-scripts-in-roblox-hack_GM431946152.pdf
• http://ukrainiansofbuffalo.com/images/coin-master-35-2-hack_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/free-robux-discord-servers_GM431946152.pdf
• http://ukrainiansofbuffalo.com/images/coin-master-free-gift-links-2021_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/coin-master-hack-tool-v1-9-download-free_GM406889139.pdf
• http://ukrainiansofbuffalo.com/images/free-robux-obby-2021_GM431946152.pdf
• http://ukrainiansofbuffalo.com/images/free-roblox-usernames-and-passwords_GM431946152.pdf
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com

Embedded domains

• netcdn.xyz
• ukrainiansofbuffalo.com

Embedded IP addresses

• 162.159.142.9
• 52.110.12.52
• 4.230.171.124
• 184.84.165.171
• 20.247.184.142
• 203.26.79.13
• 20.184.175.15
• 135.233.95.144
• 20.76.201.171
• 52.123.128.14
• 40.103.64.242
• 172.178.240.161
• 74.178.76.44
• 92.223.78.30
• 51.116.246.105
• 142.250.195.99
• 135.233.45.222
• 20.50.201.205
• 48.199.12.1

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report