Analysis
- max time kernel
145s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
23/07/2023, 02:49
General
- Target DiscordNitroGen.exe
- Size 60KB
- Sample230723-da3tdadf7v
- SHA256 58bd3bfdd4b83aaa9f723ee5c4a5d22b434074d7ad03f4729aba8ca7d6bb4cba
Malware Config
Signatures
- Nitro
A ransomware that demands Discord nitro gift codes to decrypt files.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Drops desktop.ini file(s) 5 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Sets desktop wallpaper using registry 2 TTPs 1 IoCs
- Program crash 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 43 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\DiscordNitroGen.exe"C:\Users\Admin\AppData\Local\Temp\DiscordNitroGen.exe"1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic csproduct get uuid3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4164 -s 21802⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4164 -s 21802⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4164 -ip 41641⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4164 -ip 41641⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4164-133-0x0000000000F50000-0x0000000000F66000-memory.dmp
memory/4164-134-0x0000000074830000-0x0000000074FE0000-memory.dmp
memory/4164-135-0x0000000005E30000-0x00000000063D4000-memory.dmp
memory/4164-136-0x0000000005960000-0x00000000059F2000-memory.dmp
memory/4164-137-0x0000000005B90000-0x0000000005BA0000-memory.dmp
memory/4164-138-0x0000000074830000-0x0000000074FE0000-memory.dmp
memory/4164-139-0x0000000005B90000-0x0000000005BA0000-memory.dmp
memory/4164-251-0x0000000006640000-0x000000000664A000-memory.dmp
memory/4164-252-0x0000000074830000-0x0000000074FE0000-memory.dmp