Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
21/04/2026, 03:38
General
- Target 2026-04-21_53e06f10b9d51d03bc0732164326e233_elex_nitro.exe
- Size 60KB
- Sample260421-d68phaa19y
- SHA256 fa1ba4bc4a6eccd5b4a755b0f3e832afc8210ba9bbe5891997b6586f628ca133
Malware Config
Signatures
- Family: Nitro
A ransomware that demands Discord nitro gift codes to decrypt files.
- Detects executables Discord URL observed in first stage droppers 1 IoCs
- Renames multiple (113) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 6 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Drops desktop.ini file(s) 5 IoCs
- 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
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 43 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-21_53e06f10b9d51d03bc0732164326e233_elex_nitro.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-21_53e06f10b9d51d03bc0732164326e233_elex_nitro.exe"1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic csproduct get uuid3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\2026-04-21_53e06f10b9d51d03bc0732164326e233_elex_nitro.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-21_53e06f10b9d51d03bc0732164326e233_elex_nitro.exe"1⤵
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/1884-4-0x0000000005110000-0x0000000005120000-memory.dmp
memory/1884-5-0x0000000005210000-0x000000000521A000-memory.dmp
memory/1884-29-0x0000000005110000-0x0000000005120000-memory.dmp
memory/3368-0-0x0000000000620000-0x0000000000636000-memory.dmp
memory/3368-1-0x0000000005650000-0x0000000005BF6000-memory.dmp
memory/3368-2-0x0000000005140000-0x00000000051D2000-memory.dmp
memory/3368-3-0x0000000005490000-0x00000000054A0000-memory.dmp
memory/3368-25-0x0000000005490000-0x00000000054A0000-memory.dmp