Analysis
- max time kernel
133s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20230621-en - resource tags
arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system - submitted
30/06/2023, 13:55
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
NitroRansomwareexeexeexe.exe
Resource
win7-20230621-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
NitroRansomwareexeexeexe.exe
Resource
win10v2004-20230621-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target NitroRansomwareexeexeexe.exe
- Size 63KB
- Sample230630-q8dcladb92
- SHA256 4fd3f409977765a07f675bb313a2cf465c14688ed95d6c1b8670d087284e4044
- MD5 200888acb283479e572b269027afd894
- SHA1 cbcffe2f28d81f959a1c966956c381e6d6d9372b
- SHA512 aa7edd8ce5ea271dfd173acb1b8927d1562b7883f13b913552e6e5d13abaef7ff9496192569ae8cb187cedf48d7e5144670abb278d50ca27b3c6dcaa4861f5a1
- SSDEEP 768:xc1dFAGXdAUJNAOcx7ZaY9NxLDwUzc80gmq3oP/oDx:mdFBbNAzj9Pr/0O8/oN
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Nitro
A ransomware that demands Discord nitro gift codes to decrypt files.
- Modifies extensions of user files 11 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\RestoreSync.tiff NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\UnlockUninstall.png.givemenitro NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\ConvertToStep.raw.givemenitro NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\DenyBackup.tiff.givemenitro NitroRansomwareexeexeexe.exe File opened for modification C:\Users\Admin\Pictures\DenyBackup.tiff NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\ImportSet.png.givemenitro NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\StepSubmit.tif.givemenitro NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\GetOptimize.crw.givemenitro NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\OutResolve.raw.givemenitro NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\RequestGroup.raw.givemenitro NitroRansomwareexeexeexe.exe File created C:\Users\Admin\Pictures\RestoreSync.tiff.givemenitro NitroRansomwareexeexeexe.exe - 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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2177513644-1903222820-241662473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NitroRansomwareexeexeexe.exe\"" NitroRansomwareexeexeexe.exe - Drops desktop.ini file(s) 5 IoCs
description ioc Process File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini NitroRansomwareexeexeexe.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini NitroRansomwareexeexeexe.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini NitroRansomwareexeexeexe.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini NitroRansomwareexeexeexe.exe File opened for modification C:\Users\Admin\Documents\desktop.ini NitroRansomwareexeexeexe.exe - 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.
flow ioc 15 api.ipify.org 16 api.ipify.org - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2177513644-1903222820-241662473-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png" NitroRansomwareexeexeexe.exe - Program crash 2 IoCs
pid pid_target Process procid_target 4124 2036 WerFault.exe 84 1752 2036 WerFault.exe 84 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2036 NitroRansomwareexeexeexe.exe 2036 NitroRansomwareexeexeexe.exe - Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeDebugPrivilege 2036 NitroRansomwareexeexeexe.exe Token: SeIncreaseQuotaPrivilege 3112 WMIC.exe Token: SeSecurityPrivilege 3112 WMIC.exe Token: SeTakeOwnershipPrivilege 3112 WMIC.exe Token: SeLoadDriverPrivilege 3112 WMIC.exe Token: SeSystemProfilePrivilege 3112 WMIC.exe Token: SeSystemtimePrivilege 3112 WMIC.exe Token: SeProfSingleProcessPrivilege 3112 WMIC.exe Token: SeIncBasePriorityPrivilege 3112 WMIC.exe Token: SeCreatePagefilePrivilege 3112 WMIC.exe Token: SeBackupPrivilege 3112 WMIC.exe Token: SeRestorePrivilege 3112 WMIC.exe Token: SeShutdownPrivilege 3112 WMIC.exe Token: SeDebugPrivilege 3112 WMIC.exe Token: SeSystemEnvironmentPrivilege 3112 WMIC.exe Token: SeRemoteShutdownPrivilege 3112 WMIC.exe Token: SeUndockPrivilege 3112 WMIC.exe Token: SeManageVolumePrivilege 3112 WMIC.exe Token: 33 3112 WMIC.exe Token: 34 3112 WMIC.exe Token: 35 3112 WMIC.exe Token: 36 3112 WMIC.exe Token: SeIncreaseQuotaPrivilege 3112 WMIC.exe Token: SeSecurityPrivilege 3112 WMIC.exe Token: SeTakeOwnershipPrivilege 3112 WMIC.exe Token: SeLoadDriverPrivilege 3112 WMIC.exe Token: SeSystemProfilePrivilege 3112 WMIC.exe Token: SeSystemtimePrivilege 3112 WMIC.exe Token: SeProfSingleProcessPrivilege 3112 WMIC.exe Token: SeIncBasePriorityPrivilege 3112 WMIC.exe Token: SeCreatePagefilePrivilege 3112 WMIC.exe Token: SeBackupPrivilege 3112 WMIC.exe Token: SeRestorePrivilege 3112 WMIC.exe Token: SeShutdownPrivilege 3112 WMIC.exe Token: SeDebugPrivilege 3112 WMIC.exe Token: SeSystemEnvironmentPrivilege 3112 WMIC.exe Token: SeRemoteShutdownPrivilege 3112 WMIC.exe Token: SeUndockPrivilege 3112 WMIC.exe Token: SeManageVolumePrivilege 3112 WMIC.exe Token: 33 3112 WMIC.exe Token: 34 3112 WMIC.exe Token: 35 3112 WMIC.exe Token: 36 3112 WMIC.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2036 wrote to memory of 4728 2036 NitroRansomwareexeexeexe.exe 85 PID 2036 wrote to memory of 4728 2036 NitroRansomwareexeexeexe.exe 85 PID 2036 wrote to memory of 4728 2036 NitroRansomwareexeexeexe.exe 85 PID 4728 wrote to memory of 3112 4728 cmd.exe 87 PID 4728 wrote to memory of 3112 4728 cmd.exe 87 PID 4728 wrote to memory of 3112 4728 cmd.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\NitroRansomwareexeexeexe.exe"C:\Users\Admin\AppData\Local\Temp\NitroRansomwareexeexeexe.exe"1⤵
- Modifies extensions of user files
- 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
PID:2036 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4728 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic csproduct get uuid3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3112
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 22362⤵
- Program crash
PID:4124
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 22362⤵
- Program crash
PID:1752
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2036 -ip 20361⤵PID:4908
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2036 -ip 20361⤵PID:4924