nitro | 55c4c9a927b01016ffda9286f5637f3c0c19b84855eea235c07b58d715aca5d2

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/10/2024, 09:46

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General

Target
ipcleaner.exe
Size 61KB
Sample241027-lrpbbavjas
SHA256 55c4c9a927b01016ffda9286f5637f3c0c19b84855eea235c07b58d715aca5d2
MD5 f141d316c94c790986c8a611265b13a8
SHA1 1a7039db35fca03cff119396e389fc11a16d8ed3
SHA512 b14b7718a6816d8562ed41434ec883bbc169ed6bbdb72f598d3706c18ae5ef955309a4c8049538562d1894249317c6c4e5b867609dbfb04ac7186e688614cc4a
SSDEEP 768:JKsMqCXfVcWlzM9ZkiANIUUSYLDwUzc80gmq3oP/oDo:JKse1M9ZkiAP4r/0O8/oM
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nitro discovery persistence ransomware spyware stealer

Malware Config

Signatures

Nitro
A ransomware that demands Discord nitro gift codes to decrypt files.
ransomware nitro
Nitro family
nitro
Renames multiple (86) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\ipcleaner.exe\""	ipcleaner.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	ipcleaner.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	ipcleaner.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	ipcleaner.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
6	discord.com
7	discord.com
8	discord.com
9	discord.com
10	discord.com
11	discord.com

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
5	api.ipify.org
4	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	ipcleaner.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	ipcleaner.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipcleaner.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2380	ipcleaner.exe
2380	ipcleaner.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	ipcleaner.exe
Token: SeIncreaseQuotaPrivilege	3060	WMIC.exe
Token: SeSecurityPrivilege	3060	WMIC.exe
Token: SeTakeOwnershipPrivilege	3060	WMIC.exe
Token: SeLoadDriverPrivilege	3060	WMIC.exe
Token: SeSystemProfilePrivilege	3060	WMIC.exe
Token: SeSystemtimePrivilege	3060	WMIC.exe
Token: SeProfSingleProcessPrivilege	3060	WMIC.exe
Token: SeIncBasePriorityPrivilege	3060	WMIC.exe
Token: SeCreatePagefilePrivilege	3060	WMIC.exe
Token: SeBackupPrivilege	3060	WMIC.exe
Token: SeRestorePrivilege	3060	WMIC.exe
Token: SeShutdownPrivilege	3060	WMIC.exe
Token: SeDebugPrivilege	3060	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3060	WMIC.exe
Token: SeRemoteShutdownPrivilege	3060	WMIC.exe
Token: SeUndockPrivilege	3060	WMIC.exe
Token: SeManageVolumePrivilege	3060	WMIC.exe
Token: 33	3060	WMIC.exe
Token: 34	3060	WMIC.exe
Token: 35	3060	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3060	WMIC.exe
Token: SeSecurityPrivilege	3060	WMIC.exe
Token: SeTakeOwnershipPrivilege	3060	WMIC.exe
Token: SeLoadDriverPrivilege	3060	WMIC.exe
Token: SeSystemProfilePrivilege	3060	WMIC.exe
Token: SeSystemtimePrivilege	3060	WMIC.exe
Token: SeProfSingleProcessPrivilege	3060	WMIC.exe
Token: SeIncBasePriorityPrivilege	3060	WMIC.exe
Token: SeCreatePagefilePrivilege	3060	WMIC.exe
Token: SeBackupPrivilege	3060	WMIC.exe
Token: SeRestorePrivilege	3060	WMIC.exe
Token: SeShutdownPrivilege	3060	WMIC.exe
Token: SeDebugPrivilege	3060	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3060	WMIC.exe
Token: SeRemoteShutdownPrivilege	3060	WMIC.exe
Token: SeUndockPrivilege	3060	WMIC.exe
Token: SeManageVolumePrivilege	3060	WMIC.exe
Token: 33	3060	WMIC.exe
Token: 34	3060	WMIC.exe
Token: 35	3060	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2104	2380	ipcleaner.exe	31
PID 2380 wrote to memory of 2104	2380	ipcleaner.exe	31
PID 2380 wrote to memory of 2104	2380	ipcleaner.exe	31
PID 2380 wrote to memory of 2104	2380	ipcleaner.exe	31
PID 2104 wrote to memory of 3060	2104	cmd.exe	33
PID 2104 wrote to memory of 3060	2104	cmd.exe	33
PID 2104 wrote to memory of 3060	2104	cmd.exe	33
PID 2104 wrote to memory of 3060	2104	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\ipcleaner.exe
"C:\Users\Admin\AppData\Local\Temp\ipcleaner.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
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:3060