nitro | 98a15cd4586044b67b8a3e91b968f5e1cf1e34695b3691ae853d8f9bb3dc6509

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
23-11-2024 13:17

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General

Target

NitroRansomware.exe
Size

58KB
MD5

4d621109413f23798cc7b2b098151b17
SHA1

6090001cdcf47241aff7ba489061a3bf89e201a3
SHA256

98a15cd4586044b67b8a3e91b968f5e1cf1e34695b3691ae853d8f9bb3dc6509
SHA512

d4e1d0bb9c9716dffde27cd3d4741f8371a1aa761e848050774efcb7585b55831e9a95ff6d267b23972bfa018079ad6697fd113785a4ddd5814460efd6019116
SSDEEP

768:dCxeKvsG7+U52ECg5tcXbt23K4xIGEBLDwUzc80gmq3oP/oDuE:dphyK4ur/0O8/o6E

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 (95) 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-1-5-21-4249425805-3408538557-1766626484-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NitroRansomware.exe\""	NitroRansomware.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	NitroRansomware.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	NitroRansomware.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	NitroRansomware.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	NitroRansomware.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	NitroRansomware.exe

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
1	api.ipify.org
2	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	NitroRansomware.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	NitroRansomware.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
1792	NitroRansomware.exe
1792	NitroRansomware.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	1792	NitroRansomware.exe
Token: SeIncreaseQuotaPrivilege	4828	WMIC.exe
Token: SeSecurityPrivilege	4828	WMIC.exe
Token: SeTakeOwnershipPrivilege	4828	WMIC.exe
Token: SeLoadDriverPrivilege	4828	WMIC.exe
Token: SeSystemProfilePrivilege	4828	WMIC.exe
Token: SeSystemtimePrivilege	4828	WMIC.exe
Token: SeProfSingleProcessPrivilege	4828	WMIC.exe
Token: SeIncBasePriorityPrivilege	4828	WMIC.exe
Token: SeCreatePagefilePrivilege	4828	WMIC.exe
Token: SeBackupPrivilege	4828	WMIC.exe
Token: SeRestorePrivilege	4828	WMIC.exe
Token: SeShutdownPrivilege	4828	WMIC.exe
Token: SeDebugPrivilege	4828	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4828	WMIC.exe
Token: SeRemoteShutdownPrivilege	4828	WMIC.exe
Token: SeUndockPrivilege	4828	WMIC.exe
Token: SeManageVolumePrivilege	4828	WMIC.exe
Token: 33	4828	WMIC.exe
Token: 34	4828	WMIC.exe
Token: 35	4828	WMIC.exe
Token: 36	4828	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4828	WMIC.exe
Token: SeSecurityPrivilege	4828	WMIC.exe
Token: SeTakeOwnershipPrivilege	4828	WMIC.exe
Token: SeLoadDriverPrivilege	4828	WMIC.exe
Token: SeSystemProfilePrivilege	4828	WMIC.exe
Token: SeSystemtimePrivilege	4828	WMIC.exe
Token: SeProfSingleProcessPrivilege	4828	WMIC.exe
Token: SeIncBasePriorityPrivilege	4828	WMIC.exe
Token: SeCreatePagefilePrivilege	4828	WMIC.exe
Token: SeBackupPrivilege	4828	WMIC.exe
Token: SeRestorePrivilege	4828	WMIC.exe
Token: SeShutdownPrivilege	4828	WMIC.exe
Token: SeDebugPrivilege	4828	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4828	WMIC.exe
Token: SeRemoteShutdownPrivilege	4828	WMIC.exe
Token: SeUndockPrivilege	4828	WMIC.exe
Token: SeManageVolumePrivilege	4828	WMIC.exe
Token: 33	4828	WMIC.exe
Token: 34	4828	WMIC.exe
Token: 35	4828	WMIC.exe
Token: 36	4828	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 4688	1792	NitroRansomware.exe	80
PID 1792 wrote to memory of 4688	1792	NitroRansomware.exe	80
PID 1792 wrote to memory of 4688	1792	NitroRansomware.exe	80
PID 4688 wrote to memory of 4828	4688	cmd.exe	82
PID 4688 wrote to memory of 4828	4688	cmd.exe	82
PID 4688 wrote to memory of 4828	4688	cmd.exe	82

C:\Users\Admin\AppData\Local\Temp\NitroRansomware.exe
"C:\Users\Admin\AppData\Local\Temp\NitroRansomware.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:1792
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:4828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/1792-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/1792-1-0x0000000000830000-0x0000000000844000-memory.dmp

Filesize
80KB

Download
memory/1792-2-0x00000000057C0000-0x0000000005D66000-memory.dmp

Filesize
5.6MB

Download
memory/1792-3-0x00000000052F0000-0x0000000005382000-memory.dmp

Filesize
584KB

Download
memory/1792-4-0x0000000074B10000-0x00000000752C1000-memory.dmp

Filesize
7.7MB

Download
memory/1792-19-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/1792-22-0x0000000074B10000-0x00000000752C1000-memory.dmp

Filesize
7.7MB

Download
memory/1792-104-0x0000000006150000-0x000000000615A000-memory.dmp

Filesize
40KB

Download
memory/1792-105-0x0000000074B10000-0x00000000752C1000-memory.dmp

Filesize
7.7MB

Download
memory/1792-106-0x0000000074B10000-0x00000000752C1000-memory.dmp

Filesize
7.7MB

Download
memory/1792-107-0x0000000074B10000-0x00000000752C1000-memory.dmp

Filesize
7.7MB

Download
memory/1792-108-0x0000000074B10000-0x00000000752C1000-memory.dmp

Filesize
7.7MB

Download