nitro | 3648148140b969d6ff9c51898844311a7572815b1168a320eb924a3ebea6fc22

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-10-2024 12:47

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General

Target

NitroRansomware.exe
Size

61KB
MD5

07e743c285d7f93f6eade3ef06f254af
SHA1

0041dac01ef16644d29bfa52bbc07bb8650d1ab0
SHA256

3648148140b969d6ff9c51898844311a7572815b1168a320eb924a3ebea6fc22
SHA512

77ca7c4a5fca4b7e3e30e27fee2025d7fc4a6a0036633fff82ffde981a0bd04238134038a7b0615911f60614b44bbde3ecca32a4b767c8a420ab2e91317a12b6
SSDEEP

768:0KsMqCXfVcWlzM9ZkiANIUndYLDwUzc80gmq3oP/oDF:0Kse1M9ZkiAPyr/0O8/oh

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 (67) 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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NitroRansomware.exe\""	NitroRansomware.exe

Drops desktop.ini file(s) 3 IoCs

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

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

Web Service

T1102

flow	ioc
7	discord.com
8	discord.com
9	discord.com
10	discord.com
11	discord.com
6	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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	NitroRansomware.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	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
1924	NitroRansomware.exe
1924	NitroRansomware.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	NitroRansomware.exe
Token: SeIncreaseQuotaPrivilege	1404	WMIC.exe
Token: SeSecurityPrivilege	1404	WMIC.exe
Token: SeTakeOwnershipPrivilege	1404	WMIC.exe
Token: SeLoadDriverPrivilege	1404	WMIC.exe
Token: SeSystemProfilePrivilege	1404	WMIC.exe
Token: SeSystemtimePrivilege	1404	WMIC.exe
Token: SeProfSingleProcessPrivilege	1404	WMIC.exe
Token: SeIncBasePriorityPrivilege	1404	WMIC.exe
Token: SeCreatePagefilePrivilege	1404	WMIC.exe
Token: SeBackupPrivilege	1404	WMIC.exe
Token: SeRestorePrivilege	1404	WMIC.exe
Token: SeShutdownPrivilege	1404	WMIC.exe
Token: SeDebugPrivilege	1404	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1404	WMIC.exe
Token: SeRemoteShutdownPrivilege	1404	WMIC.exe
Token: SeUndockPrivilege	1404	WMIC.exe
Token: SeManageVolumePrivilege	1404	WMIC.exe
Token: 33	1404	WMIC.exe
Token: 34	1404	WMIC.exe
Token: 35	1404	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1404	WMIC.exe
Token: SeSecurityPrivilege	1404	WMIC.exe
Token: SeTakeOwnershipPrivilege	1404	WMIC.exe
Token: SeLoadDriverPrivilege	1404	WMIC.exe
Token: SeSystemProfilePrivilege	1404	WMIC.exe
Token: SeSystemtimePrivilege	1404	WMIC.exe
Token: SeProfSingleProcessPrivilege	1404	WMIC.exe
Token: SeIncBasePriorityPrivilege	1404	WMIC.exe
Token: SeCreatePagefilePrivilege	1404	WMIC.exe
Token: SeBackupPrivilege	1404	WMIC.exe
Token: SeRestorePrivilege	1404	WMIC.exe
Token: SeShutdownPrivilege	1404	WMIC.exe
Token: SeDebugPrivilege	1404	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1404	WMIC.exe
Token: SeRemoteShutdownPrivilege	1404	WMIC.exe
Token: SeUndockPrivilege	1404	WMIC.exe
Token: SeManageVolumePrivilege	1404	WMIC.exe
Token: 33	1404	WMIC.exe
Token: 34	1404	WMIC.exe
Token: 35	1404	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 2552	1924	NitroRansomware.exe	30
PID 1924 wrote to memory of 2552	1924	NitroRansomware.exe	30
PID 1924 wrote to memory of 2552	1924	NitroRansomware.exe	30
PID 1924 wrote to memory of 2552	1924	NitroRansomware.exe	30
PID 2552 wrote to memory of 1404	2552	cmd.exe	32
PID 2552 wrote to memory of 1404	2552	cmd.exe	32
PID 2552 wrote to memory of 1404	2552	cmd.exe	32
PID 2552 wrote to memory of 1404	2552	cmd.exe	32

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:1924
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2552
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1404

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

Web Service

T1102

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/1924-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/1924-1-0x0000000001350000-0x0000000001366000-memory.dmp

Filesize
88KB

Download
memory/1924-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-19-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/1924-23-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-75-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-76-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download