nitro | 4719137349f2710799839c543157be9b30910bdb55d0cb0ce63e01c7b0cb1fe2

Resubmissions

30-10-2024 04:16

241030-evvtyaxpak 10

30-10-2024 04:13

241030-etaglswgkl 10

Analysis

max time kernel
106s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-10-2024 04:16

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General

Target

NitroRansomware.exe
Size

61KB
MD5

6d7a7a8269d09af8319b7c9782e184fa
SHA1

e689a0d7bfe32a1c8dd4746722465b245e45e903
SHA256

4719137349f2710799839c543157be9b30910bdb55d0cb0ce63e01c7b0cb1fe2
SHA512

8dd0ab0be173c5e69c7b1dc5545f6a7e5ddde6e7433f246b92da45b062e34c96edcb5a66956cba4d92b647e722ad5836e8bb66ef7d28736fa7c27b3456381101
SSDEEP

768:hKsMqCXfVcWO/M9ZkiANIUb0YLDwUzc80gmq3oP/oDA:hKseiM9ZkiAPxr/0O8/oE

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 (90) 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-1-5-21-4050598569-1597076380-177084960-1000\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\Desktop\desktop.ini	NitroRansomware.exe
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\Pictures\Camera Roll\desktop.ini	NitroRansomware.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	NitroRansomware.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 7 IoCs

Web Service

T1102

flow	ioc
10	discord.com
19	discord.com
23	discord.com
26	discord.com
52	discord.com
61	discord.com
8	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
7	api.ipify.org
6	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-1-5-21-4050598569-1597076380-177084960-1000\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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NitroRansomware.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2968	NitroRansomware.exe
2968	NitroRansomware.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	NitroRansomware.exe
Token: SeIncreaseQuotaPrivilege	640	WMIC.exe
Token: SeSecurityPrivilege	640	WMIC.exe
Token: SeTakeOwnershipPrivilege	640	WMIC.exe
Token: SeLoadDriverPrivilege	640	WMIC.exe
Token: SeSystemProfilePrivilege	640	WMIC.exe
Token: SeSystemtimePrivilege	640	WMIC.exe
Token: SeProfSingleProcessPrivilege	640	WMIC.exe
Token: SeIncBasePriorityPrivilege	640	WMIC.exe
Token: SeCreatePagefilePrivilege	640	WMIC.exe
Token: SeBackupPrivilege	640	WMIC.exe
Token: SeRestorePrivilege	640	WMIC.exe
Token: SeShutdownPrivilege	640	WMIC.exe
Token: SeDebugPrivilege	640	WMIC.exe
Token: SeSystemEnvironmentPrivilege	640	WMIC.exe
Token: SeRemoteShutdownPrivilege	640	WMIC.exe
Token: SeUndockPrivilege	640	WMIC.exe
Token: SeManageVolumePrivilege	640	WMIC.exe
Token: 33	640	WMIC.exe
Token: 34	640	WMIC.exe
Token: 35	640	WMIC.exe
Token: 36	640	WMIC.exe
Token: SeIncreaseQuotaPrivilege	640	WMIC.exe
Token: SeSecurityPrivilege	640	WMIC.exe
Token: SeTakeOwnershipPrivilege	640	WMIC.exe
Token: SeLoadDriverPrivilege	640	WMIC.exe
Token: SeSystemProfilePrivilege	640	WMIC.exe
Token: SeSystemtimePrivilege	640	WMIC.exe
Token: SeProfSingleProcessPrivilege	640	WMIC.exe
Token: SeIncBasePriorityPrivilege	640	WMIC.exe
Token: SeCreatePagefilePrivilege	640	WMIC.exe
Token: SeBackupPrivilege	640	WMIC.exe
Token: SeRestorePrivilege	640	WMIC.exe
Token: SeShutdownPrivilege	640	WMIC.exe
Token: SeDebugPrivilege	640	WMIC.exe
Token: SeSystemEnvironmentPrivilege	640	WMIC.exe
Token: SeRemoteShutdownPrivilege	640	WMIC.exe
Token: SeUndockPrivilege	640	WMIC.exe
Token: SeManageVolumePrivilege	640	WMIC.exe
Token: 33	640	WMIC.exe
Token: 34	640	WMIC.exe
Token: 35	640	WMIC.exe
Token: 36	640	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 4408	2968	NitroRansomware.exe	86
PID 2968 wrote to memory of 4408	2968	NitroRansomware.exe	86
PID 2968 wrote to memory of 4408	2968	NitroRansomware.exe	86
PID 4408 wrote to memory of 640	4408	cmd.exe	88
PID 4408 wrote to memory of 640	4408	cmd.exe	88
PID 4408 wrote to memory of 640	4408	cmd.exe	88

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:2968
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4408
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:640

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/2968-0-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

Filesize
4KB

Download
memory/2968-1-0x0000000000AF0000-0x0000000000B06000-memory.dmp

Filesize
88KB

Download
memory/2968-2-0x0000000005860000-0x0000000005E04000-memory.dmp

Filesize
5.6MB

Download
memory/2968-3-0x00000000053B0000-0x0000000005442000-memory.dmp

Filesize
584KB

Download
memory/2968-4-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2968-17-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

Filesize
4KB

Download
memory/2968-20-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2968-99-0x0000000006140000-0x000000000614A000-memory.dmp

Filesize
40KB

Download
memory/2968-100-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2968-101-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2968-102-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2968-103-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download