nitro | 9a8fb8a3604604036f0b7747d6fb17f66076ae60fcc28ce88d8ba60098a09511

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-01-2024 14:11

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General

Target

NitroRansomware.exe
Size

61KB
MD5

067cd97c3c0ae0d8b88963b23c7988c1
SHA1

d0791728110ba68941185fe756069a8b7eed5a89
SHA256

c5a67cae54aabf8f5e5d975135d961ed665ef021b8d20dccaebc40b1677baa3c
SHA512

08a7f9cfc8481ed328d7f55a780cccc831809ed995342e30aef7f47652327b5c673af845d6fe5b34e7007ed1ab57f915d43e540d092590220caa5aed4116127c
SSDEEP

768:WKsMqCXfVcWlzM9ZkiANIUvDYLDwUzc80gmq3oP/oDV:WKse1M9ZkiAP0r/0O8/oJ

Score

10^/10

nitro persistence ransomware spyware stealer

Malware Config

Signatures

Nitro
A ransomware that demands Discord nitro gift codes to decrypt files.
ransomware nitro
Renames multiple (88) 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 2 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

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-1-5-21-3427588347-1492276948-3422228430-1000\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\Pictures\desktop.ini	NitroRansomware.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	NitroRansomware.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	NitroRansomware.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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
3	api.ipify.org
2	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-1-5-21-3427588347-1492276948-3422228430-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	NitroRansomware.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	NitroRansomware.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1912	NitroRansomware.exe
1912	NitroRansomware.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1912	NitroRansomware.exe
Token: SeIncreaseQuotaPrivilege	2124	WMIC.exe
Token: SeSecurityPrivilege	2124	WMIC.exe
Token: SeTakeOwnershipPrivilege	2124	WMIC.exe
Token: SeLoadDriverPrivilege	2124	WMIC.exe
Token: SeSystemProfilePrivilege	2124	WMIC.exe
Token: SeSystemtimePrivilege	2124	WMIC.exe
Token: SeProfSingleProcessPrivilege	2124	WMIC.exe
Token: SeIncBasePriorityPrivilege	2124	WMIC.exe
Token: SeCreatePagefilePrivilege	2124	WMIC.exe
Token: SeBackupPrivilege	2124	WMIC.exe
Token: SeRestorePrivilege	2124	WMIC.exe
Token: SeShutdownPrivilege	2124	WMIC.exe
Token: SeDebugPrivilege	2124	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2124	WMIC.exe
Token: SeRemoteShutdownPrivilege	2124	WMIC.exe
Token: SeUndockPrivilege	2124	WMIC.exe
Token: SeManageVolumePrivilege	2124	WMIC.exe
Token: 33	2124	WMIC.exe
Token: 34	2124	WMIC.exe
Token: 35	2124	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2124	WMIC.exe
Token: SeSecurityPrivilege	2124	WMIC.exe
Token: SeTakeOwnershipPrivilege	2124	WMIC.exe
Token: SeLoadDriverPrivilege	2124	WMIC.exe
Token: SeSystemProfilePrivilege	2124	WMIC.exe
Token: SeSystemtimePrivilege	2124	WMIC.exe
Token: SeProfSingleProcessPrivilege	2124	WMIC.exe
Token: SeIncBasePriorityPrivilege	2124	WMIC.exe
Token: SeCreatePagefilePrivilege	2124	WMIC.exe
Token: SeBackupPrivilege	2124	WMIC.exe
Token: SeRestorePrivilege	2124	WMIC.exe
Token: SeShutdownPrivilege	2124	WMIC.exe
Token: SeDebugPrivilege	2124	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2124	WMIC.exe
Token: SeRemoteShutdownPrivilege	2124	WMIC.exe
Token: SeUndockPrivilege	2124	WMIC.exe
Token: SeManageVolumePrivilege	2124	WMIC.exe
Token: 33	2124	WMIC.exe
Token: 34	2124	WMIC.exe
Token: 35	2124	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 2820	1912	NitroRansomware.exe	28
PID 1912 wrote to memory of 2820	1912	NitroRansomware.exe	28
PID 1912 wrote to memory of 2820	1912	NitroRansomware.exe	28
PID 1912 wrote to memory of 2820	1912	NitroRansomware.exe	28
PID 2820 wrote to memory of 2124	2820	cmd.exe	30
PID 2820 wrote to memory of 2124	2820	cmd.exe	30
PID 2820 wrote to memory of 2124	2820	cmd.exe	30
PID 2820 wrote to memory of 2124	2820	cmd.exe	30

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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2820
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2124

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

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/1912-0-0x0000000000E80000-0x0000000000E96000-memory.dmp

Filesize
88KB

Download
memory/1912-1-0x0000000074A10000-0x00000000750FE000-memory.dmp

Filesize
6.9MB

Download
memory/1912-2-0x0000000004610000-0x0000000004650000-memory.dmp

Filesize
256KB

Download
memory/1912-32-0x0000000074A10000-0x00000000750FE000-memory.dmp

Filesize
6.9MB

Download
memory/1912-38-0x0000000004610000-0x0000000004650000-memory.dmp

Filesize
256KB

Download
memory/1912-96-0x0000000004610000-0x0000000004650000-memory.dmp

Filesize
256KB

Download
memory/1912-97-0x0000000004610000-0x0000000004650000-memory.dmp

Filesize
256KB

Download