nitro | 5010be4c22df0349619aede47aa8e234e16985c8dbd0ca86de12c778b402bf58

Resubmissions

11-05-2024 06:45

240511-hjc2jabd7z 10

11-05-2024 06:40

240511-hfp7padg83 10

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 06:45

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General

Target

Free Nitro.exe
Size

62KB
MD5

d01e6cc12d314d7d1d3714fa9be0ca80
SHA1

9cb53ff747461cf4f122d6356296341bbd2fe203
SHA256

5010be4c22df0349619aede47aa8e234e16985c8dbd0ca86de12c778b402bf58
SHA512

2fb687819b5cf9ad93b702b553b8d5760e8bb946abd436da72f44918f141ec9be1c6bb02252400da9d9846f70db61f993af783c7a996d6523be582a16d8a767e
SSDEEP

768:OKsMqCXfVcWrPM9ZkiANIUkwYLDwUzc80gmq3oP/oDF:OKsejM9ZkiAP2r/0O8/op

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 (92) 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

Processes:

Free Nitro.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Free Nitro.exe\""	Free Nitro.exe

Drops desktop.ini file(s) 5 IoCs

Processes:

Free Nitro.exe

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

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

Web Service

T1102

Processes:

flow	ioc
25	discord.com
28	discord.com
59	discord.com
8	discord.com
10	discord.com
20	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.

Processes:

flow	ioc
3	api.ipify.org
4	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

Free Nitro.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	Free Nitro.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	Process	procid_target
4712	2624	WerFault.exe	81
4868	2624	WerFault.exe	81

Modifies registry class 1 IoCs

Processes:

OpenWith.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\Local Settings	OpenWith.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Free Nitro.exe

pid	Process
2624	Free Nitro.exe
2624	Free Nitro.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

Free Nitro.exeWMIC.exe

description	pid	Process
Token: SeDebugPrivilege	2624	Free Nitro.exe
Token: SeIncreaseQuotaPrivilege	4164	WMIC.exe
Token: SeSecurityPrivilege	4164	WMIC.exe
Token: SeTakeOwnershipPrivilege	4164	WMIC.exe
Token: SeLoadDriverPrivilege	4164	WMIC.exe
Token: SeSystemProfilePrivilege	4164	WMIC.exe
Token: SeSystemtimePrivilege	4164	WMIC.exe
Token: SeProfSingleProcessPrivilege	4164	WMIC.exe
Token: SeIncBasePriorityPrivilege	4164	WMIC.exe
Token: SeCreatePagefilePrivilege	4164	WMIC.exe
Token: SeBackupPrivilege	4164	WMIC.exe
Token: SeRestorePrivilege	4164	WMIC.exe
Token: SeShutdownPrivilege	4164	WMIC.exe
Token: SeDebugPrivilege	4164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4164	WMIC.exe
Token: SeRemoteShutdownPrivilege	4164	WMIC.exe
Token: SeUndockPrivilege	4164	WMIC.exe
Token: SeManageVolumePrivilege	4164	WMIC.exe
Token: 33	4164	WMIC.exe
Token: 34	4164	WMIC.exe
Token: 35	4164	WMIC.exe
Token: 36	4164	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4164	WMIC.exe
Token: SeSecurityPrivilege	4164	WMIC.exe
Token: SeTakeOwnershipPrivilege	4164	WMIC.exe
Token: SeLoadDriverPrivilege	4164	WMIC.exe
Token: SeSystemProfilePrivilege	4164	WMIC.exe
Token: SeSystemtimePrivilege	4164	WMIC.exe
Token: SeProfSingleProcessPrivilege	4164	WMIC.exe
Token: SeIncBasePriorityPrivilege	4164	WMIC.exe
Token: SeCreatePagefilePrivilege	4164	WMIC.exe
Token: SeBackupPrivilege	4164	WMIC.exe
Token: SeRestorePrivilege	4164	WMIC.exe
Token: SeShutdownPrivilege	4164	WMIC.exe
Token: SeDebugPrivilege	4164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4164	WMIC.exe
Token: SeRemoteShutdownPrivilege	4164	WMIC.exe
Token: SeUndockPrivilege	4164	WMIC.exe
Token: SeManageVolumePrivilege	4164	WMIC.exe
Token: 33	4164	WMIC.exe
Token: 34	4164	WMIC.exe
Token: 35	4164	WMIC.exe
Token: 36	4164	WMIC.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

OpenWith.exe

pid	Process
5004	OpenWith.exe
5004	OpenWith.exe
5004	OpenWith.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Free Nitro.execmd.exe

description	pid	Process	procid_target
PID 2624 wrote to memory of 4252	2624	Free Nitro.exe	82
PID 2624 wrote to memory of 4252	2624	Free Nitro.exe	82
PID 2624 wrote to memory of 4252	2624	Free Nitro.exe	82
PID 4252 wrote to memory of 4164	4252	cmd.exe	84
PID 4252 wrote to memory of 4164	4252	cmd.exe	84
PID 4252 wrote to memory of 4164	4252	cmd.exe	84

C:\Users\Admin\AppData\Local\Temp\Free Nitro.exe
"C:\Users\Admin\AppData\Local\Temp\Free Nitro.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:2624
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4252
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 2200
  2⤵
  - Program crash
  PID:4712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 2212
  2⤵
  - Program crash
  PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2624 -ip 2624
1⤵
PID:3804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2624 -ip 2624
1⤵
PID:1148

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:5004

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/2624-0-0x000000007450E000-0x000000007450F000-memory.dmp

Filesize
4KB

Download
memory/2624-1-0x0000000000B20000-0x0000000000B36000-memory.dmp

Filesize
88KB

Download
memory/2624-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp

Filesize
5.6MB

Download
memory/2624-3-0x0000000005520000-0x00000000055B2000-memory.dmp

Filesize
584KB

Download
memory/2624-4-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/2624-44-0x000000007450E000-0x000000007450F000-memory.dmp

Filesize
4KB

Download
memory/2624-51-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/2624-101-0x00000000062B0000-0x00000000062BA000-memory.dmp

Filesize
40KB

Download
memory/2624-102-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download