nitro | 7d7f39ea140c1d58a017ffdd969c8a6f6201bfb578b4090b1e4588be84a7e29a

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 08:08

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General

Target

96afa5e15f4cdbb0e1f51097e6acf4ea.exe
Size

123KB
MD5

96afa5e15f4cdbb0e1f51097e6acf4ea
SHA1

f38ea1b2f52f76a691a320a6a812a414cc0d2ecf
SHA256

7d7f39ea140c1d58a017ffdd969c8a6f6201bfb578b4090b1e4588be84a7e29a
SHA512

8079fcb8018f31d08b9e3f01ca35ce7f1526632e9bdd3c6ff83df279f24ddba83c929a033bd0450cd196356d280be7948386957db6d7e8dceb242c12cd145efc
SSDEEP

1536:pCIx2GoWviV8U5RG+B9cz5PdJQnAo045kna1h/9tiIx9XJKS2O8/ovxTR4r/3O:eZRJ2dg0Ut335KS38/ovJR46

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 (74) 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\\96afa5e15f4cdbb0e1f51097e6acf4ea.exe\""	96afa5e15f4cdbb0e1f51097e6acf4ea.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	96afa5e15f4cdbb0e1f51097e6acf4ea.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
4	api.ipify.org
5	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"	96afa5e15f4cdbb0e1f51097e6acf4ea.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"	96afa5e15f4cdbb0e1f51097e6acf4ea.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2040	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
2040	96afa5e15f4cdbb0e1f51097e6acf4ea.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
Token: SeIncreaseQuotaPrivilege	2644	WMIC.exe
Token: SeSecurityPrivilege	2644	WMIC.exe
Token: SeTakeOwnershipPrivilege	2644	WMIC.exe
Token: SeLoadDriverPrivilege	2644	WMIC.exe
Token: SeSystemProfilePrivilege	2644	WMIC.exe
Token: SeSystemtimePrivilege	2644	WMIC.exe
Token: SeProfSingleProcessPrivilege	2644	WMIC.exe
Token: SeIncBasePriorityPrivilege	2644	WMIC.exe
Token: SeCreatePagefilePrivilege	2644	WMIC.exe
Token: SeBackupPrivilege	2644	WMIC.exe
Token: SeRestorePrivilege	2644	WMIC.exe
Token: SeShutdownPrivilege	2644	WMIC.exe
Token: SeDebugPrivilege	2644	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2644	WMIC.exe
Token: SeRemoteShutdownPrivilege	2644	WMIC.exe
Token: SeUndockPrivilege	2644	WMIC.exe
Token: SeManageVolumePrivilege	2644	WMIC.exe
Token: 33	2644	WMIC.exe
Token: 34	2644	WMIC.exe
Token: 35	2644	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2644	WMIC.exe
Token: SeSecurityPrivilege	2644	WMIC.exe
Token: SeTakeOwnershipPrivilege	2644	WMIC.exe
Token: SeLoadDriverPrivilege	2644	WMIC.exe
Token: SeSystemProfilePrivilege	2644	WMIC.exe
Token: SeSystemtimePrivilege	2644	WMIC.exe
Token: SeProfSingleProcessPrivilege	2644	WMIC.exe
Token: SeIncBasePriorityPrivilege	2644	WMIC.exe
Token: SeCreatePagefilePrivilege	2644	WMIC.exe
Token: SeBackupPrivilege	2644	WMIC.exe
Token: SeRestorePrivilege	2644	WMIC.exe
Token: SeShutdownPrivilege	2644	WMIC.exe
Token: SeDebugPrivilege	2644	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2644	WMIC.exe
Token: SeRemoteShutdownPrivilege	2644	WMIC.exe
Token: SeUndockPrivilege	2644	WMIC.exe
Token: SeManageVolumePrivilege	2644	WMIC.exe
Token: 33	2644	WMIC.exe
Token: 34	2644	WMIC.exe
Token: 35	2644	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2608	2040	96afa5e15f4cdbb0e1f51097e6acf4ea.exe	28
PID 2040 wrote to memory of 2608	2040	96afa5e15f4cdbb0e1f51097e6acf4ea.exe	28
PID 2040 wrote to memory of 2608	2040	96afa5e15f4cdbb0e1f51097e6acf4ea.exe	28
PID 2040 wrote to memory of 2608	2040	96afa5e15f4cdbb0e1f51097e6acf4ea.exe	28
PID 2608 wrote to memory of 2644	2608	cmd.exe	30
PID 2608 wrote to memory of 2644	2608	cmd.exe	30
PID 2608 wrote to memory of 2644	2608	cmd.exe	30
PID 2608 wrote to memory of 2644	2608	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\96afa5e15f4cdbb0e1f51097e6acf4ea.exe
"C:\Users\Admin\AppData\Local\Temp\96afa5e15f4cdbb0e1f51097e6acf4ea.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:2040
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2644

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/2040-0-0x00000000009C0000-0x00000000009E6000-memory.dmp

Filesize
152KB

Download
memory/2040-1-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2040-2-0x0000000000590000-0x00000000005D0000-memory.dmp

Filesize
256KB

Download
memory/2040-20-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2040-30-0x0000000000590000-0x00000000005D0000-memory.dmp

Filesize
256KB

Download
memory/2040-83-0x0000000000590000-0x00000000005D0000-memory.dmp

Filesize
256KB

Download
memory/2040-84-0x0000000000590000-0x00000000005D0000-memory.dmp

Filesize
256KB

Download