nitro | 7e9a5036fe2c20513b4fc397b1c0a4ef51377cc88b462f42650a14c953a16bd6

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 23:06

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General

Target

97d8e6f4f1b8eb550dc3bddbb248b517.exe
Size

61KB
MD5

97d8e6f4f1b8eb550dc3bddbb248b517
SHA1

3f86d5392f592da72adfbddd00114dd5c84402d7
SHA256

7e9a5036fe2c20513b4fc397b1c0a4ef51377cc88b462f42650a14c953a16bd6
SHA512

05ce0112445c4ae61abb48e21ad4bafb3fe38f6b6d0fab9bf6d1ec56f2e4bdcdbee594e1ac00670421e3cbd4bbcd27fbec6971384102376999f5d94074a57950
SSDEEP

768:xKsMqCXfVcWO/M9ZkiANIUyyYLDwUzc80gmq3oP/oDw:xKseiM9ZkiAP2r/0O8/oE

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 (85) 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-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\97d8e6f4f1b8eb550dc3bddbb248b517.exe\""	97d8e6f4f1b8eb550dc3bddbb248b517.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	97d8e6f4f1b8eb550dc3bddbb248b517.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	97d8e6f4f1b8eb550dc3bddbb248b517.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	97d8e6f4f1b8eb550dc3bddbb248b517.exe

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

Web Service

T1102

flow	ioc
9	discord.com
10	discord.com
11	discord.com
6	discord.com
7	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
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-1-5-21-1603059206-2004189698-4139800220-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	97d8e6f4f1b8eb550dc3bddbb248b517.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	97d8e6f4f1b8eb550dc3bddbb248b517.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1692	97d8e6f4f1b8eb550dc3bddbb248b517.exe
1692	97d8e6f4f1b8eb550dc3bddbb248b517.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1692	97d8e6f4f1b8eb550dc3bddbb248b517.exe
Token: SeIncreaseQuotaPrivilege	2928	WMIC.exe
Token: SeSecurityPrivilege	2928	WMIC.exe
Token: SeTakeOwnershipPrivilege	2928	WMIC.exe
Token: SeLoadDriverPrivilege	2928	WMIC.exe
Token: SeSystemProfilePrivilege	2928	WMIC.exe
Token: SeSystemtimePrivilege	2928	WMIC.exe
Token: SeProfSingleProcessPrivilege	2928	WMIC.exe
Token: SeIncBasePriorityPrivilege	2928	WMIC.exe
Token: SeCreatePagefilePrivilege	2928	WMIC.exe
Token: SeBackupPrivilege	2928	WMIC.exe
Token: SeRestorePrivilege	2928	WMIC.exe
Token: SeShutdownPrivilege	2928	WMIC.exe
Token: SeDebugPrivilege	2928	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2928	WMIC.exe
Token: SeRemoteShutdownPrivilege	2928	WMIC.exe
Token: SeUndockPrivilege	2928	WMIC.exe
Token: SeManageVolumePrivilege	2928	WMIC.exe
Token: 33	2928	WMIC.exe
Token: 34	2928	WMIC.exe
Token: 35	2928	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2928	WMIC.exe
Token: SeSecurityPrivilege	2928	WMIC.exe
Token: SeTakeOwnershipPrivilege	2928	WMIC.exe
Token: SeLoadDriverPrivilege	2928	WMIC.exe
Token: SeSystemProfilePrivilege	2928	WMIC.exe
Token: SeSystemtimePrivilege	2928	WMIC.exe
Token: SeProfSingleProcessPrivilege	2928	WMIC.exe
Token: SeIncBasePriorityPrivilege	2928	WMIC.exe
Token: SeCreatePagefilePrivilege	2928	WMIC.exe
Token: SeBackupPrivilege	2928	WMIC.exe
Token: SeRestorePrivilege	2928	WMIC.exe
Token: SeShutdownPrivilege	2928	WMIC.exe
Token: SeDebugPrivilege	2928	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2928	WMIC.exe
Token: SeRemoteShutdownPrivilege	2928	WMIC.exe
Token: SeUndockPrivilege	2928	WMIC.exe
Token: SeManageVolumePrivilege	2928	WMIC.exe
Token: 33	2928	WMIC.exe
Token: 34	2928	WMIC.exe
Token: 35	2928	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1732	1692	97d8e6f4f1b8eb550dc3bddbb248b517.exe	28
PID 1692 wrote to memory of 1732	1692	97d8e6f4f1b8eb550dc3bddbb248b517.exe	28
PID 1692 wrote to memory of 1732	1692	97d8e6f4f1b8eb550dc3bddbb248b517.exe	28
PID 1692 wrote to memory of 1732	1692	97d8e6f4f1b8eb550dc3bddbb248b517.exe	28
PID 1732 wrote to memory of 2928	1732	cmd.exe	30
PID 1732 wrote to memory of 2928	1732	cmd.exe	30
PID 1732 wrote to memory of 2928	1732	cmd.exe	30
PID 1732 wrote to memory of 2928	1732	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\97d8e6f4f1b8eb550dc3bddbb248b517.exe
"C:\Users\Admin\AppData\Local\Temp\97d8e6f4f1b8eb550dc3bddbb248b517.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:1692
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2928

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/1692-1-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/1692-0-0x0000000000C50000-0x0000000000C66000-memory.dmp

Filesize
88KB

Download
memory/1692-2-0x0000000000C00000-0x0000000000C40000-memory.dmp

Filesize
256KB

Download
memory/1692-44-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/1692-49-0x0000000000C00000-0x0000000000C40000-memory.dmp

Filesize
256KB

Download
memory/1692-93-0x0000000000C00000-0x0000000000C40000-memory.dmp

Filesize
256KB

Download
memory/1692-94-0x0000000000C00000-0x0000000000C40000-memory.dmp

Filesize
256KB

Download