nitro | 1bb76ebb9babf91da73cc626184bd08aa4926ca2b5d9e6f10024e045bb5dbb9a

Analysis

max time kernel
92s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2024 00:45

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General

Target

9098311a0769abc9228747193c020e94.exe
Size

61KB
MD5

9098311a0769abc9228747193c020e94
SHA1

4b733c6389f552c15faf93de6a9e0217b6966759
SHA256

1bb76ebb9babf91da73cc626184bd08aa4926ca2b5d9e6f10024e045bb5dbb9a
SHA512

fdfbdc2c46bd0eab2ded6d884c7695fad82ccbcc7cd5d4747fa217f97e5514b88b8061451face07134c9b02bacc08880e5bc632b08d60c712c466c2f581547d2
SSDEEP

768:IKsMqCXfVcWp3M9ZkiANIUfWYLDwUzc80gmq3oP/oD9:IKse1M9ZkiAPjr/0O8/o5

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 (96) 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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\9098311a0769abc9228747193c020e94.exe\""	9098311a0769abc9228747193c020e94.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	9098311a0769abc9228747193c020e94.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	9098311a0769abc9228747193c020e94.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	9098311a0769abc9228747193c020e94.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	9098311a0769abc9228747193c020e94.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	9098311a0769abc9228747193c020e94.exe

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
6	api.ipify.org
7	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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	9098311a0769abc9228747193c020e94.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4160	3376	WerFault.exe	14
1948	3376	WerFault.exe	14

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3376	9098311a0769abc9228747193c020e94.exe
3376	9098311a0769abc9228747193c020e94.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	3376	9098311a0769abc9228747193c020e94.exe
Token: SeIncreaseQuotaPrivilege	3076	WMIC.exe
Token: SeSecurityPrivilege	3076	WMIC.exe
Token: SeTakeOwnershipPrivilege	3076	WMIC.exe
Token: SeLoadDriverPrivilege	3076	WMIC.exe
Token: SeSystemProfilePrivilege	3076	WMIC.exe
Token: SeSystemtimePrivilege	3076	WMIC.exe
Token: SeProfSingleProcessPrivilege	3076	WMIC.exe
Token: SeIncBasePriorityPrivilege	3076	WMIC.exe
Token: SeCreatePagefilePrivilege	3076	WMIC.exe
Token: SeBackupPrivilege	3076	WMIC.exe
Token: SeRestorePrivilege	3076	WMIC.exe
Token: SeShutdownPrivilege	3076	WMIC.exe
Token: SeDebugPrivilege	3076	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3076	WMIC.exe
Token: SeRemoteShutdownPrivilege	3076	WMIC.exe
Token: SeUndockPrivilege	3076	WMIC.exe
Token: SeManageVolumePrivilege	3076	WMIC.exe
Token: 33	3076	WMIC.exe
Token: 34	3076	WMIC.exe
Token: 35	3076	WMIC.exe
Token: 36	3076	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3076	WMIC.exe
Token: SeSecurityPrivilege	3076	WMIC.exe
Token: SeTakeOwnershipPrivilege	3076	WMIC.exe
Token: SeLoadDriverPrivilege	3076	WMIC.exe
Token: SeSystemProfilePrivilege	3076	WMIC.exe
Token: SeSystemtimePrivilege	3076	WMIC.exe
Token: SeProfSingleProcessPrivilege	3076	WMIC.exe
Token: SeIncBasePriorityPrivilege	3076	WMIC.exe
Token: SeCreatePagefilePrivilege	3076	WMIC.exe
Token: SeBackupPrivilege	3076	WMIC.exe
Token: SeRestorePrivilege	3076	WMIC.exe
Token: SeShutdownPrivilege	3076	WMIC.exe
Token: SeDebugPrivilege	3076	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3076	WMIC.exe
Token: SeRemoteShutdownPrivilege	3076	WMIC.exe
Token: SeUndockPrivilege	3076	WMIC.exe
Token: SeManageVolumePrivilege	3076	WMIC.exe
Token: 33	3076	WMIC.exe
Token: 34	3076	WMIC.exe
Token: 35	3076	WMIC.exe
Token: 36	3076	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 3996	3376	9098311a0769abc9228747193c020e94.exe	85
PID 3376 wrote to memory of 3996	3376	9098311a0769abc9228747193c020e94.exe	85
PID 3376 wrote to memory of 3996	3376	9098311a0769abc9228747193c020e94.exe	85
PID 3996 wrote to memory of 3076	3996	cmd.exe	87
PID 3996 wrote to memory of 3076	3996	cmd.exe	87
PID 3996 wrote to memory of 3076	3996	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\9098311a0769abc9228747193c020e94.exe
"C:\Users\Admin\AppData\Local\Temp\9098311a0769abc9228747193c020e94.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:3376
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3996
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3376 -s 1960
  2⤵
  - Program crash
  PID:4160
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3376 -s 1960
  2⤵
  - Program crash
  PID:1948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3376 -ip 3376
1⤵
PID:900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3376 -ip 3376
1⤵
PID:4956

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

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/3376-0-0x0000000000920000-0x0000000000936000-memory.dmp

Filesize
88KB

Download
memory/3376-1-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/3376-2-0x00000000057D0000-0x0000000005D74000-memory.dmp

Filesize
5.6MB

Download
memory/3376-3-0x0000000005320000-0x00000000053B2000-memory.dmp

Filesize
584KB

Download
memory/3376-4-0x00000000052F0000-0x0000000005300000-memory.dmp

Filesize
64KB

Download
memory/3376-54-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/3376-60-0x00000000052F0000-0x0000000005300000-memory.dmp

Filesize
64KB

Download
memory/3376-105-0x0000000006030000-0x000000000603A000-memory.dmp

Filesize
40KB

Download
memory/3376-106-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download