nitro | e179f228bff619054e5f1b541afd7d57ba357562518a1490c1604024c50d481a

Analysis

max time kernel
117s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2024 18:11

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General

Target

5140eb423450693d58b6dc0b9607ec12.exe
Size

62KB
MD5

5140eb423450693d58b6dc0b9607ec12
SHA1

be85df18233c01ba73de65bbaf4b21aea298ba68
SHA256

e179f228bff619054e5f1b541afd7d57ba357562518a1490c1604024c50d481a
SHA512

cee13b7dc4819db782867df01f961ea5f9b771952615ea7b01c6c36cedd6eb16408e3d9d2455a905103df20ae4be289a433688f6d5cea68645ec8ecdfb6df6b4
SSDEEP

768:PEN8AJTO7baeJvANIESkwILDwUzc80gmq3oP/oDq:PENpOCMvAx9xr/0O8/oW

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 (97) 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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\5140eb423450693d58b6dc0b9607ec12.exe\""	5140eb423450693d58b6dc0b9607ec12.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	5140eb423450693d58b6dc0b9607ec12.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	5140eb423450693d58b6dc0b9607ec12.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	5140eb423450693d58b6dc0b9607ec12.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	5140eb423450693d58b6dc0b9607ec12.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	5140eb423450693d58b6dc0b9607ec12.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
5	api.ipify.org
4	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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	5140eb423450693d58b6dc0b9607ec12.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2320	2812	WerFault.exe	14
3648	2812	WerFault.exe	14

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2812	5140eb423450693d58b6dc0b9607ec12.exe
2812	5140eb423450693d58b6dc0b9607ec12.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	5140eb423450693d58b6dc0b9607ec12.exe
Token: SeIncreaseQuotaPrivilege	1372	WMIC.exe
Token: SeSecurityPrivilege	1372	WMIC.exe
Token: SeTakeOwnershipPrivilege	1372	WMIC.exe
Token: SeLoadDriverPrivilege	1372	WMIC.exe
Token: SeSystemProfilePrivilege	1372	WMIC.exe
Token: SeSystemtimePrivilege	1372	WMIC.exe
Token: SeProfSingleProcessPrivilege	1372	WMIC.exe
Token: SeIncBasePriorityPrivilege	1372	WMIC.exe
Token: SeCreatePagefilePrivilege	1372	WMIC.exe
Token: SeBackupPrivilege	1372	WMIC.exe
Token: SeRestorePrivilege	1372	WMIC.exe
Token: SeShutdownPrivilege	1372	WMIC.exe
Token: SeDebugPrivilege	1372	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1372	WMIC.exe
Token: SeRemoteShutdownPrivilege	1372	WMIC.exe
Token: SeUndockPrivilege	1372	WMIC.exe
Token: SeManageVolumePrivilege	1372	WMIC.exe
Token: 33	1372	WMIC.exe
Token: 34	1372	WMIC.exe
Token: 35	1372	WMIC.exe
Token: 36	1372	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1372	WMIC.exe
Token: SeSecurityPrivilege	1372	WMIC.exe
Token: SeTakeOwnershipPrivilege	1372	WMIC.exe
Token: SeLoadDriverPrivilege	1372	WMIC.exe
Token: SeSystemProfilePrivilege	1372	WMIC.exe
Token: SeSystemtimePrivilege	1372	WMIC.exe
Token: SeProfSingleProcessPrivilege	1372	WMIC.exe
Token: SeIncBasePriorityPrivilege	1372	WMIC.exe
Token: SeCreatePagefilePrivilege	1372	WMIC.exe
Token: SeBackupPrivilege	1372	WMIC.exe
Token: SeRestorePrivilege	1372	WMIC.exe
Token: SeShutdownPrivilege	1372	WMIC.exe
Token: SeDebugPrivilege	1372	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1372	WMIC.exe
Token: SeRemoteShutdownPrivilege	1372	WMIC.exe
Token: SeUndockPrivilege	1372	WMIC.exe
Token: SeManageVolumePrivilege	1372	WMIC.exe
Token: 33	1372	WMIC.exe
Token: 34	1372	WMIC.exe
Token: 35	1372	WMIC.exe
Token: 36	1372	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 2780	2812	5140eb423450693d58b6dc0b9607ec12.exe	39
PID 2812 wrote to memory of 2780	2812	5140eb423450693d58b6dc0b9607ec12.exe	39
PID 2812 wrote to memory of 2780	2812	5140eb423450693d58b6dc0b9607ec12.exe	39
PID 2780 wrote to memory of 1372	2780	cmd.exe	37
PID 2780 wrote to memory of 1372	2780	cmd.exe	37
PID 2780 wrote to memory of 1372	2780	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\5140eb423450693d58b6dc0b9607ec12.exe
"C:\Users\Admin\AppData\Local\Temp\5140eb423450693d58b6dc0b9607ec12.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:2812
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 1996
  2⤵
  - Program crash
  PID:2320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 1984
  2⤵
  - Program crash
  PID:3648

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic csproduct get uuid
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2812 -ip 2812
1⤵
PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2812 -ip 2812
1⤵
PID:4660

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/2812-1-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download
memory/2812-0-0x0000000000FA0000-0x0000000000FB6000-memory.dmp

Filesize
88KB

Download
memory/2812-2-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/2812-3-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/2812-4-0x0000000005A80000-0x0000000005A90000-memory.dmp

Filesize
64KB

Download
memory/2812-41-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download
memory/2812-49-0x0000000005A80000-0x0000000005A90000-memory.dmp

Filesize
64KB

Download
memory/2812-106-0x00000000065C0000-0x00000000065CA000-memory.dmp

Filesize
40KB

Download
memory/2812-107-0x0000000074E30000-0x00000000755E0000-memory.dmp

Filesize
7.7MB

Download