nitro | 85de0898ff39ffa8fce097fa675551106ec38e47c93dfc8cd2d35f460a0d9eac

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25-02-2024 10:05

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General

Target

a382153ad18d0c95006b5c4c197efca5.exe
Size

61KB
MD5

a382153ad18d0c95006b5c4c197efca5
SHA1

6f8b2a57b75d20c2c9707dfe8e3c0a2c8a1380c5
SHA256

85de0898ff39ffa8fce097fa675551106ec38e47c93dfc8cd2d35f460a0d9eac
SHA512

703eb3fc51ae49576d9055335af1495ed0b4d4c01b7c2ad5952dd127f882df21eb88d3c7bad4cea2478399b79c8485b13011324b88593c0517c7f0178f356e74
SSDEEP

768:vnmqruBPuQDuKZBQA0KadVR2LDwUzc80gmq3oP/oDn:vncTpO74r/0O8/oD

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 (75) 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-1-5-21-1790404759-2178872477-2616469472-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a382153ad18d0c95006b5c4c197efca5.exe\""	a382153ad18d0c95006b5c4c197efca5.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	a382153ad18d0c95006b5c4c197efca5.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	a382153ad18d0c95006b5c4c197efca5.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	a382153ad18d0c95006b5c4c197efca5.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	a382153ad18d0c95006b5c4c197efca5.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	a382153ad18d0c95006b5c4c197efca5.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
24	api.ipify.org
26	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-1-5-21-1790404759-2178872477-2616469472-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	a382153ad18d0c95006b5c4c197efca5.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2052	4884	WerFault.exe	84
1760	4884	WerFault.exe	84

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4884	a382153ad18d0c95006b5c4c197efca5.exe
4884	a382153ad18d0c95006b5c4c197efca5.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4884	a382153ad18d0c95006b5c4c197efca5.exe
Token: SeIncreaseQuotaPrivilege	4168	WMIC.exe
Token: SeSecurityPrivilege	4168	WMIC.exe
Token: SeTakeOwnershipPrivilege	4168	WMIC.exe
Token: SeLoadDriverPrivilege	4168	WMIC.exe
Token: SeSystemProfilePrivilege	4168	WMIC.exe
Token: SeSystemtimePrivilege	4168	WMIC.exe
Token: SeProfSingleProcessPrivilege	4168	WMIC.exe
Token: SeIncBasePriorityPrivilege	4168	WMIC.exe
Token: SeCreatePagefilePrivilege	4168	WMIC.exe
Token: SeBackupPrivilege	4168	WMIC.exe
Token: SeRestorePrivilege	4168	WMIC.exe
Token: SeShutdownPrivilege	4168	WMIC.exe
Token: SeDebugPrivilege	4168	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4168	WMIC.exe
Token: SeRemoteShutdownPrivilege	4168	WMIC.exe
Token: SeUndockPrivilege	4168	WMIC.exe
Token: SeManageVolumePrivilege	4168	WMIC.exe
Token: 33	4168	WMIC.exe
Token: 34	4168	WMIC.exe
Token: 35	4168	WMIC.exe
Token: 36	4168	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4168	WMIC.exe
Token: SeSecurityPrivilege	4168	WMIC.exe
Token: SeTakeOwnershipPrivilege	4168	WMIC.exe
Token: SeLoadDriverPrivilege	4168	WMIC.exe
Token: SeSystemProfilePrivilege	4168	WMIC.exe
Token: SeSystemtimePrivilege	4168	WMIC.exe
Token: SeProfSingleProcessPrivilege	4168	WMIC.exe
Token: SeIncBasePriorityPrivilege	4168	WMIC.exe
Token: SeCreatePagefilePrivilege	4168	WMIC.exe
Token: SeBackupPrivilege	4168	WMIC.exe
Token: SeRestorePrivilege	4168	WMIC.exe
Token: SeShutdownPrivilege	4168	WMIC.exe
Token: SeDebugPrivilege	4168	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4168	WMIC.exe
Token: SeRemoteShutdownPrivilege	4168	WMIC.exe
Token: SeUndockPrivilege	4168	WMIC.exe
Token: SeManageVolumePrivilege	4168	WMIC.exe
Token: 33	4168	WMIC.exe
Token: 34	4168	WMIC.exe
Token: 35	4168	WMIC.exe
Token: 36	4168	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 244	4884	a382153ad18d0c95006b5c4c197efca5.exe	88
PID 4884 wrote to memory of 244	4884	a382153ad18d0c95006b5c4c197efca5.exe	88
PID 4884 wrote to memory of 244	4884	a382153ad18d0c95006b5c4c197efca5.exe	88
PID 244 wrote to memory of 4168	244	cmd.exe	90
PID 244 wrote to memory of 4168	244	cmd.exe	90
PID 244 wrote to memory of 4168	244	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\a382153ad18d0c95006b5c4c197efca5.exe
"C:\Users\Admin\AppData\Local\Temp\a382153ad18d0c95006b5c4c197efca5.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:4884
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:244
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 2304
  2⤵
  - Program crash
  PID:2052
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 2324
  2⤵
  - Program crash
  PID:1760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4884 -ip 4884
1⤵
PID:4848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4884 -ip 4884
1⤵
PID:1436

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/4884-0-0x00000000005A0000-0x00000000005B6000-memory.dmp

Filesize
88KB

Download
memory/4884-1-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4884-2-0x00000000054B0000-0x0000000005A54000-memory.dmp

Filesize
5.6MB

Download
memory/4884-3-0x0000000004FA0000-0x0000000005032000-memory.dmp

Filesize
584KB

Download
memory/4884-4-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/4884-43-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4884-49-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/4884-84-0x0000000005D50000-0x0000000005D5A000-memory.dmp

Filesize
40KB

Download
memory/4884-85-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download