nitro | 5728cda6365347f792106d8826d9ebdfaf9d8cc40cec5cf0ef21e6584e81d5af

General

Target

21b111a98beb3fade37bdff4abd0e8ce.exe
Size

61KB
MD5

21b111a98beb3fade37bdff4abd0e8ce
SHA1

b74d2e4477efc84bf239a1a780fb59f10ac7f371
SHA256

5728cda6365347f792106d8826d9ebdfaf9d8cc40cec5cf0ef21e6584e81d5af
SHA512

9933ad28242e7712df2fd667153d32b3576d25ed3d7460c329aa56662e0749d0313e83bcdbb4d9c0e8923edd1d95aac188afbc84c3a6f3b1f552726b4761aea5

Score

10^/10

nitro persistence ransomware

Malware Config

Signatures

Nitro
A ransomware that demands Discord nitro gift codes to decrypt files.
ransomware nitro

Modifies extensions of user files 4 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

21b111a98beb3fade37bdff4abd0e8ce.exe

description	ioc	process
File created	C:\Users\Admin\Pictures\BackupRedo.tif.givemenitro	21b111a98beb3fade37bdff4abd0e8ce.exe
File created	C:\Users\Admin\Pictures\JoinEnable.tif.givemenitro	21b111a98beb3fade37bdff4abd0e8ce.exe
File created	C:\Users\Admin\Pictures\SuspendRestore.png.givemenitro	21b111a98beb3fade37bdff4abd0e8ce.exe
File created	C:\Users\Admin\Pictures\TraceConvertFrom.png.givemenitro	21b111a98beb3fade37bdff4abd0e8ce.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

21b111a98beb3fade37bdff4abd0e8ce.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\21b111a98beb3fade37bdff4abd0e8ce.exe\""	21b111a98beb3fade37bdff4abd0e8ce.exe

Drops desktop.ini file(s) 5 IoCs

Processes:

21b111a98beb3fade37bdff4abd0e8ce.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	21b111a98beb3fade37bdff4abd0e8ce.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	21b111a98beb3fade37bdff4abd0e8ce.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	21b111a98beb3fade37bdff4abd0e8ce.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	21b111a98beb3fade37bdff4abd0e8ce.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	21b111a98beb3fade37bdff4abd0e8ce.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.

Processes:

flow ioc

8 api.ipify.org
9 api.ipify.org

flow	ioc
8	api.ipify.org
9	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

21b111a98beb3fade37bdff4abd0e8ce.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	21b111a98beb3fade37bdff4abd0e8ce.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

21b111a98beb3fade37bdff4abd0e8ce.exe

pid process

3728 21b111a98beb3fade37bdff4abd0e8ce.exe
3728 21b111a98beb3fade37bdff4abd0e8ce.exe

pid	process
3728	21b111a98beb3fade37bdff4abd0e8ce.exe
3728	21b111a98beb3fade37bdff4abd0e8ce.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

21b111a98beb3fade37bdff4abd0e8ce.exeWMIC.exe

description	pid	process
Token: SeDebugPrivilege	3728	21b111a98beb3fade37bdff4abd0e8ce.exe
Token: SeIncreaseQuotaPrivilege	4008	WMIC.exe
Token: SeSecurityPrivilege	4008	WMIC.exe
Token: SeTakeOwnershipPrivilege	4008	WMIC.exe
Token: SeLoadDriverPrivilege	4008	WMIC.exe
Token: SeSystemProfilePrivilege	4008	WMIC.exe
Token: SeSystemtimePrivilege	4008	WMIC.exe
Token: SeProfSingleProcessPrivilege	4008	WMIC.exe
Token: SeIncBasePriorityPrivilege	4008	WMIC.exe
Token: SeCreatePagefilePrivilege	4008	WMIC.exe
Token: SeBackupPrivilege	4008	WMIC.exe
Token: SeRestorePrivilege	4008	WMIC.exe
Token: SeShutdownPrivilege	4008	WMIC.exe
Token: SeDebugPrivilege	4008	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4008	WMIC.exe
Token: SeRemoteShutdownPrivilege	4008	WMIC.exe
Token: SeUndockPrivilege	4008	WMIC.exe
Token: SeManageVolumePrivilege	4008	WMIC.exe
Token: 33	4008	WMIC.exe
Token: 34	4008	WMIC.exe
Token: 35	4008	WMIC.exe
Token: 36	4008	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4008	WMIC.exe
Token: SeSecurityPrivilege	4008	WMIC.exe
Token: SeTakeOwnershipPrivilege	4008	WMIC.exe
Token: SeLoadDriverPrivilege	4008	WMIC.exe
Token: SeSystemProfilePrivilege	4008	WMIC.exe
Token: SeSystemtimePrivilege	4008	WMIC.exe
Token: SeProfSingleProcessPrivilege	4008	WMIC.exe
Token: SeIncBasePriorityPrivilege	4008	WMIC.exe
Token: SeCreatePagefilePrivilege	4008	WMIC.exe
Token: SeBackupPrivilege	4008	WMIC.exe
Token: SeRestorePrivilege	4008	WMIC.exe
Token: SeShutdownPrivilege	4008	WMIC.exe
Token: SeDebugPrivilege	4008	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4008	WMIC.exe
Token: SeRemoteShutdownPrivilege	4008	WMIC.exe
Token: SeUndockPrivilege	4008	WMIC.exe
Token: SeManageVolumePrivilege	4008	WMIC.exe
Token: 33	4008	WMIC.exe
Token: 34	4008	WMIC.exe
Token: 35	4008	WMIC.exe
Token: 36	4008	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

21b111a98beb3fade37bdff4abd0e8ce.execmd.exe

description	pid	process	target process
PID 3728 wrote to memory of 2824	3728	21b111a98beb3fade37bdff4abd0e8ce.exe	cmd.exe
PID 3728 wrote to memory of 2824	3728	21b111a98beb3fade37bdff4abd0e8ce.exe	cmd.exe
PID 3728 wrote to memory of 2824	3728	21b111a98beb3fade37bdff4abd0e8ce.exe	cmd.exe
PID 2824 wrote to memory of 4008	2824	cmd.exe	WMIC.exe
PID 2824 wrote to memory of 4008	2824	cmd.exe	WMIC.exe
PID 2824 wrote to memory of 4008	2824	cmd.exe	WMIC.exe

C:\Users\Admin\AppData\Local\Temp\21b111a98beb3fade37bdff4abd0e8ce.exe
"C:\Users\Admin\AppData\Local\Temp\21b111a98beb3fade37bdff4abd0e8ce.exe"
1⤵
- Modifies extensions of user files
- 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:3728

C:\Windows\SysWOW64\cmd.exe
"cmd.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2824

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic csproduct get uuid
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:4008

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1

T1491

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Downloads

memory/2824-118-0x0000000000000000-mapping.dmp

Download
memory/3728-114-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/3728-116-0x0000000005090000-0x0000000005091000-memory.dmp

Filesize
4KB

Download
memory/3728-117-0x0000000004C80000-0x0000000004C81000-memory.dmp

Filesize
4KB

Download
memory/3728-120-0x0000000004B90000-0x000000000508E000-memory.dmp

Filesize
5.0MB

Download
memory/3728-121-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

Filesize
4KB

Download
memory/3728-122-0x0000000004B90000-0x000000000508E000-memory.dmp

Filesize
5.0MB

Download
memory/3728-123-0x0000000004B90000-0x000000000508E000-memory.dmp

Filesize
5.0MB

Download
memory/4008-119-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads