nitro | 86ade3c887b60e3acb896236eb9cb11508140f9eb2e551e309006b04dd3dc645

Resubmissions

30-06-2023 03:23

230630-dxn9hagh4t 10

30-06-2023 03:00

230630-dhqh1sgh3s 10

Analysis

max time kernel
107s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2023 03:23

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General

Target

NitroRansomware.exe
Size

61KB
MD5

f34e35e3380bd7b8744a0468c3b6c5f6
SHA1

52cfedab61625567d963a6e5bfa89ff128571796
SHA256

86ade3c887b60e3acb896236eb9cb11508140f9eb2e551e309006b04dd3dc645
SHA512

e0361b40017c7b39fc928d93b1d3e119393a676f61147ebf158c95013bb9f11b769d3416c508ffc894f3ae2f9510f490a303933573137b154685c08da66d37b7
SSDEEP

768:aKsMqCXfVcWlzM9ZkiANIUakYLDwUzc80gmq3oP/oDD:aKse1M9ZkiAPYr/0O8/o/

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

Modifies extensions of user files 5 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File created	C:\Users\Admin\Pictures\SearchSwitch.png.givemenitro	NitroRansomware.exe
File created	C:\Users\Admin\Pictures\UnblockCompress.raw.givemenitro	NitroRansomware.exe
File created	C:\Users\Admin\Pictures\GetBackup.png.givemenitro	NitroRansomware.exe
File created	C:\Users\Admin\Pictures\GrantUnregister.tiff.givemenitro	NitroRansomware.exe
File opened for modification	C:\Users\Admin\Pictures\GrantUnregister.tiff	NitroRansomware.exe

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
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NitroRansomware.exe\""	NitroRansomware.exe

Drops desktop.ini file(s) 5 IoCs

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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
19	api.ipify.org
20	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-1-5-21-508929744-1894537824-211734425-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	NitroRansomware.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4124	1360	WerFault.exe	84
1164	1360	WerFault.exe	84

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1360	NitroRansomware.exe
1360	NitroRansomware.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	1360	NitroRansomware.exe
Token: SeIncreaseQuotaPrivilege	3116	WMIC.exe
Token: SeSecurityPrivilege	3116	WMIC.exe
Token: SeTakeOwnershipPrivilege	3116	WMIC.exe
Token: SeLoadDriverPrivilege	3116	WMIC.exe
Token: SeSystemProfilePrivilege	3116	WMIC.exe
Token: SeSystemtimePrivilege	3116	WMIC.exe
Token: SeProfSingleProcessPrivilege	3116	WMIC.exe
Token: SeIncBasePriorityPrivilege	3116	WMIC.exe
Token: SeCreatePagefilePrivilege	3116	WMIC.exe
Token: SeBackupPrivilege	3116	WMIC.exe
Token: SeRestorePrivilege	3116	WMIC.exe
Token: SeShutdownPrivilege	3116	WMIC.exe
Token: SeDebugPrivilege	3116	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3116	WMIC.exe
Token: SeRemoteShutdownPrivilege	3116	WMIC.exe
Token: SeUndockPrivilege	3116	WMIC.exe
Token: SeManageVolumePrivilege	3116	WMIC.exe
Token: 33	3116	WMIC.exe
Token: 34	3116	WMIC.exe
Token: 35	3116	WMIC.exe
Token: 36	3116	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3116	WMIC.exe
Token: SeSecurityPrivilege	3116	WMIC.exe
Token: SeTakeOwnershipPrivilege	3116	WMIC.exe
Token: SeLoadDriverPrivilege	3116	WMIC.exe
Token: SeSystemProfilePrivilege	3116	WMIC.exe
Token: SeSystemtimePrivilege	3116	WMIC.exe
Token: SeProfSingleProcessPrivilege	3116	WMIC.exe
Token: SeIncBasePriorityPrivilege	3116	WMIC.exe
Token: SeCreatePagefilePrivilege	3116	WMIC.exe
Token: SeBackupPrivilege	3116	WMIC.exe
Token: SeRestorePrivilege	3116	WMIC.exe
Token: SeShutdownPrivilege	3116	WMIC.exe
Token: SeDebugPrivilege	3116	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3116	WMIC.exe
Token: SeRemoteShutdownPrivilege	3116	WMIC.exe
Token: SeUndockPrivilege	3116	WMIC.exe
Token: SeManageVolumePrivilege	3116	WMIC.exe
Token: 33	3116	WMIC.exe
Token: 34	3116	WMIC.exe
Token: 35	3116	WMIC.exe
Token: 36	3116	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1360 wrote to memory of 1840	1360	NitroRansomware.exe	85
PID 1360 wrote to memory of 1840	1360	NitroRansomware.exe	85
PID 1360 wrote to memory of 1840	1360	NitroRansomware.exe	85
PID 1840 wrote to memory of 3116	1840	cmd.exe	87
PID 1840 wrote to memory of 3116	1840	cmd.exe	87
PID 1840 wrote to memory of 3116	1840	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\NitroRansomware.exe
"C:\Users\Admin\AppData\Local\Temp\NitroRansomware.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:1360
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1840
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 2200
  2⤵
  - Program crash
  PID:4124
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 2200
  2⤵
  - Program crash
  PID:1164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1360 -ip 1360
1⤵
PID:1296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1360 -ip 1360
1⤵
PID:1220

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Web Service

T1102

Credential Access

Credentials in Files

T1081

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/1360-133-0x0000000000F70000-0x0000000000F86000-memory.dmp

Filesize
88KB

Download
memory/1360-134-0x0000000005E80000-0x0000000006424000-memory.dmp

Filesize
5.6MB

Download
memory/1360-135-0x0000000005970000-0x0000000005A02000-memory.dmp

Filesize
584KB

Download
memory/1360-136-0x0000000005960000-0x0000000005970000-memory.dmp

Filesize
64KB

Download
memory/1360-149-0x0000000005960000-0x0000000005970000-memory.dmp

Filesize
64KB

Download
memory/1360-227-0x00000000066A0000-0x00000000066AA000-memory.dmp

Filesize
40KB

Download