nitro | 86ade3c887b60e3acb896236eb9cb11508140f9eb2e551e309006b04dd3dc645

Resubmissions

30-06-2023 03:23

230630-dxn9hagh4t 10

30-06-2023 03:00

230630-dhqh1sgh3s 10

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20230621-en
resource tags

arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
submitted
30-06-2023 03:00

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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 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File created	C:\Users\Admin\Pictures\ConvertToAssert.png.givemenitro	NitroRansomware.exe
File created	C:\Users\Admin\Pictures\OpenGrant.crw.givemenitro	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-1-5-21-3950455397-3229124517-1686476975-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NitroRansomware.exe\""	NitroRansomware.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\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

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
3	api.ipify.org
4	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3950455397-3229124517-1686476975-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	NitroRansomware.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3950455397-3229124517-1686476975-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	NitroRansomware.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1312	NitroRansomware.exe
1312	NitroRansomware.exe

Suspicious use of AdjustPrivilegeToken 45 IoCs

description	pid	Process
Token: SeDebugPrivilege	1312	NitroRansomware.exe
Token: SeIncreaseQuotaPrivilege	1044	WMIC.exe
Token: SeSecurityPrivilege	1044	WMIC.exe
Token: SeTakeOwnershipPrivilege	1044	WMIC.exe
Token: SeLoadDriverPrivilege	1044	WMIC.exe
Token: SeSystemProfilePrivilege	1044	WMIC.exe
Token: SeSystemtimePrivilege	1044	WMIC.exe
Token: SeProfSingleProcessPrivilege	1044	WMIC.exe
Token: SeIncBasePriorityPrivilege	1044	WMIC.exe
Token: SeCreatePagefilePrivilege	1044	WMIC.exe
Token: SeBackupPrivilege	1044	WMIC.exe
Token: SeRestorePrivilege	1044	WMIC.exe
Token: SeShutdownPrivilege	1044	WMIC.exe
Token: SeDebugPrivilege	1044	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1044	WMIC.exe
Token: SeRemoteShutdownPrivilege	1044	WMIC.exe
Token: SeUndockPrivilege	1044	WMIC.exe
Token: SeManageVolumePrivilege	1044	WMIC.exe
Token: 33	1044	WMIC.exe
Token: 34	1044	WMIC.exe
Token: 35	1044	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1044	WMIC.exe
Token: SeSecurityPrivilege	1044	WMIC.exe
Token: SeTakeOwnershipPrivilege	1044	WMIC.exe
Token: SeLoadDriverPrivilege	1044	WMIC.exe
Token: SeSystemProfilePrivilege	1044	WMIC.exe
Token: SeSystemtimePrivilege	1044	WMIC.exe
Token: SeProfSingleProcessPrivilege	1044	WMIC.exe
Token: SeIncBasePriorityPrivilege	1044	WMIC.exe
Token: SeCreatePagefilePrivilege	1044	WMIC.exe
Token: SeBackupPrivilege	1044	WMIC.exe
Token: SeRestorePrivilege	1044	WMIC.exe
Token: SeShutdownPrivilege	1044	WMIC.exe
Token: SeDebugPrivilege	1044	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1044	WMIC.exe
Token: SeRemoteShutdownPrivilege	1044	WMIC.exe
Token: SeUndockPrivilege	1044	WMIC.exe
Token: SeManageVolumePrivilege	1044	WMIC.exe
Token: 33	1044	WMIC.exe
Token: 34	1044	WMIC.exe
Token: 35	1044	WMIC.exe
Token: 33	1168	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1168	AUDIODG.EXE
Token: 33	1168	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1168	AUDIODG.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 1972	1312	NitroRansomware.exe	27
PID 1312 wrote to memory of 1972	1312	NitroRansomware.exe	27
PID 1312 wrote to memory of 1972	1312	NitroRansomware.exe	27
PID 1312 wrote to memory of 1972	1312	NitroRansomware.exe	27
PID 1972 wrote to memory of 1044	1972	cmd.exe	29
PID 1972 wrote to memory of 1044	1972	cmd.exe	29
PID 1972 wrote to memory of 1044	1972	cmd.exe	29
PID 1972 wrote to memory of 1044	1972	cmd.exe	29

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:1312
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1044

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:568

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4d8
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1168

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/1312-54-0x0000000001000000-0x0000000001016000-memory.dmp

Filesize
88KB

Download
memory/1312-55-0x0000000000AF0000-0x0000000000B30000-memory.dmp

Filesize
256KB

Download
memory/1312-56-0x0000000000AF0000-0x0000000000B30000-memory.dmp

Filesize
256KB

Download
memory/1312-136-0x0000000000AF0000-0x0000000000B30000-memory.dmp

Filesize
256KB

Download
memory/1312-137-0x0000000000AF0000-0x0000000000B30000-memory.dmp

Filesize
256KB

Download