nitro | beaddc303ac98868c299807322cfda81ef519ecf452444393c5478a04e0cb38f

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04-03-2024 02:09

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General

Target

b0f5de53b7131c8486445c880a3efcab.exe
Size

61KB
MD5

b0f5de53b7131c8486445c880a3efcab
SHA1

c4bccf5722cda8d75254827715ce33259218cdf4
SHA256

beaddc303ac98868c299807322cfda81ef519ecf452444393c5478a04e0cb38f
SHA512

3449ae984fc408b404f712df597bb6b4104e100df974d6ebb59f4eb91b59934696cce2ecbf61a6a79057293886916d463017dc5de60ea93579b86b105f20ba94
SSDEEP

768:gKsMqCXfVcWTjM9ZkiANIUZ0hYLDwUzc80gmq3oP/oDX:gKsenM9ZkiAPZBr/0O8/oL

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 (89) 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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\b0f5de53b7131c8486445c880a3efcab.exe\""	b0f5de53b7131c8486445c880a3efcab.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	b0f5de53b7131c8486445c880a3efcab.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	b0f5de53b7131c8486445c880a3efcab.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	b0f5de53b7131c8486445c880a3efcab.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
2	api.ipify.org
3	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-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	b0f5de53b7131c8486445c880a3efcab.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	b0f5de53b7131c8486445c880a3efcab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1624	b0f5de53b7131c8486445c880a3efcab.exe
1624	b0f5de53b7131c8486445c880a3efcab.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	b0f5de53b7131c8486445c880a3efcab.exe
Token: SeIncreaseQuotaPrivilege	2932	WMIC.exe
Token: SeSecurityPrivilege	2932	WMIC.exe
Token: SeTakeOwnershipPrivilege	2932	WMIC.exe
Token: SeLoadDriverPrivilege	2932	WMIC.exe
Token: SeSystemProfilePrivilege	2932	WMIC.exe
Token: SeSystemtimePrivilege	2932	WMIC.exe
Token: SeProfSingleProcessPrivilege	2932	WMIC.exe
Token: SeIncBasePriorityPrivilege	2932	WMIC.exe
Token: SeCreatePagefilePrivilege	2932	WMIC.exe
Token: SeBackupPrivilege	2932	WMIC.exe
Token: SeRestorePrivilege	2932	WMIC.exe
Token: SeShutdownPrivilege	2932	WMIC.exe
Token: SeDebugPrivilege	2932	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2932	WMIC.exe
Token: SeRemoteShutdownPrivilege	2932	WMIC.exe
Token: SeUndockPrivilege	2932	WMIC.exe
Token: SeManageVolumePrivilege	2932	WMIC.exe
Token: 33	2932	WMIC.exe
Token: 34	2932	WMIC.exe
Token: 35	2932	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2932	WMIC.exe
Token: SeSecurityPrivilege	2932	WMIC.exe
Token: SeTakeOwnershipPrivilege	2932	WMIC.exe
Token: SeLoadDriverPrivilege	2932	WMIC.exe
Token: SeSystemProfilePrivilege	2932	WMIC.exe
Token: SeSystemtimePrivilege	2932	WMIC.exe
Token: SeProfSingleProcessPrivilege	2932	WMIC.exe
Token: SeIncBasePriorityPrivilege	2932	WMIC.exe
Token: SeCreatePagefilePrivilege	2932	WMIC.exe
Token: SeBackupPrivilege	2932	WMIC.exe
Token: SeRestorePrivilege	2932	WMIC.exe
Token: SeShutdownPrivilege	2932	WMIC.exe
Token: SeDebugPrivilege	2932	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2932	WMIC.exe
Token: SeRemoteShutdownPrivilege	2932	WMIC.exe
Token: SeUndockPrivilege	2932	WMIC.exe
Token: SeManageVolumePrivilege	2932	WMIC.exe
Token: 33	2932	WMIC.exe
Token: 34	2932	WMIC.exe
Token: 35	2932	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 928	1624	b0f5de53b7131c8486445c880a3efcab.exe	28
PID 1624 wrote to memory of 928	1624	b0f5de53b7131c8486445c880a3efcab.exe	28
PID 1624 wrote to memory of 928	1624	b0f5de53b7131c8486445c880a3efcab.exe	28
PID 1624 wrote to memory of 928	1624	b0f5de53b7131c8486445c880a3efcab.exe	28
PID 928 wrote to memory of 2932	928	cmd.exe	30
PID 928 wrote to memory of 2932	928	cmd.exe	30
PID 928 wrote to memory of 2932	928	cmd.exe	30
PID 928 wrote to memory of 2932	928	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\b0f5de53b7131c8486445c880a3efcab.exe
"C:\Users\Admin\AppData\Local\Temp\b0f5de53b7131c8486445c880a3efcab.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:1624
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:928
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2932

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/1624-0-0x00000000008B0000-0x00000000008C6000-memory.dmp

Filesize
88KB

Download
memory/1624-1-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/1624-2-0x0000000002000000-0x0000000002040000-memory.dmp

Filesize
256KB

Download
memory/1624-29-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/1624-33-0x0000000002000000-0x0000000002040000-memory.dmp

Filesize
256KB

Download
memory/1624-97-0x0000000002000000-0x0000000002040000-memory.dmp

Filesize
256KB

Download
memory/1624-98-0x0000000002000000-0x0000000002040000-memory.dmp

Filesize
256KB

Download