nitro | 73d55d99c41e89daa8c9bd213d02974d89b53c3e5a0dcd5bbf0b99ff36424cac

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2024 20:32

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General

Target

92eea22c70cf0fe4116b1021e91eb373.exe
Size

61KB
MD5

92eea22c70cf0fe4116b1021e91eb373
SHA1

66b8c24be3b82ecbbebb5e5a70ddf746d212e16f
SHA256

73d55d99c41e89daa8c9bd213d02974d89b53c3e5a0dcd5bbf0b99ff36424cac
SHA512

b8d2b6bba4027bda2ac3ef09c346a1e8ee768afb990bcacbd860bbead42a420303814e4f4081a32b81f89085b53879f7ce888c864cf34654a7c066facb44d035
SSDEEP

768:HKsMqCXfVcWO/M9ZkiANIUM+2YLDwUzc80gmq3oP/oDH:HKseiM9ZkiAPhr/0O8/oj

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 (93) 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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\92eea22c70cf0fe4116b1021e91eb373.exe\""	92eea22c70cf0fe4116b1021e91eb373.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	92eea22c70cf0fe4116b1021e91eb373.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	92eea22c70cf0fe4116b1021e91eb373.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	92eea22c70cf0fe4116b1021e91eb373.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	92eea22c70cf0fe4116b1021e91eb373.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	92eea22c70cf0fe4116b1021e91eb373.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
14	discord.com
15	discord.com
18	discord.com
19	discord.com
24	discord.com
39	discord.com

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
5	api.ipify.org
6	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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	92eea22c70cf0fe4116b1021e91eb373.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5344	4644	WerFault.exe	83
2292	4644	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4644	92eea22c70cf0fe4116b1021e91eb373.exe
4644	92eea22c70cf0fe4116b1021e91eb373.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4644	92eea22c70cf0fe4116b1021e91eb373.exe
Token: SeIncreaseQuotaPrivilege	3568	WMIC.exe
Token: SeSecurityPrivilege	3568	WMIC.exe
Token: SeTakeOwnershipPrivilege	3568	WMIC.exe
Token: SeLoadDriverPrivilege	3568	WMIC.exe
Token: SeSystemProfilePrivilege	3568	WMIC.exe
Token: SeSystemtimePrivilege	3568	WMIC.exe
Token: SeProfSingleProcessPrivilege	3568	WMIC.exe
Token: SeIncBasePriorityPrivilege	3568	WMIC.exe
Token: SeCreatePagefilePrivilege	3568	WMIC.exe
Token: SeBackupPrivilege	3568	WMIC.exe
Token: SeRestorePrivilege	3568	WMIC.exe
Token: SeShutdownPrivilege	3568	WMIC.exe
Token: SeDebugPrivilege	3568	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3568	WMIC.exe
Token: SeRemoteShutdownPrivilege	3568	WMIC.exe
Token: SeUndockPrivilege	3568	WMIC.exe
Token: SeManageVolumePrivilege	3568	WMIC.exe
Token: 33	3568	WMIC.exe
Token: 34	3568	WMIC.exe
Token: 35	3568	WMIC.exe
Token: 36	3568	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3568	WMIC.exe
Token: SeSecurityPrivilege	3568	WMIC.exe
Token: SeTakeOwnershipPrivilege	3568	WMIC.exe
Token: SeLoadDriverPrivilege	3568	WMIC.exe
Token: SeSystemProfilePrivilege	3568	WMIC.exe
Token: SeSystemtimePrivilege	3568	WMIC.exe
Token: SeProfSingleProcessPrivilege	3568	WMIC.exe
Token: SeIncBasePriorityPrivilege	3568	WMIC.exe
Token: SeCreatePagefilePrivilege	3568	WMIC.exe
Token: SeBackupPrivilege	3568	WMIC.exe
Token: SeRestorePrivilege	3568	WMIC.exe
Token: SeShutdownPrivilege	3568	WMIC.exe
Token: SeDebugPrivilege	3568	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3568	WMIC.exe
Token: SeRemoteShutdownPrivilege	3568	WMIC.exe
Token: SeUndockPrivilege	3568	WMIC.exe
Token: SeManageVolumePrivilege	3568	WMIC.exe
Token: 33	3568	WMIC.exe
Token: 34	3568	WMIC.exe
Token: 35	3568	WMIC.exe
Token: 36	3568	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 2376	4644	92eea22c70cf0fe4116b1021e91eb373.exe	84
PID 4644 wrote to memory of 2376	4644	92eea22c70cf0fe4116b1021e91eb373.exe	84
PID 4644 wrote to memory of 2376	4644	92eea22c70cf0fe4116b1021e91eb373.exe	84
PID 2376 wrote to memory of 3568	2376	cmd.exe	86
PID 2376 wrote to memory of 3568	2376	cmd.exe	86
PID 2376 wrote to memory of 3568	2376	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\92eea22c70cf0fe4116b1021e91eb373.exe
"C:\Users\Admin\AppData\Local\Temp\92eea22c70cf0fe4116b1021e91eb373.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:4644
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2376
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 2200
  2⤵
  - Program crash
  PID:5344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 2200
  2⤵
  - Program crash
  PID:2292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4644 -ip 4644
1⤵
PID:2284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4644 -ip 4644
1⤵
PID:5392

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

Web Service

T1102

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/4644-0-0x0000000000CA0000-0x0000000000CB6000-memory.dmp

Filesize
88KB

Download
memory/4644-1-0x00000000751B0000-0x0000000075960000-memory.dmp

Filesize
7.7MB

Download
memory/4644-2-0x0000000005B80000-0x0000000006124000-memory.dmp

Filesize
5.6MB

Download
memory/4644-3-0x00000000056B0000-0x0000000005742000-memory.dmp

Filesize
584KB

Download
memory/4644-4-0x00000000059F0000-0x0000000005A00000-memory.dmp

Filesize
64KB

Download
memory/4644-75-0x00000000751B0000-0x0000000075960000-memory.dmp

Filesize
7.7MB

Download
memory/4644-81-0x00000000059F0000-0x0000000005A00000-memory.dmp

Filesize
64KB

Download
memory/4644-102-0x0000000006420000-0x000000000642A000-memory.dmp

Filesize
40KB

Download
memory/4644-103-0x00000000751B0000-0x0000000075960000-memory.dmp

Filesize
7.7MB

Download