nitro | fa354e28c5325fb189cae24b88354674476ce1ab764dc94c9fa6178dc7d2314a

Analysis

max time kernel
141s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-03-2024 15:38

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General

Target

befad918d88f92f7bf5532794dff5d38.exe
Size

61KB
MD5

befad918d88f92f7bf5532794dff5d38
SHA1

3f9e1fb8646b98df4e3992fde1dfcfe90f6c4592
SHA256

fa354e28c5325fb189cae24b88354674476ce1ab764dc94c9fa6178dc7d2314a
SHA512

8c9f73c0b1d770aff927ca70e09a83aecabff3704d11c73c18c4b3e50a154a2670d35800a98158188a72f3d56e7b918786b0d94fd71f0c5018e01a0e45c9a7df
SSDEEP

768:IKsMqCXfVcWfLM9ZkiANIUXqnYLDwUzc80gmq3oP/oD3:IKsejM9ZkiAPxr/0O8/ob

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 (92) 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-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\befad918d88f92f7bf5532794dff5d38.exe\""	befad918d88f92f7bf5532794dff5d38.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	befad918d88f92f7bf5532794dff5d38.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	befad918d88f92f7bf5532794dff5d38.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	befad918d88f92f7bf5532794dff5d38.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	befad918d88f92f7bf5532794dff5d38.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	befad918d88f92f7bf5532794dff5d38.exe

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

Web Service

T1102

flow	ioc
39	discord.com
72	discord.com
25	discord.com
26	discord.com
28	discord.com
36	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
18	api.ipify.org
19	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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	befad918d88f92f7bf5532794dff5d38.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1700	5084	WerFault.exe	87
1576	5084	WerFault.exe	87

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5084	befad918d88f92f7bf5532794dff5d38.exe
5084	befad918d88f92f7bf5532794dff5d38.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	5084	befad918d88f92f7bf5532794dff5d38.exe
Token: SeIncreaseQuotaPrivilege	840	WMIC.exe
Token: SeSecurityPrivilege	840	WMIC.exe
Token: SeTakeOwnershipPrivilege	840	WMIC.exe
Token: SeLoadDriverPrivilege	840	WMIC.exe
Token: SeSystemProfilePrivilege	840	WMIC.exe
Token: SeSystemtimePrivilege	840	WMIC.exe
Token: SeProfSingleProcessPrivilege	840	WMIC.exe
Token: SeIncBasePriorityPrivilege	840	WMIC.exe
Token: SeCreatePagefilePrivilege	840	WMIC.exe
Token: SeBackupPrivilege	840	WMIC.exe
Token: SeRestorePrivilege	840	WMIC.exe
Token: SeShutdownPrivilege	840	WMIC.exe
Token: SeDebugPrivilege	840	WMIC.exe
Token: SeSystemEnvironmentPrivilege	840	WMIC.exe
Token: SeRemoteShutdownPrivilege	840	WMIC.exe
Token: SeUndockPrivilege	840	WMIC.exe
Token: SeManageVolumePrivilege	840	WMIC.exe
Token: 33	840	WMIC.exe
Token: 34	840	WMIC.exe
Token: 35	840	WMIC.exe
Token: 36	840	WMIC.exe
Token: SeIncreaseQuotaPrivilege	840	WMIC.exe
Token: SeSecurityPrivilege	840	WMIC.exe
Token: SeTakeOwnershipPrivilege	840	WMIC.exe
Token: SeLoadDriverPrivilege	840	WMIC.exe
Token: SeSystemProfilePrivilege	840	WMIC.exe
Token: SeSystemtimePrivilege	840	WMIC.exe
Token: SeProfSingleProcessPrivilege	840	WMIC.exe
Token: SeIncBasePriorityPrivilege	840	WMIC.exe
Token: SeCreatePagefilePrivilege	840	WMIC.exe
Token: SeBackupPrivilege	840	WMIC.exe
Token: SeRestorePrivilege	840	WMIC.exe
Token: SeShutdownPrivilege	840	WMIC.exe
Token: SeDebugPrivilege	840	WMIC.exe
Token: SeSystemEnvironmentPrivilege	840	WMIC.exe
Token: SeRemoteShutdownPrivilege	840	WMIC.exe
Token: SeUndockPrivilege	840	WMIC.exe
Token: SeManageVolumePrivilege	840	WMIC.exe
Token: 33	840	WMIC.exe
Token: 34	840	WMIC.exe
Token: 35	840	WMIC.exe
Token: 36	840	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 3968	5084	befad918d88f92f7bf5532794dff5d38.exe	90
PID 5084 wrote to memory of 3968	5084	befad918d88f92f7bf5532794dff5d38.exe	90
PID 5084 wrote to memory of 3968	5084	befad918d88f92f7bf5532794dff5d38.exe	90
PID 3968 wrote to memory of 840	3968	cmd.exe	92
PID 3968 wrote to memory of 840	3968	cmd.exe	92
PID 3968 wrote to memory of 840	3968	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\befad918d88f92f7bf5532794dff5d38.exe
"C:\Users\Admin\AppData\Local\Temp\befad918d88f92f7bf5532794dff5d38.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:5084
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3968
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5084 -s 1708
  2⤵
  - Program crash
  PID:1700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5084 -s 1608
  2⤵
  - Program crash
  PID:1576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5084 -ip 5084
1⤵
PID:392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5084 -ip 5084
1⤵
PID:1964

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/5084-0-0x0000000000580000-0x0000000000596000-memory.dmp

Filesize
88KB

Download
memory/5084-1-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/5084-2-0x0000000005440000-0x00000000059E4000-memory.dmp

Filesize
5.6MB

Download
memory/5084-3-0x0000000004F80000-0x0000000005012000-memory.dmp

Filesize
584KB

Download
memory/5084-4-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/5084-70-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/5084-80-0x0000000004F10000-0x0000000004F20000-memory.dmp

Filesize
64KB

Download
memory/5084-101-0x0000000005CE0000-0x0000000005CEA000-memory.dmp

Filesize
40KB

Download
memory/5084-102-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download