nitro | fa354e28c5325fb189cae24b88354674476ce1ab764dc94c9fa6178dc7d2314a

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-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 (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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\befad918d88f92f7bf5532794dff5d38.exe\""	befad918d88f92f7bf5532794dff5d38.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	befad918d88f92f7bf5532794dff5d38.exe
File opened for modification	C:\Users\Admin\Desktop\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
9	discord.com
4	discord.com
5	discord.com
6	discord.com
7	discord.com
8	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
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-1-5-21-2248906074-2862704502-246302768-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	befad918d88f92f7bf5532794dff5d38.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	befad918d88f92f7bf5532794dff5d38.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2268	befad918d88f92f7bf5532794dff5d38.exe
2268	befad918d88f92f7bf5532794dff5d38.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2268	befad918d88f92f7bf5532794dff5d38.exe
Token: SeIncreaseQuotaPrivilege	2892	WMIC.exe
Token: SeSecurityPrivilege	2892	WMIC.exe
Token: SeTakeOwnershipPrivilege	2892	WMIC.exe
Token: SeLoadDriverPrivilege	2892	WMIC.exe
Token: SeSystemProfilePrivilege	2892	WMIC.exe
Token: SeSystemtimePrivilege	2892	WMIC.exe
Token: SeProfSingleProcessPrivilege	2892	WMIC.exe
Token: SeIncBasePriorityPrivilege	2892	WMIC.exe
Token: SeCreatePagefilePrivilege	2892	WMIC.exe
Token: SeBackupPrivilege	2892	WMIC.exe
Token: SeRestorePrivilege	2892	WMIC.exe
Token: SeShutdownPrivilege	2892	WMIC.exe
Token: SeDebugPrivilege	2892	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2892	WMIC.exe
Token: SeRemoteShutdownPrivilege	2892	WMIC.exe
Token: SeUndockPrivilege	2892	WMIC.exe
Token: SeManageVolumePrivilege	2892	WMIC.exe
Token: 33	2892	WMIC.exe
Token: 34	2892	WMIC.exe
Token: 35	2892	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2892	WMIC.exe
Token: SeSecurityPrivilege	2892	WMIC.exe
Token: SeTakeOwnershipPrivilege	2892	WMIC.exe
Token: SeLoadDriverPrivilege	2892	WMIC.exe
Token: SeSystemProfilePrivilege	2892	WMIC.exe
Token: SeSystemtimePrivilege	2892	WMIC.exe
Token: SeProfSingleProcessPrivilege	2892	WMIC.exe
Token: SeIncBasePriorityPrivilege	2892	WMIC.exe
Token: SeCreatePagefilePrivilege	2892	WMIC.exe
Token: SeBackupPrivilege	2892	WMIC.exe
Token: SeRestorePrivilege	2892	WMIC.exe
Token: SeShutdownPrivilege	2892	WMIC.exe
Token: SeDebugPrivilege	2892	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2892	WMIC.exe
Token: SeRemoteShutdownPrivilege	2892	WMIC.exe
Token: SeUndockPrivilege	2892	WMIC.exe
Token: SeManageVolumePrivilege	2892	WMIC.exe
Token: 33	2892	WMIC.exe
Token: 34	2892	WMIC.exe
Token: 35	2892	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 1884	2268	befad918d88f92f7bf5532794dff5d38.exe	28
PID 2268 wrote to memory of 1884	2268	befad918d88f92f7bf5532794dff5d38.exe	28
PID 2268 wrote to memory of 1884	2268	befad918d88f92f7bf5532794dff5d38.exe	28
PID 2268 wrote to memory of 1884	2268	befad918d88f92f7bf5532794dff5d38.exe	28
PID 1884 wrote to memory of 2892	1884	cmd.exe	30
PID 1884 wrote to memory of 2892	1884	cmd.exe	30
PID 1884 wrote to memory of 2892	1884	cmd.exe	30
PID 1884 wrote to memory of 2892	1884	cmd.exe	30

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:2268
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1884
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2892

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/2268-0-0x0000000000C00000-0x0000000000C16000-memory.dmp

Filesize
88KB

Download
memory/2268-1-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2268-2-0x0000000004B80000-0x0000000004BC0000-memory.dmp

Filesize
256KB

Download
memory/2268-68-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2268-80-0x0000000004B80000-0x0000000004BC0000-memory.dmp

Filesize
256KB

Download
memory/2268-101-0x0000000004B80000-0x0000000004BC0000-memory.dmp

Filesize
256KB

Download
memory/2268-102-0x0000000004B80000-0x0000000004BC0000-memory.dmp

Filesize
256KB

Download