nitro | 329f8b9afd9c32b4afd6602067d7ec87a64cd83cb5945df6d4ed0a7c80e16c63

Analysis

max time kernel
93s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 01:43

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General

Target

95e9c3bbefa543ca925e7699636bb0c1.exe
Size

60KB
MD5

95e9c3bbefa543ca925e7699636bb0c1
SHA1

167b2604d081b98e85b51bd359c6b0bd169738e5
SHA256

329f8b9afd9c32b4afd6602067d7ec87a64cd83cb5945df6d4ed0a7c80e16c63
SHA512

c211d5d7e3dfc7dbdeaa734bbbfb36bcffaca81a1394f3b26a1c9e40da7a05392d857926ad60589d548ff7ad8c8cd680bd6481faf1889f4cd529cba7a9d3a472
SSDEEP

768:gOucKn7n1J2hDMANIUpZvLDwUzc80gmq3oP/oDoDH:gO2oDMAPbr/0O8/osDH

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 (83) 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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\95e9c3bbefa543ca925e7699636bb0c1.exe\""	95e9c3bbefa543ca925e7699636bb0c1.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	95e9c3bbefa543ca925e7699636bb0c1.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	95e9c3bbefa543ca925e7699636bb0c1.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	95e9c3bbefa543ca925e7699636bb0c1.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	95e9c3bbefa543ca925e7699636bb0c1.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	95e9c3bbefa543ca925e7699636bb0c1.exe

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

Web Service

T1102

flow	ioc
22	discord.com
24	discord.com
26	discord.com
27	discord.com
55	discord.com
20	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
11	api.ipify.org
13	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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	95e9c3bbefa543ca925e7699636bb0c1.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1108	1632	WerFault.exe	83
2044	1632	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1632	95e9c3bbefa543ca925e7699636bb0c1.exe
1632	95e9c3bbefa543ca925e7699636bb0c1.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	95e9c3bbefa543ca925e7699636bb0c1.exe
Token: SeIncreaseQuotaPrivilege	3624	WMIC.exe
Token: SeSecurityPrivilege	3624	WMIC.exe
Token: SeTakeOwnershipPrivilege	3624	WMIC.exe
Token: SeLoadDriverPrivilege	3624	WMIC.exe
Token: SeSystemProfilePrivilege	3624	WMIC.exe
Token: SeSystemtimePrivilege	3624	WMIC.exe
Token: SeProfSingleProcessPrivilege	3624	WMIC.exe
Token: SeIncBasePriorityPrivilege	3624	WMIC.exe
Token: SeCreatePagefilePrivilege	3624	WMIC.exe
Token: SeBackupPrivilege	3624	WMIC.exe
Token: SeRestorePrivilege	3624	WMIC.exe
Token: SeShutdownPrivilege	3624	WMIC.exe
Token: SeDebugPrivilege	3624	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3624	WMIC.exe
Token: SeRemoteShutdownPrivilege	3624	WMIC.exe
Token: SeUndockPrivilege	3624	WMIC.exe
Token: SeManageVolumePrivilege	3624	WMIC.exe
Token: 33	3624	WMIC.exe
Token: 34	3624	WMIC.exe
Token: 35	3624	WMIC.exe
Token: 36	3624	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3624	WMIC.exe
Token: SeSecurityPrivilege	3624	WMIC.exe
Token: SeTakeOwnershipPrivilege	3624	WMIC.exe
Token: SeLoadDriverPrivilege	3624	WMIC.exe
Token: SeSystemProfilePrivilege	3624	WMIC.exe
Token: SeSystemtimePrivilege	3624	WMIC.exe
Token: SeProfSingleProcessPrivilege	3624	WMIC.exe
Token: SeIncBasePriorityPrivilege	3624	WMIC.exe
Token: SeCreatePagefilePrivilege	3624	WMIC.exe
Token: SeBackupPrivilege	3624	WMIC.exe
Token: SeRestorePrivilege	3624	WMIC.exe
Token: SeShutdownPrivilege	3624	WMIC.exe
Token: SeDebugPrivilege	3624	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3624	WMIC.exe
Token: SeRemoteShutdownPrivilege	3624	WMIC.exe
Token: SeUndockPrivilege	3624	WMIC.exe
Token: SeManageVolumePrivilege	3624	WMIC.exe
Token: 33	3624	WMIC.exe
Token: 34	3624	WMIC.exe
Token: 35	3624	WMIC.exe
Token: 36	3624	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 5000	1632	95e9c3bbefa543ca925e7699636bb0c1.exe	84
PID 1632 wrote to memory of 5000	1632	95e9c3bbefa543ca925e7699636bb0c1.exe	84
PID 1632 wrote to memory of 5000	1632	95e9c3bbefa543ca925e7699636bb0c1.exe	84
PID 5000 wrote to memory of 3624	5000	cmd.exe	86
PID 5000 wrote to memory of 3624	5000	cmd.exe	86
PID 5000 wrote to memory of 3624	5000	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\95e9c3bbefa543ca925e7699636bb0c1.exe
"C:\Users\Admin\AppData\Local\Temp\95e9c3bbefa543ca925e7699636bb0c1.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:1632
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5000
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 2200
  2⤵
  - Program crash
  PID:1108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 2200
  2⤵
  - Program crash
  PID:2044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1632 -ip 1632
1⤵
PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1632 -ip 1632
1⤵
PID:1548

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/1632-0-0x0000000000440000-0x0000000000456000-memory.dmp

Filesize
88KB

Download
memory/1632-1-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/1632-2-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/1632-3-0x0000000004EA0000-0x0000000004F32000-memory.dmp

Filesize
584KB

Download
memory/1632-4-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/1632-42-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/1632-49-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/1632-92-0x0000000005BD0000-0x0000000005BDA000-memory.dmp

Filesize
40KB

Download
memory/1632-93-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download