nitro | 7d7f39ea140c1d58a017ffdd969c8a6f6201bfb578b4090b1e4588be84a7e29a

Analysis

max time kernel
139s
max time network
146s
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 08:08

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General

Target

96afa5e15f4cdbb0e1f51097e6acf4ea.exe
Size

123KB
MD5

96afa5e15f4cdbb0e1f51097e6acf4ea
SHA1

f38ea1b2f52f76a691a320a6a812a414cc0d2ecf
SHA256

7d7f39ea140c1d58a017ffdd969c8a6f6201bfb578b4090b1e4588be84a7e29a
SHA512

8079fcb8018f31d08b9e3f01ca35ce7f1526632e9bdd3c6ff83df279f24ddba83c929a033bd0450cd196356d280be7948386957db6d7e8dceb242c12cd145efc
SSDEEP

1536:pCIx2GoWviV8U5RG+B9cz5PdJQnAo045kna1h/9tiIx9XJKS2O8/ovxTR4r/3O:eZRJ2dg0Ut335KS38/ovJR46

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 (104) 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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\96afa5e15f4cdbb0e1f51097e6acf4ea.exe\""	96afa5e15f4cdbb0e1f51097e6acf4ea.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	96afa5e15f4cdbb0e1f51097e6acf4ea.exe

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

Web Service

T1102

flow	ioc
21	discord.com
22	discord.com
64	discord.com
17	discord.com
18	discord.com
19	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
9	api.ipify.org
11	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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	96afa5e15f4cdbb0e1f51097e6acf4ea.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2728	180	WerFault.exe	83
4728	180	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
180	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
180	96afa5e15f4cdbb0e1f51097e6acf4ea.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	180	96afa5e15f4cdbb0e1f51097e6acf4ea.exe
Token: SeIncreaseQuotaPrivilege	4308	WMIC.exe
Token: SeSecurityPrivilege	4308	WMIC.exe
Token: SeTakeOwnershipPrivilege	4308	WMIC.exe
Token: SeLoadDriverPrivilege	4308	WMIC.exe
Token: SeSystemProfilePrivilege	4308	WMIC.exe
Token: SeSystemtimePrivilege	4308	WMIC.exe
Token: SeProfSingleProcessPrivilege	4308	WMIC.exe
Token: SeIncBasePriorityPrivilege	4308	WMIC.exe
Token: SeCreatePagefilePrivilege	4308	WMIC.exe
Token: SeBackupPrivilege	4308	WMIC.exe
Token: SeRestorePrivilege	4308	WMIC.exe
Token: SeShutdownPrivilege	4308	WMIC.exe
Token: SeDebugPrivilege	4308	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4308	WMIC.exe
Token: SeRemoteShutdownPrivilege	4308	WMIC.exe
Token: SeUndockPrivilege	4308	WMIC.exe
Token: SeManageVolumePrivilege	4308	WMIC.exe
Token: 33	4308	WMIC.exe
Token: 34	4308	WMIC.exe
Token: 35	4308	WMIC.exe
Token: 36	4308	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4308	WMIC.exe
Token: SeSecurityPrivilege	4308	WMIC.exe
Token: SeTakeOwnershipPrivilege	4308	WMIC.exe
Token: SeLoadDriverPrivilege	4308	WMIC.exe
Token: SeSystemProfilePrivilege	4308	WMIC.exe
Token: SeSystemtimePrivilege	4308	WMIC.exe
Token: SeProfSingleProcessPrivilege	4308	WMIC.exe
Token: SeIncBasePriorityPrivilege	4308	WMIC.exe
Token: SeCreatePagefilePrivilege	4308	WMIC.exe
Token: SeBackupPrivilege	4308	WMIC.exe
Token: SeRestorePrivilege	4308	WMIC.exe
Token: SeShutdownPrivilege	4308	WMIC.exe
Token: SeDebugPrivilege	4308	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4308	WMIC.exe
Token: SeRemoteShutdownPrivilege	4308	WMIC.exe
Token: SeUndockPrivilege	4308	WMIC.exe
Token: SeManageVolumePrivilege	4308	WMIC.exe
Token: 33	4308	WMIC.exe
Token: 34	4308	WMIC.exe
Token: 35	4308	WMIC.exe
Token: 36	4308	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 180 wrote to memory of 4648	180	96afa5e15f4cdbb0e1f51097e6acf4ea.exe	84
PID 180 wrote to memory of 4648	180	96afa5e15f4cdbb0e1f51097e6acf4ea.exe	84
PID 180 wrote to memory of 4648	180	96afa5e15f4cdbb0e1f51097e6acf4ea.exe	84
PID 4648 wrote to memory of 4308	4648	cmd.exe	86
PID 4648 wrote to memory of 4308	4648	cmd.exe	86
PID 4648 wrote to memory of 4308	4648	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\96afa5e15f4cdbb0e1f51097e6acf4ea.exe
"C:\Users\Admin\AppData\Local\Temp\96afa5e15f4cdbb0e1f51097e6acf4ea.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:180
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4648
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 180 -s 2312
  2⤵
  - Program crash
  PID:2728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 180 -s 2312
  2⤵
  - Program crash
  PID:4728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 180 -ip 180
1⤵
PID:2608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 180 -ip 180
1⤵
PID:4588

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/180-0-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download
memory/180-1-0x0000000000730000-0x0000000000756000-memory.dmp

Filesize
152KB

Download
memory/180-2-0x0000000005730000-0x0000000005CD4000-memory.dmp

Filesize
5.6MB

Download
memory/180-3-0x0000000005180000-0x0000000005212000-memory.dmp

Filesize
584KB

Download
memory/180-4-0x0000000005150000-0x0000000005160000-memory.dmp

Filesize
64KB

Download
memory/180-19-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download
memory/180-36-0x0000000005150000-0x0000000005160000-memory.dmp

Filesize
64KB

Download
memory/180-113-0x0000000000F40000-0x0000000000F4A000-memory.dmp

Filesize
40KB

Download
memory/180-114-0x00000000748F0000-0x00000000750A0000-memory.dmp

Filesize
7.7MB

Download