nitro | 9e74dd5256ef30c2f3a8bef17e8af61869ddb9dc911754d619575a3e539c99f1

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-01-2024 00:44

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General

Target

64098b0feaebbe2746fe5e1b0a395e77.exe
Size

61KB
MD5

64098b0feaebbe2746fe5e1b0a395e77
SHA1

dd12d8776f8a2659490e85378562d23b093f14fd
SHA256

9e74dd5256ef30c2f3a8bef17e8af61869ddb9dc911754d619575a3e539c99f1
SHA512

a69cd7eb48c25b230940b6158bc4c1cf7b1d4621170581e470b02b2c171596bb4feb4f9b744212f194d56f2b3e42e863cc949388f3ddb6ace6ad0bdc15b266c8
SSDEEP

768:JKsMqCXfVcWp3M9ZkiANIUZd9YLDwUzc80gmq3oP/oDs:JKse1M9ZkiAPZEr/0O8/og

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 (94) 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-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\64098b0feaebbe2746fe5e1b0a395e77.exe\""	64098b0feaebbe2746fe5e1b0a395e77.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	64098b0feaebbe2746fe5e1b0a395e77.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	64098b0feaebbe2746fe5e1b0a395e77.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	64098b0feaebbe2746fe5e1b0a395e77.exe

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
4	api.ipify.org
5	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-1-5-21-3308111660-3636268597-2291490419-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	64098b0feaebbe2746fe5e1b0a395e77.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	64098b0feaebbe2746fe5e1b0a395e77.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1976	64098b0feaebbe2746fe5e1b0a395e77.exe
1976	64098b0feaebbe2746fe5e1b0a395e77.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1976	64098b0feaebbe2746fe5e1b0a395e77.exe
Token: SeIncreaseQuotaPrivilege	2840	WMIC.exe
Token: SeSecurityPrivilege	2840	WMIC.exe
Token: SeTakeOwnershipPrivilege	2840	WMIC.exe
Token: SeLoadDriverPrivilege	2840	WMIC.exe
Token: SeSystemProfilePrivilege	2840	WMIC.exe
Token: SeSystemtimePrivilege	2840	WMIC.exe
Token: SeProfSingleProcessPrivilege	2840	WMIC.exe
Token: SeIncBasePriorityPrivilege	2840	WMIC.exe
Token: SeCreatePagefilePrivilege	2840	WMIC.exe
Token: SeBackupPrivilege	2840	WMIC.exe
Token: SeRestorePrivilege	2840	WMIC.exe
Token: SeShutdownPrivilege	2840	WMIC.exe
Token: SeDebugPrivilege	2840	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2840	WMIC.exe
Token: SeRemoteShutdownPrivilege	2840	WMIC.exe
Token: SeUndockPrivilege	2840	WMIC.exe
Token: SeManageVolumePrivilege	2840	WMIC.exe
Token: 33	2840	WMIC.exe
Token: 34	2840	WMIC.exe
Token: 35	2840	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2840	WMIC.exe
Token: SeSecurityPrivilege	2840	WMIC.exe
Token: SeTakeOwnershipPrivilege	2840	WMIC.exe
Token: SeLoadDriverPrivilege	2840	WMIC.exe
Token: SeSystemProfilePrivilege	2840	WMIC.exe
Token: SeSystemtimePrivilege	2840	WMIC.exe
Token: SeProfSingleProcessPrivilege	2840	WMIC.exe
Token: SeIncBasePriorityPrivilege	2840	WMIC.exe
Token: SeCreatePagefilePrivilege	2840	WMIC.exe
Token: SeBackupPrivilege	2840	WMIC.exe
Token: SeRestorePrivilege	2840	WMIC.exe
Token: SeShutdownPrivilege	2840	WMIC.exe
Token: SeDebugPrivilege	2840	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2840	WMIC.exe
Token: SeRemoteShutdownPrivilege	2840	WMIC.exe
Token: SeUndockPrivilege	2840	WMIC.exe
Token: SeManageVolumePrivilege	2840	WMIC.exe
Token: 33	2840	WMIC.exe
Token: 34	2840	WMIC.exe
Token: 35	2840	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2312	1976	64098b0feaebbe2746fe5e1b0a395e77.exe	28
PID 1976 wrote to memory of 2312	1976	64098b0feaebbe2746fe5e1b0a395e77.exe	28
PID 1976 wrote to memory of 2312	1976	64098b0feaebbe2746fe5e1b0a395e77.exe	28
PID 1976 wrote to memory of 2312	1976	64098b0feaebbe2746fe5e1b0a395e77.exe	28
PID 2312 wrote to memory of 2840	2312	cmd.exe	30
PID 2312 wrote to memory of 2840	2312	cmd.exe	30
PID 2312 wrote to memory of 2840	2312	cmd.exe	30
PID 2312 wrote to memory of 2840	2312	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\64098b0feaebbe2746fe5e1b0a395e77.exe
"C:\Users\Admin\AppData\Local\Temp\64098b0feaebbe2746fe5e1b0a395e77.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:1976
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2312
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2840

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

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/1976-0-0x0000000001320000-0x0000000001336000-memory.dmp

Filesize
88KB

Download
memory/1976-1-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/1976-2-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download
memory/1976-38-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/1976-43-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download
memory/1976-102-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download
memory/1976-103-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download