nitro | fb92c528c1207a2421ec817cbf9793a3859637d7dc235a3998e07695860e3ce1

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
19-01-2024 16:55

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General

Target

682723a522c86f64b397afcdd65c21a1.exe
Size

61KB
MD5

682723a522c86f64b397afcdd65c21a1
SHA1

80999ff4ac0b068eb5028b50601b7ec9fe77a827
SHA256

fb92c528c1207a2421ec817cbf9793a3859637d7dc235a3998e07695860e3ce1
SHA512

703aafcece75f310b42c52aa42ddfbf3a680b6e2636c08f5ca1895abc722fe7fce99484b6257bbe70d5253f6a054c74c8b2fb6abcb431702e901efd51e7355c3
SSDEEP

768:VHKsMqCXfVcWlQM9ZkiANIULAYLDwUzc80gmq3oP/oDw:hKseSM9ZkiAP1r/0O8/os

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 (71) 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-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\682723a522c86f64b397afcdd65c21a1.exe\""	682723a522c86f64b397afcdd65c21a1.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	682723a522c86f64b397afcdd65c21a1.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	682723a522c86f64b397afcdd65c21a1.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	682723a522c86f64b397afcdd65c21a1.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-1-5-21-452311807-3713411997-1028535425-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	682723a522c86f64b397afcdd65c21a1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	682723a522c86f64b397afcdd65c21a1.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2380	682723a522c86f64b397afcdd65c21a1.exe
2380	682723a522c86f64b397afcdd65c21a1.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	682723a522c86f64b397afcdd65c21a1.exe
Token: SeIncreaseQuotaPrivilege	2716	WMIC.exe
Token: SeSecurityPrivilege	2716	WMIC.exe
Token: SeTakeOwnershipPrivilege	2716	WMIC.exe
Token: SeLoadDriverPrivilege	2716	WMIC.exe
Token: SeSystemProfilePrivilege	2716	WMIC.exe
Token: SeSystemtimePrivilege	2716	WMIC.exe
Token: SeProfSingleProcessPrivilege	2716	WMIC.exe
Token: SeIncBasePriorityPrivilege	2716	WMIC.exe
Token: SeCreatePagefilePrivilege	2716	WMIC.exe
Token: SeBackupPrivilege	2716	WMIC.exe
Token: SeRestorePrivilege	2716	WMIC.exe
Token: SeShutdownPrivilege	2716	WMIC.exe
Token: SeDebugPrivilege	2716	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2716	WMIC.exe
Token: SeRemoteShutdownPrivilege	2716	WMIC.exe
Token: SeUndockPrivilege	2716	WMIC.exe
Token: SeManageVolumePrivilege	2716	WMIC.exe
Token: 33	2716	WMIC.exe
Token: 34	2716	WMIC.exe
Token: 35	2716	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2716	WMIC.exe
Token: SeSecurityPrivilege	2716	WMIC.exe
Token: SeTakeOwnershipPrivilege	2716	WMIC.exe
Token: SeLoadDriverPrivilege	2716	WMIC.exe
Token: SeSystemProfilePrivilege	2716	WMIC.exe
Token: SeSystemtimePrivilege	2716	WMIC.exe
Token: SeProfSingleProcessPrivilege	2716	WMIC.exe
Token: SeIncBasePriorityPrivilege	2716	WMIC.exe
Token: SeCreatePagefilePrivilege	2716	WMIC.exe
Token: SeBackupPrivilege	2716	WMIC.exe
Token: SeRestorePrivilege	2716	WMIC.exe
Token: SeShutdownPrivilege	2716	WMIC.exe
Token: SeDebugPrivilege	2716	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2716	WMIC.exe
Token: SeRemoteShutdownPrivilege	2716	WMIC.exe
Token: SeUndockPrivilege	2716	WMIC.exe
Token: SeManageVolumePrivilege	2716	WMIC.exe
Token: 33	2716	WMIC.exe
Token: 34	2716	WMIC.exe
Token: 35	2716	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2352	2380	682723a522c86f64b397afcdd65c21a1.exe	28
PID 2380 wrote to memory of 2352	2380	682723a522c86f64b397afcdd65c21a1.exe	28
PID 2380 wrote to memory of 2352	2380	682723a522c86f64b397afcdd65c21a1.exe	28
PID 2380 wrote to memory of 2352	2380	682723a522c86f64b397afcdd65c21a1.exe	28
PID 2352 wrote to memory of 2716	2352	cmd.exe	30
PID 2352 wrote to memory of 2716	2352	cmd.exe	30
PID 2352 wrote to memory of 2716	2352	cmd.exe	30
PID 2352 wrote to memory of 2716	2352	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\682723a522c86f64b397afcdd65c21a1.exe
"C:\Users\Admin\AppData\Local\Temp\682723a522c86f64b397afcdd65c21a1.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:2380
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2716

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/2380-0-0x0000000001070000-0x0000000001086000-memory.dmp

Filesize
88KB

Download
memory/2380-1-0x00000000747E0000-0x0000000074ECE000-memory.dmp

Filesize
6.9MB

Download
memory/2380-2-0x0000000000F90000-0x0000000000FD0000-memory.dmp

Filesize
256KB

Download
memory/2380-33-0x00000000747E0000-0x0000000074ECE000-memory.dmp

Filesize
6.9MB

Download
memory/2380-39-0x0000000000F90000-0x0000000000FD0000-memory.dmp

Filesize
256KB

Download
memory/2380-79-0x0000000000F90000-0x0000000000FD0000-memory.dmp

Filesize
256KB

Download
memory/2380-80-0x0000000000F90000-0x0000000000FD0000-memory.dmp

Filesize
256KB

Download