nitro | 3c57851605d84398dfb0df0050ed4542a6a64a9c6008525dcaea4f35d0b5dd90

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-01-2024 07:19

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

55d3a93ab948a1bad005a276fd64ca77.exe
Size

60KB
MD5

55d3a93ab948a1bad005a276fd64ca77
SHA1

03e59428389de848cd34da7482363faacd9a771d
SHA256

3c57851605d84398dfb0df0050ed4542a6a64a9c6008525dcaea4f35d0b5dd90
SHA512

59839df9722eff95d34ca44ad8c759763b8f2c255e040ef7c5cb79e6cb8e28ad5ff9a939e951ed403f5a17ba42933a96c65892388bbe3c968476afbb64521d50
SSDEEP

768:GOucKn7n1JjDNANIUxqvLDwUzc80gmq3oP/oDL:GO2jDNAPOr/0O8/oX

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 (87) 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-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\55d3a93ab948a1bad005a276fd64ca77.exe\""	55d3a93ab948a1bad005a276fd64ca77.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	55d3a93ab948a1bad005a276fd64ca77.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	55d3a93ab948a1bad005a276fd64ca77.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	55d3a93ab948a1bad005a276fd64ca77.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	55d3a93ab948a1bad005a276fd64ca77.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	55d3a93ab948a1bad005a276fd64ca77.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
14	api.ipify.org
15	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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	55d3a93ab948a1bad005a276fd64ca77.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1600	368	WerFault.exe	17
2488	368	WerFault.exe	17

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
368	55d3a93ab948a1bad005a276fd64ca77.exe
368	55d3a93ab948a1bad005a276fd64ca77.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	368	55d3a93ab948a1bad005a276fd64ca77.exe
Token: SeIncreaseQuotaPrivilege	3900	WMIC.exe
Token: SeSecurityPrivilege	3900	WMIC.exe
Token: SeTakeOwnershipPrivilege	3900	WMIC.exe
Token: SeLoadDriverPrivilege	3900	WMIC.exe
Token: SeSystemProfilePrivilege	3900	WMIC.exe
Token: SeSystemtimePrivilege	3900	WMIC.exe
Token: SeProfSingleProcessPrivilege	3900	WMIC.exe
Token: SeIncBasePriorityPrivilege	3900	WMIC.exe
Token: SeCreatePagefilePrivilege	3900	WMIC.exe
Token: SeBackupPrivilege	3900	WMIC.exe
Token: SeRestorePrivilege	3900	WMIC.exe
Token: SeShutdownPrivilege	3900	WMIC.exe
Token: SeDebugPrivilege	3900	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3900	WMIC.exe
Token: SeRemoteShutdownPrivilege	3900	WMIC.exe
Token: SeUndockPrivilege	3900	WMIC.exe
Token: SeManageVolumePrivilege	3900	WMIC.exe
Token: 33	3900	WMIC.exe
Token: 34	3900	WMIC.exe
Token: 35	3900	WMIC.exe
Token: 36	3900	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3900	WMIC.exe
Token: SeSecurityPrivilege	3900	WMIC.exe
Token: SeTakeOwnershipPrivilege	3900	WMIC.exe
Token: SeLoadDriverPrivilege	3900	WMIC.exe
Token: SeSystemProfilePrivilege	3900	WMIC.exe
Token: SeSystemtimePrivilege	3900	WMIC.exe
Token: SeProfSingleProcessPrivilege	3900	WMIC.exe
Token: SeIncBasePriorityPrivilege	3900	WMIC.exe
Token: SeCreatePagefilePrivilege	3900	WMIC.exe
Token: SeBackupPrivilege	3900	WMIC.exe
Token: SeRestorePrivilege	3900	WMIC.exe
Token: SeShutdownPrivilege	3900	WMIC.exe
Token: SeDebugPrivilege	3900	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3900	WMIC.exe
Token: SeRemoteShutdownPrivilege	3900	WMIC.exe
Token: SeUndockPrivilege	3900	WMIC.exe
Token: SeManageVolumePrivilege	3900	WMIC.exe
Token: 33	3900	WMIC.exe
Token: 34	3900	WMIC.exe
Token: 35	3900	WMIC.exe
Token: 36	3900	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 1972	368	55d3a93ab948a1bad005a276fd64ca77.exe	43
PID 368 wrote to memory of 1972	368	55d3a93ab948a1bad005a276fd64ca77.exe	43
PID 368 wrote to memory of 1972	368	55d3a93ab948a1bad005a276fd64ca77.exe	43
PID 1972 wrote to memory of 3900	1972	cmd.exe	46
PID 1972 wrote to memory of 3900	1972	cmd.exe	46
PID 1972 wrote to memory of 3900	1972	cmd.exe	46

C:\Users\Admin\AppData\Local\Temp\55d3a93ab948a1bad005a276fd64ca77.exe
"C:\Users\Admin\AppData\Local\Temp\55d3a93ab948a1bad005a276fd64ca77.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:368
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 2264
  2⤵
  - Program crash
  PID:1600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 2264
  2⤵
  - Program crash
  PID:2488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 368 -ip 368
1⤵
PID:4632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 368 -ip 368
1⤵
PID:1012

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

Loading Replay Monitor...

Downloads

memory/368-1-0x00000000009B0000-0x00000000009C6000-memory.dmp

Filesize
88KB

Download
memory/368-0-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/368-2-0x00000000058D0000-0x0000000005E74000-memory.dmp

Filesize
5.6MB

Download
memory/368-3-0x00000000053C0000-0x0000000005452000-memory.dmp

Filesize
584KB

Download
memory/368-4-0x0000000005370000-0x0000000005380000-memory.dmp

Filesize
64KB

Download
memory/368-20-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/368-25-0x0000000005370000-0x0000000005380000-memory.dmp

Filesize
64KB

Download
memory/368-96-0x0000000001160000-0x000000000116A000-memory.dmp

Filesize
40KB

Download
memory/368-97-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download