nitro | 99842bf8db6403f3ff467e932aa1b9830523d9b53f15ea2ea71710b30c7884f8

Analysis

max time kernel
120s
max time network
130s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 01:46

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General

Target

0a8f7774e2ad53ad4add3deb49b4feac.exe
Size

60KB
MD5

0a8f7774e2ad53ad4add3deb49b4feac
SHA1

98577cb3dade5d8e8108ba4b3ce9cb862e9e2576
SHA256

99842bf8db6403f3ff467e932aa1b9830523d9b53f15ea2ea71710b30c7884f8
SHA512

4a243c021124d3399159d6435a7fe88d00968e91a4508987bf1ca0f050dfa93cca14f1eb53dda134ee4dd0e622242e8a73faccd4ed598b56d063401c387d8be6
SSDEEP

768:FOucKn7n1JwDNANIUMTvLDwUzc80gmq3oP/oDp:FO2wDNAPGr/0O8/o9

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 (79) 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-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\0a8f7774e2ad53ad4add3deb49b4feac.exe\""	0a8f7774e2ad53ad4add3deb49b4feac.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	0a8f7774e2ad53ad4add3deb49b4feac.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	0a8f7774e2ad53ad4add3deb49b4feac.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	0a8f7774e2ad53ad4add3deb49b4feac.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
2	api.ipify.org
3	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-1-5-21-1268429524-3929314613-1992311491-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	0a8f7774e2ad53ad4add3deb49b4feac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	0a8f7774e2ad53ad4add3deb49b4feac.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3048	0a8f7774e2ad53ad4add3deb49b4feac.exe
3048	0a8f7774e2ad53ad4add3deb49b4feac.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	3048	0a8f7774e2ad53ad4add3deb49b4feac.exe
Token: SeIncreaseQuotaPrivilege	2360	WMIC.exe
Token: SeSecurityPrivilege	2360	WMIC.exe
Token: SeTakeOwnershipPrivilege	2360	WMIC.exe
Token: SeLoadDriverPrivilege	2360	WMIC.exe
Token: SeSystemProfilePrivilege	2360	WMIC.exe
Token: SeSystemtimePrivilege	2360	WMIC.exe
Token: SeProfSingleProcessPrivilege	2360	WMIC.exe
Token: SeIncBasePriorityPrivilege	2360	WMIC.exe
Token: SeCreatePagefilePrivilege	2360	WMIC.exe
Token: SeBackupPrivilege	2360	WMIC.exe
Token: SeRestorePrivilege	2360	WMIC.exe
Token: SeShutdownPrivilege	2360	WMIC.exe
Token: SeDebugPrivilege	2360	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2360	WMIC.exe
Token: SeRemoteShutdownPrivilege	2360	WMIC.exe
Token: SeUndockPrivilege	2360	WMIC.exe
Token: SeManageVolumePrivilege	2360	WMIC.exe
Token: 33	2360	WMIC.exe
Token: 34	2360	WMIC.exe
Token: 35	2360	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2360	WMIC.exe
Token: SeSecurityPrivilege	2360	WMIC.exe
Token: SeTakeOwnershipPrivilege	2360	WMIC.exe
Token: SeLoadDriverPrivilege	2360	WMIC.exe
Token: SeSystemProfilePrivilege	2360	WMIC.exe
Token: SeSystemtimePrivilege	2360	WMIC.exe
Token: SeProfSingleProcessPrivilege	2360	WMIC.exe
Token: SeIncBasePriorityPrivilege	2360	WMIC.exe
Token: SeCreatePagefilePrivilege	2360	WMIC.exe
Token: SeBackupPrivilege	2360	WMIC.exe
Token: SeRestorePrivilege	2360	WMIC.exe
Token: SeShutdownPrivilege	2360	WMIC.exe
Token: SeDebugPrivilege	2360	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2360	WMIC.exe
Token: SeRemoteShutdownPrivilege	2360	WMIC.exe
Token: SeUndockPrivilege	2360	WMIC.exe
Token: SeManageVolumePrivilege	2360	WMIC.exe
Token: 33	2360	WMIC.exe
Token: 34	2360	WMIC.exe
Token: 35	2360	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2268	3048	0a8f7774e2ad53ad4add3deb49b4feac.exe	28
PID 3048 wrote to memory of 2268	3048	0a8f7774e2ad53ad4add3deb49b4feac.exe	28
PID 3048 wrote to memory of 2268	3048	0a8f7774e2ad53ad4add3deb49b4feac.exe	28
PID 3048 wrote to memory of 2268	3048	0a8f7774e2ad53ad4add3deb49b4feac.exe	28
PID 2268 wrote to memory of 2360	2268	cmd.exe	30
PID 2268 wrote to memory of 2360	2268	cmd.exe	30
PID 2268 wrote to memory of 2360	2268	cmd.exe	30
PID 2268 wrote to memory of 2360	2268	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\0a8f7774e2ad53ad4add3deb49b4feac.exe
"C:\Users\Admin\AppData\Local\Temp\0a8f7774e2ad53ad4add3deb49b4feac.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:3048
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2268
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2360

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/3048-0-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download
memory/3048-1-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/3048-2-0x0000000001FE0000-0x0000000002020000-memory.dmp

Filesize
256KB

Download
memory/3048-40-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/3048-47-0x0000000001FE0000-0x0000000002020000-memory.dmp

Filesize
256KB

Download
memory/3048-87-0x0000000001FE0000-0x0000000002020000-memory.dmp

Filesize
256KB

Download
memory/3048-88-0x0000000001FE0000-0x0000000002020000-memory.dmp

Filesize
256KB

Download