nitro | faaac111b93bcfdc0024a28ee3d07a4e1a464d0211cac0eb387dc8542be69048

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
27-11-2023 01:01

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General

Target

0aa959049ed181008cd30a818ca4abc1.exe
Size

690KB
MD5

0aa959049ed181008cd30a818ca4abc1
SHA1

9dee42230d2b31eebe14e68c103c7423fcb5de92
SHA256

faaac111b93bcfdc0024a28ee3d07a4e1a464d0211cac0eb387dc8542be69048
SHA512

90315cdabbfd0826d39cc4ea166cd037a371e72e9068926f8da0c00a9a59d00114b0422c2ecc59527e08e426a7a9d96c2b1a94592995707c58453a39e45fac91
SSDEEP

12288:08+ACgkCHHdmg0ByvR4mWWaqMpWTYkmIWXoKOvp5y8HN7CzsXgxx9/06UqU4q:JkamxmWeeWFDuorh57HN7Czswxj/tVO

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 (84) 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-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\0aa959049ed181008cd30a818ca4abc1.exe\""	0aa959049ed181008cd30a818ca4abc1.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	0aa959049ed181008cd30a818ca4abc1.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	0aa959049ed181008cd30a818ca4abc1.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	0aa959049ed181008cd30a818ca4abc1.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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-1-5-21-2084844033-2744876406-2053742436-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	0aa959049ed181008cd30a818ca4abc1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	0aa959049ed181008cd30a818ca4abc1.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2348	0aa959049ed181008cd30a818ca4abc1.exe
2348	0aa959049ed181008cd30a818ca4abc1.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	0aa959049ed181008cd30a818ca4abc1.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 2348 wrote to memory of 1448	2348	0aa959049ed181008cd30a818ca4abc1.exe	28
PID 2348 wrote to memory of 1448	2348	0aa959049ed181008cd30a818ca4abc1.exe	28
PID 2348 wrote to memory of 1448	2348	0aa959049ed181008cd30a818ca4abc1.exe	28
PID 2348 wrote to memory of 1448	2348	0aa959049ed181008cd30a818ca4abc1.exe	28
PID 1448 wrote to memory of 2716	1448	cmd.exe	30
PID 1448 wrote to memory of 2716	1448	cmd.exe	30
PID 1448 wrote to memory of 2716	1448	cmd.exe	30
PID 1448 wrote to memory of 2716	1448	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\0aa959049ed181008cd30a818ca4abc1.exe
"C:\Users\Admin\AppData\Local\Temp\0aa959049ed181008cd30a818ca4abc1.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:2348
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1448
- - 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

Web Service

T1102

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/2348-0-0x0000000000890000-0x0000000000942000-memory.dmp

Filesize
712KB

Download
memory/2348-1-0x0000000074EA0000-0x000000007558E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-2-0x0000000004850000-0x0000000004890000-memory.dmp

Filesize
256KB

Download
memory/2348-42-0x0000000074EA0000-0x000000007558E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-48-0x0000000004850000-0x0000000004890000-memory.dmp

Filesize
256KB

Download
memory/2348-92-0x0000000004850000-0x0000000004890000-memory.dmp

Filesize
256KB

Download
memory/2348-93-0x0000000004850000-0x0000000004890000-memory.dmp

Filesize
256KB

Download