nitro | 5fcc0d771615c34aae003a2dede09255a7ccf62455d29a06d6b1024ccff05ee8

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19-04-2024 17:28

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General

Target

b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe
Size

61KB
MD5

c0d5c092b08dec24d255e0d686da9848
SHA1

c20d4772984d3b3fe570375c74becb5315be14f8
SHA256

b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420
SHA512

7ebc6ea3f4c9c370ef40d1bbb09409acb1bc67d195520f59801f48f9261c4d560c93c0a4e8d13961e55f7a6274400cb0afb858453b35964352c4f46230dd20f1
SSDEEP

768:FKsMqCXfVcWO/M9ZkiANIUMDYLDwUzc80gmq3oP/oDW:FKseiM9ZkiAP3r/0O8/oq

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 (82) 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-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe\""	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
14	discord.com
16	discord.com
21	discord.com
24	discord.com
27	discord.com
50	discord.com

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
8	api.ipify.org
9	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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
872	528	WerFault.exe	83
1044	528	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
528	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe
528	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	528	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe
Token: SeIncreaseQuotaPrivilege	4028	WMIC.exe
Token: SeSecurityPrivilege	4028	WMIC.exe
Token: SeTakeOwnershipPrivilege	4028	WMIC.exe
Token: SeLoadDriverPrivilege	4028	WMIC.exe
Token: SeSystemProfilePrivilege	4028	WMIC.exe
Token: SeSystemtimePrivilege	4028	WMIC.exe
Token: SeProfSingleProcessPrivilege	4028	WMIC.exe
Token: SeIncBasePriorityPrivilege	4028	WMIC.exe
Token: SeCreatePagefilePrivilege	4028	WMIC.exe
Token: SeBackupPrivilege	4028	WMIC.exe
Token: SeRestorePrivilege	4028	WMIC.exe
Token: SeShutdownPrivilege	4028	WMIC.exe
Token: SeDebugPrivilege	4028	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4028	WMIC.exe
Token: SeRemoteShutdownPrivilege	4028	WMIC.exe
Token: SeUndockPrivilege	4028	WMIC.exe
Token: SeManageVolumePrivilege	4028	WMIC.exe
Token: 33	4028	WMIC.exe
Token: 34	4028	WMIC.exe
Token: 35	4028	WMIC.exe
Token: 36	4028	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4028	WMIC.exe
Token: SeSecurityPrivilege	4028	WMIC.exe
Token: SeTakeOwnershipPrivilege	4028	WMIC.exe
Token: SeLoadDriverPrivilege	4028	WMIC.exe
Token: SeSystemProfilePrivilege	4028	WMIC.exe
Token: SeSystemtimePrivilege	4028	WMIC.exe
Token: SeProfSingleProcessPrivilege	4028	WMIC.exe
Token: SeIncBasePriorityPrivilege	4028	WMIC.exe
Token: SeCreatePagefilePrivilege	4028	WMIC.exe
Token: SeBackupPrivilege	4028	WMIC.exe
Token: SeRestorePrivilege	4028	WMIC.exe
Token: SeShutdownPrivilege	4028	WMIC.exe
Token: SeDebugPrivilege	4028	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4028	WMIC.exe
Token: SeRemoteShutdownPrivilege	4028	WMIC.exe
Token: SeUndockPrivilege	4028	WMIC.exe
Token: SeManageVolumePrivilege	4028	WMIC.exe
Token: 33	4028	WMIC.exe
Token: 34	4028	WMIC.exe
Token: 35	4028	WMIC.exe
Token: 36	4028	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 1204	528	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe	84
PID 528 wrote to memory of 1204	528	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe	84
PID 528 wrote to memory of 1204	528	b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe	84
PID 1204 wrote to memory of 4028	1204	cmd.exe	86
PID 1204 wrote to memory of 4028	1204	cmd.exe	86
PID 1204 wrote to memory of 4028	1204	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.exe
"C:\Users\Admin\AppData\Local\Temp\b09e0d502b9b512921e230c6f231c332c835134c39211266d3279871d6214420.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:528
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 2284
  2⤵
  - Program crash
  PID:872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 2304
  2⤵
  - Program crash
  PID:1044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 528 -ip 528
1⤵
PID:4028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 528 -ip 528
1⤵
PID:2532

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/528-0-0x00000000001E0000-0x00000000001F6000-memory.dmp

Filesize
88KB

Download
memory/528-1-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/528-2-0x00000000050B0000-0x0000000005654000-memory.dmp

Filesize
5.6MB

Download
memory/528-3-0x0000000004BE0000-0x0000000004C72000-memory.dmp

Filesize
584KB

Download
memory/528-4-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/528-68-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download
memory/528-74-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/528-91-0x0000000005950000-0x000000000595A000-memory.dmp

Filesize
40KB

Download
memory/528-92-0x0000000074BD0000-0x0000000075380000-memory.dmp

Filesize
7.7MB

Download