nitro | db6ded62d80e29a35b0a3fd6613fea1e65cc3cece41c6e281426d5cf5ff77e51

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 02:07

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General

Target

23e8858a3f412190e31be918bb91c72b.exe
Size

61KB
MD5

23e8858a3f412190e31be918bb91c72b
SHA1

355e30d1259d02a805a5a8d00848413321ceadd1
SHA256

db6ded62d80e29a35b0a3fd6613fea1e65cc3cece41c6e281426d5cf5ff77e51
SHA512

16af337585d5fb7d4055fdb1feabc3c1707af33e13c99ccc7c0575f153e821eb556a0a10381a4d087d17811e948d88a8a429b06cd53b149a2f288b6b4665cdb6
SSDEEP

768:9KsMqCXfVcWO/M9ZkiANIU+sYLDwUzc80gmq3oP/oDz:9KseiM9ZkiAPEr/0O8/o/

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 (80) 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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\23e8858a3f412190e31be918bb91c72b.exe\""	23e8858a3f412190e31be918bb91c72b.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	23e8858a3f412190e31be918bb91c72b.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	23e8858a3f412190e31be918bb91c72b.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	23e8858a3f412190e31be918bb91c72b.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	23e8858a3f412190e31be918bb91c72b.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	23e8858a3f412190e31be918bb91c72b.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
24	api.ipify.org
26	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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	23e8858a3f412190e31be918bb91c72b.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
328	4556	WerFault.exe	87
2288	4556	WerFault.exe	87

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4556	23e8858a3f412190e31be918bb91c72b.exe
4556	23e8858a3f412190e31be918bb91c72b.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4556	23e8858a3f412190e31be918bb91c72b.exe
Token: SeIncreaseQuotaPrivilege	2412	WMIC.exe
Token: SeSecurityPrivilege	2412	WMIC.exe
Token: SeTakeOwnershipPrivilege	2412	WMIC.exe
Token: SeLoadDriverPrivilege	2412	WMIC.exe
Token: SeSystemProfilePrivilege	2412	WMIC.exe
Token: SeSystemtimePrivilege	2412	WMIC.exe
Token: SeProfSingleProcessPrivilege	2412	WMIC.exe
Token: SeIncBasePriorityPrivilege	2412	WMIC.exe
Token: SeCreatePagefilePrivilege	2412	WMIC.exe
Token: SeBackupPrivilege	2412	WMIC.exe
Token: SeRestorePrivilege	2412	WMIC.exe
Token: SeShutdownPrivilege	2412	WMIC.exe
Token: SeDebugPrivilege	2412	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2412	WMIC.exe
Token: SeRemoteShutdownPrivilege	2412	WMIC.exe
Token: SeUndockPrivilege	2412	WMIC.exe
Token: SeManageVolumePrivilege	2412	WMIC.exe
Token: 33	2412	WMIC.exe
Token: 34	2412	WMIC.exe
Token: 35	2412	WMIC.exe
Token: 36	2412	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2412	WMIC.exe
Token: SeSecurityPrivilege	2412	WMIC.exe
Token: SeTakeOwnershipPrivilege	2412	WMIC.exe
Token: SeLoadDriverPrivilege	2412	WMIC.exe
Token: SeSystemProfilePrivilege	2412	WMIC.exe
Token: SeSystemtimePrivilege	2412	WMIC.exe
Token: SeProfSingleProcessPrivilege	2412	WMIC.exe
Token: SeIncBasePriorityPrivilege	2412	WMIC.exe
Token: SeCreatePagefilePrivilege	2412	WMIC.exe
Token: SeBackupPrivilege	2412	WMIC.exe
Token: SeRestorePrivilege	2412	WMIC.exe
Token: SeShutdownPrivilege	2412	WMIC.exe
Token: SeDebugPrivilege	2412	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2412	WMIC.exe
Token: SeRemoteShutdownPrivilege	2412	WMIC.exe
Token: SeUndockPrivilege	2412	WMIC.exe
Token: SeManageVolumePrivilege	2412	WMIC.exe
Token: 33	2412	WMIC.exe
Token: 34	2412	WMIC.exe
Token: 35	2412	WMIC.exe
Token: 36	2412	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 3524	4556	23e8858a3f412190e31be918bb91c72b.exe	92
PID 4556 wrote to memory of 3524	4556	23e8858a3f412190e31be918bb91c72b.exe	92
PID 4556 wrote to memory of 3524	4556	23e8858a3f412190e31be918bb91c72b.exe	92
PID 3524 wrote to memory of 2412	3524	cmd.exe	93
PID 3524 wrote to memory of 2412	3524	cmd.exe	93
PID 3524 wrote to memory of 2412	3524	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\23e8858a3f412190e31be918bb91c72b.exe
"C:\Users\Admin\AppData\Local\Temp\23e8858a3f412190e31be918bb91c72b.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:4556
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3524
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 2152
  2⤵
  - Program crash
  PID:328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 2152
  2⤵
  - Program crash
  PID:2288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4556 -ip 4556
1⤵
PID:788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4556 -ip 4556
1⤵
PID:3240

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/4556-0-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/4556-1-0x0000000000C20000-0x0000000000C36000-memory.dmp

Filesize
88KB

Download
memory/4556-2-0x0000000005AD0000-0x0000000006074000-memory.dmp

Filesize
5.6MB

Download
memory/4556-3-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/4556-4-0x0000000005850000-0x0000000005860000-memory.dmp

Filesize
64KB

Download
memory/4556-5-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/4556-6-0x0000000005850000-0x0000000005860000-memory.dmp

Filesize
64KB

Download
memory/4556-89-0x00000000012C0000-0x00000000012CA000-memory.dmp

Filesize
40KB

Download
memory/4556-90-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download