nitro | a00d950fbee25d407f79f5d7211cbd1f15d27f89bf5714e44f222c9013f6c131

Analysis

max time kernel
109s
max time network
108s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 09:28

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General

Target

1484a0ecf720d351f8897c2f9b3f5046.exe
Size

61KB
MD5

1484a0ecf720d351f8897c2f9b3f5046
SHA1

8770a72054cc21f07051df2b4c0f7775cc4fa731
SHA256

a00d950fbee25d407f79f5d7211cbd1f15d27f89bf5714e44f222c9013f6c131
SHA512

136ef22f74ed55859bb143a26b2dbf1f4bb84c267d461e60d44934eb879a9efc4902e05dd386bb4926ea2cc469f8f7efe24ae6d6a4bb45511b4939558b379d97
SSDEEP

768:iKsMqCXfVcWO/M9ZkiANIUhyIYLDwUzc80gmq3oP/oDn:iKseiM9ZkiAPhAr/0O8/o7

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 (81) 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-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1484a0ecf720d351f8897c2f9b3f5046.exe\""	1484a0ecf720d351f8897c2f9b3f5046.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	1484a0ecf720d351f8897c2f9b3f5046.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	1484a0ecf720d351f8897c2f9b3f5046.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	1484a0ecf720d351f8897c2f9b3f5046.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
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-1-5-21-2444714103-3190537498-3629098939-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	1484a0ecf720d351f8897c2f9b3f5046.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	1484a0ecf720d351f8897c2f9b3f5046.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2692	1484a0ecf720d351f8897c2f9b3f5046.exe
2692	1484a0ecf720d351f8897c2f9b3f5046.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	1484a0ecf720d351f8897c2f9b3f5046.exe
Token: SeIncreaseQuotaPrivilege	1740	WMIC.exe
Token: SeSecurityPrivilege	1740	WMIC.exe
Token: SeTakeOwnershipPrivilege	1740	WMIC.exe
Token: SeLoadDriverPrivilege	1740	WMIC.exe
Token: SeSystemProfilePrivilege	1740	WMIC.exe
Token: SeSystemtimePrivilege	1740	WMIC.exe
Token: SeProfSingleProcessPrivilege	1740	WMIC.exe
Token: SeIncBasePriorityPrivilege	1740	WMIC.exe
Token: SeCreatePagefilePrivilege	1740	WMIC.exe
Token: SeBackupPrivilege	1740	WMIC.exe
Token: SeRestorePrivilege	1740	WMIC.exe
Token: SeShutdownPrivilege	1740	WMIC.exe
Token: SeDebugPrivilege	1740	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1740	WMIC.exe
Token: SeRemoteShutdownPrivilege	1740	WMIC.exe
Token: SeUndockPrivilege	1740	WMIC.exe
Token: SeManageVolumePrivilege	1740	WMIC.exe
Token: 33	1740	WMIC.exe
Token: 34	1740	WMIC.exe
Token: 35	1740	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1740	WMIC.exe
Token: SeSecurityPrivilege	1740	WMIC.exe
Token: SeTakeOwnershipPrivilege	1740	WMIC.exe
Token: SeLoadDriverPrivilege	1740	WMIC.exe
Token: SeSystemProfilePrivilege	1740	WMIC.exe
Token: SeSystemtimePrivilege	1740	WMIC.exe
Token: SeProfSingleProcessPrivilege	1740	WMIC.exe
Token: SeIncBasePriorityPrivilege	1740	WMIC.exe
Token: SeCreatePagefilePrivilege	1740	WMIC.exe
Token: SeBackupPrivilege	1740	WMIC.exe
Token: SeRestorePrivilege	1740	WMIC.exe
Token: SeShutdownPrivilege	1740	WMIC.exe
Token: SeDebugPrivilege	1740	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1740	WMIC.exe
Token: SeRemoteShutdownPrivilege	1740	WMIC.exe
Token: SeUndockPrivilege	1740	WMIC.exe
Token: SeManageVolumePrivilege	1740	WMIC.exe
Token: 33	1740	WMIC.exe
Token: 34	1740	WMIC.exe
Token: 35	1740	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2720	2692	1484a0ecf720d351f8897c2f9b3f5046.exe	30
PID 2692 wrote to memory of 2720	2692	1484a0ecf720d351f8897c2f9b3f5046.exe	30
PID 2692 wrote to memory of 2720	2692	1484a0ecf720d351f8897c2f9b3f5046.exe	30
PID 2692 wrote to memory of 2720	2692	1484a0ecf720d351f8897c2f9b3f5046.exe	30
PID 2720 wrote to memory of 1740	2720	cmd.exe	32
PID 2720 wrote to memory of 1740	2720	cmd.exe	32
PID 2720 wrote to memory of 1740	2720	cmd.exe	32
PID 2720 wrote to memory of 1740	2720	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\1484a0ecf720d351f8897c2f9b3f5046.exe
"C:\Users\Admin\AppData\Local\Temp\1484a0ecf720d351f8897c2f9b3f5046.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:2692
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1740

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/2692-0-0x00000000000F0000-0x0000000000106000-memory.dmp

Filesize
88KB

Download
memory/2692-1-0x0000000074B50000-0x000000007523E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-2-0x0000000004AF0000-0x0000000004B30000-memory.dmp

Filesize
256KB

Download
memory/2692-24-0x0000000074B50000-0x000000007523E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-29-0x0000000004AF0000-0x0000000004B30000-memory.dmp

Filesize
256KB

Download
memory/2692-89-0x0000000004AF0000-0x0000000004B30000-memory.dmp

Filesize
256KB

Download
memory/2692-90-0x0000000004AF0000-0x0000000004B30000-memory.dmp

Filesize
256KB

Download