nitro | 452122b0fe32b7ebf79cdc387378d6e5bdc65ef82e6b1c24f5e3a2b0e8ddfbe4

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
15-03-2024 14:28

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General

Target

cba654cf359b8d6175303ac28d6c1bd5.exe
Size

61KB
MD5

cba654cf359b8d6175303ac28d6c1bd5
SHA1

4ee1f00227c608083bf6f3a27d08e2a80da4472e
SHA256

452122b0fe32b7ebf79cdc387378d6e5bdc65ef82e6b1c24f5e3a2b0e8ddfbe4
SHA512

1307cda5755c056ce4b01c28a6b7d556bf302ea0829abd8c338bfe3fbcb51267d83f8eb2839d5f57eb8fdf3335a1841de0801b4a7cdf98e8a2fef9b12e7d250e
SSDEEP

768:pKsMqCXfVcWlQM9ZkiANIULSYLDwUzc80gmq3oP/oD9:pKseSM9ZkiAPLr/0O8/o5

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 (92) 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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\cba654cf359b8d6175303ac28d6c1bd5.exe\""	cba654cf359b8d6175303ac28d6c1bd5.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	cba654cf359b8d6175303ac28d6c1bd5.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	cba654cf359b8d6175303ac28d6c1bd5.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	cba654cf359b8d6175303ac28d6c1bd5.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
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-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	cba654cf359b8d6175303ac28d6c1bd5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	cba654cf359b8d6175303ac28d6c1bd5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1632	cba654cf359b8d6175303ac28d6c1bd5.exe
1632	cba654cf359b8d6175303ac28d6c1bd5.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	cba654cf359b8d6175303ac28d6c1bd5.exe
Token: SeIncreaseQuotaPrivilege	1696	WMIC.exe
Token: SeSecurityPrivilege	1696	WMIC.exe
Token: SeTakeOwnershipPrivilege	1696	WMIC.exe
Token: SeLoadDriverPrivilege	1696	WMIC.exe
Token: SeSystemProfilePrivilege	1696	WMIC.exe
Token: SeSystemtimePrivilege	1696	WMIC.exe
Token: SeProfSingleProcessPrivilege	1696	WMIC.exe
Token: SeIncBasePriorityPrivilege	1696	WMIC.exe
Token: SeCreatePagefilePrivilege	1696	WMIC.exe
Token: SeBackupPrivilege	1696	WMIC.exe
Token: SeRestorePrivilege	1696	WMIC.exe
Token: SeShutdownPrivilege	1696	WMIC.exe
Token: SeDebugPrivilege	1696	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1696	WMIC.exe
Token: SeRemoteShutdownPrivilege	1696	WMIC.exe
Token: SeUndockPrivilege	1696	WMIC.exe
Token: SeManageVolumePrivilege	1696	WMIC.exe
Token: 33	1696	WMIC.exe
Token: 34	1696	WMIC.exe
Token: 35	1696	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1696	WMIC.exe
Token: SeSecurityPrivilege	1696	WMIC.exe
Token: SeTakeOwnershipPrivilege	1696	WMIC.exe
Token: SeLoadDriverPrivilege	1696	WMIC.exe
Token: SeSystemProfilePrivilege	1696	WMIC.exe
Token: SeSystemtimePrivilege	1696	WMIC.exe
Token: SeProfSingleProcessPrivilege	1696	WMIC.exe
Token: SeIncBasePriorityPrivilege	1696	WMIC.exe
Token: SeCreatePagefilePrivilege	1696	WMIC.exe
Token: SeBackupPrivilege	1696	WMIC.exe
Token: SeRestorePrivilege	1696	WMIC.exe
Token: SeShutdownPrivilege	1696	WMIC.exe
Token: SeDebugPrivilege	1696	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1696	WMIC.exe
Token: SeRemoteShutdownPrivilege	1696	WMIC.exe
Token: SeUndockPrivilege	1696	WMIC.exe
Token: SeManageVolumePrivilege	1696	WMIC.exe
Token: 33	1696	WMIC.exe
Token: 34	1696	WMIC.exe
Token: 35	1696	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2204	1632	cba654cf359b8d6175303ac28d6c1bd5.exe	28
PID 1632 wrote to memory of 2204	1632	cba654cf359b8d6175303ac28d6c1bd5.exe	28
PID 1632 wrote to memory of 2204	1632	cba654cf359b8d6175303ac28d6c1bd5.exe	28
PID 1632 wrote to memory of 2204	1632	cba654cf359b8d6175303ac28d6c1bd5.exe	28
PID 2204 wrote to memory of 1696	2204	cmd.exe	30
PID 2204 wrote to memory of 1696	2204	cmd.exe	30
PID 2204 wrote to memory of 1696	2204	cmd.exe	30
PID 2204 wrote to memory of 1696	2204	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\cba654cf359b8d6175303ac28d6c1bd5.exe
"C:\Users\Admin\AppData\Local\Temp\cba654cf359b8d6175303ac28d6c1bd5.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:1632
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1696

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/1632-0-0x0000000000B80000-0x0000000000B96000-memory.dmp

Filesize
88KB

Download
memory/1632-1-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/1632-2-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/1632-46-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/1632-51-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/1632-100-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/1632-101-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download