nitro | 930942fa07b68fbb7ffa8b3ce7f1121b3d576567176ca242721e4be14fb84f5e

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
08-01-2024 08:01

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General

Target

4ae1ea60f3ce403f37b317a9ad21f15a.exe
Size

60KB
MD5

4ae1ea60f3ce403f37b317a9ad21f15a
SHA1

3b4fe3a2b10c6c8dff5d66ba63a286a7793ddaa7
SHA256

930942fa07b68fbb7ffa8b3ce7f1121b3d576567176ca242721e4be14fb84f5e
SHA512

0bb09e57988a675472a00189d60a455e36809c2d8f6943f4de76008ca2c88194887bbbe669d63184b716f0508b545900c23a5a78ab13e4da41b5eac645af32e0
SSDEEP

768:JOucKn7n1JSDNANIUdTvLDwUzc80gmq3oP/oDg:JO2SDNAPFr/0O8/o8

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 (85) 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-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\4ae1ea60f3ce403f37b317a9ad21f15a.exe\""	4ae1ea60f3ce403f37b317a9ad21f15a.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	4ae1ea60f3ce403f37b317a9ad21f15a.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	4ae1ea60f3ce403f37b317a9ad21f15a.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	4ae1ea60f3ce403f37b317a9ad21f15a.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
6	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-1-5-21-1603059206-2004189698-4139800220-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	4ae1ea60f3ce403f37b317a9ad21f15a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	4ae1ea60f3ce403f37b317a9ad21f15a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1740	4ae1ea60f3ce403f37b317a9ad21f15a.exe
1740	4ae1ea60f3ce403f37b317a9ad21f15a.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1740	4ae1ea60f3ce403f37b317a9ad21f15a.exe
Token: SeIncreaseQuotaPrivilege	2216	WMIC.exe
Token: SeSecurityPrivilege	2216	WMIC.exe
Token: SeTakeOwnershipPrivilege	2216	WMIC.exe
Token: SeLoadDriverPrivilege	2216	WMIC.exe
Token: SeSystemProfilePrivilege	2216	WMIC.exe
Token: SeSystemtimePrivilege	2216	WMIC.exe
Token: SeProfSingleProcessPrivilege	2216	WMIC.exe
Token: SeIncBasePriorityPrivilege	2216	WMIC.exe
Token: SeCreatePagefilePrivilege	2216	WMIC.exe
Token: SeBackupPrivilege	2216	WMIC.exe
Token: SeRestorePrivilege	2216	WMIC.exe
Token: SeShutdownPrivilege	2216	WMIC.exe
Token: SeDebugPrivilege	2216	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2216	WMIC.exe
Token: SeRemoteShutdownPrivilege	2216	WMIC.exe
Token: SeUndockPrivilege	2216	WMIC.exe
Token: SeManageVolumePrivilege	2216	WMIC.exe
Token: 33	2216	WMIC.exe
Token: 34	2216	WMIC.exe
Token: 35	2216	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2216	WMIC.exe
Token: SeSecurityPrivilege	2216	WMIC.exe
Token: SeTakeOwnershipPrivilege	2216	WMIC.exe
Token: SeLoadDriverPrivilege	2216	WMIC.exe
Token: SeSystemProfilePrivilege	2216	WMIC.exe
Token: SeSystemtimePrivilege	2216	WMIC.exe
Token: SeProfSingleProcessPrivilege	2216	WMIC.exe
Token: SeIncBasePriorityPrivilege	2216	WMIC.exe
Token: SeCreatePagefilePrivilege	2216	WMIC.exe
Token: SeBackupPrivilege	2216	WMIC.exe
Token: SeRestorePrivilege	2216	WMIC.exe
Token: SeShutdownPrivilege	2216	WMIC.exe
Token: SeDebugPrivilege	2216	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2216	WMIC.exe
Token: SeRemoteShutdownPrivilege	2216	WMIC.exe
Token: SeUndockPrivilege	2216	WMIC.exe
Token: SeManageVolumePrivilege	2216	WMIC.exe
Token: 33	2216	WMIC.exe
Token: 34	2216	WMIC.exe
Token: 35	2216	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 1292	1740	4ae1ea60f3ce403f37b317a9ad21f15a.exe	28
PID 1740 wrote to memory of 1292	1740	4ae1ea60f3ce403f37b317a9ad21f15a.exe	28
PID 1740 wrote to memory of 1292	1740	4ae1ea60f3ce403f37b317a9ad21f15a.exe	28
PID 1740 wrote to memory of 1292	1740	4ae1ea60f3ce403f37b317a9ad21f15a.exe	28
PID 1292 wrote to memory of 2216	1292	cmd.exe	30
PID 1292 wrote to memory of 2216	1292	cmd.exe	30
PID 1292 wrote to memory of 2216	1292	cmd.exe	30
PID 1292 wrote to memory of 2216	1292	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\4ae1ea60f3ce403f37b317a9ad21f15a.exe
"C:\Users\Admin\AppData\Local\Temp\4ae1ea60f3ce403f37b317a9ad21f15a.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:1740
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1292
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2216

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/1740-0-0x0000000000E80000-0x0000000000E96000-memory.dmp

Filesize
88KB

Download
memory/1740-1-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/1740-2-0x0000000004D50000-0x0000000004D90000-memory.dmp

Filesize
256KB

Download
memory/1740-3-0x00000000747B0000-0x0000000074E9E000-memory.dmp

Filesize
6.9MB

Download
memory/1740-4-0x0000000004D50000-0x0000000004D90000-memory.dmp

Filesize
256KB

Download
memory/1740-93-0x0000000004D50000-0x0000000004D90000-memory.dmp

Filesize
256KB

Download
memory/1740-94-0x0000000004D50000-0x0000000004D90000-memory.dmp

Filesize
256KB

Download