nitro | 570cc4b6530b319dfc71201010b2775acb89c94e7d42acdbc53f635f2ca4ee4a

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 05:36

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General

Target

73de3eeba18475c6860e39061b0174e6.exe
Size

62KB
MD5

73de3eeba18475c6860e39061b0174e6
SHA1

10a3823601b1a18edc62a5bbc83cd7c581f1da59
SHA256

570cc4b6530b319dfc71201010b2775acb89c94e7d42acdbc53f635f2ca4ee4a
SHA512

7f8974d9f71c8b01caa75df6c4dfdb363514d54815d6acd8834a0dd1bc2689bc031adf1b9cbd86554a926bb5d594c0be4fd96e1d8033d97ac5e9bcfe1575a54f
SSDEEP

768:bKsMqCXfVcWl3M9Zk4ANIUI2+QLDwUzc80gmq3oP/oDA:bKsexM9Zk4APxDr/0O8/oU

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 (64) 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-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\73de3eeba18475c6860e39061b0174e6.exe\""	73de3eeba18475c6860e39061b0174e6.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	73de3eeba18475c6860e39061b0174e6.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	73de3eeba18475c6860e39061b0174e6.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	73de3eeba18475c6860e39061b0174e6.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
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-1-5-21-3427588347-1492276948-3422228430-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	73de3eeba18475c6860e39061b0174e6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	73de3eeba18475c6860e39061b0174e6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2448	73de3eeba18475c6860e39061b0174e6.exe
2448	73de3eeba18475c6860e39061b0174e6.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	73de3eeba18475c6860e39061b0174e6.exe
Token: SeIncreaseQuotaPrivilege	2748	WMIC.exe
Token: SeSecurityPrivilege	2748	WMIC.exe
Token: SeTakeOwnershipPrivilege	2748	WMIC.exe
Token: SeLoadDriverPrivilege	2748	WMIC.exe
Token: SeSystemProfilePrivilege	2748	WMIC.exe
Token: SeSystemtimePrivilege	2748	WMIC.exe
Token: SeProfSingleProcessPrivilege	2748	WMIC.exe
Token: SeIncBasePriorityPrivilege	2748	WMIC.exe
Token: SeCreatePagefilePrivilege	2748	WMIC.exe
Token: SeBackupPrivilege	2748	WMIC.exe
Token: SeRestorePrivilege	2748	WMIC.exe
Token: SeShutdownPrivilege	2748	WMIC.exe
Token: SeDebugPrivilege	2748	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2748	WMIC.exe
Token: SeRemoteShutdownPrivilege	2748	WMIC.exe
Token: SeUndockPrivilege	2748	WMIC.exe
Token: SeManageVolumePrivilege	2748	WMIC.exe
Token: 33	2748	WMIC.exe
Token: 34	2748	WMIC.exe
Token: 35	2748	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2748	WMIC.exe
Token: SeSecurityPrivilege	2748	WMIC.exe
Token: SeTakeOwnershipPrivilege	2748	WMIC.exe
Token: SeLoadDriverPrivilege	2748	WMIC.exe
Token: SeSystemProfilePrivilege	2748	WMIC.exe
Token: SeSystemtimePrivilege	2748	WMIC.exe
Token: SeProfSingleProcessPrivilege	2748	WMIC.exe
Token: SeIncBasePriorityPrivilege	2748	WMIC.exe
Token: SeCreatePagefilePrivilege	2748	WMIC.exe
Token: SeBackupPrivilege	2748	WMIC.exe
Token: SeRestorePrivilege	2748	WMIC.exe
Token: SeShutdownPrivilege	2748	WMIC.exe
Token: SeDebugPrivilege	2748	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2748	WMIC.exe
Token: SeRemoteShutdownPrivilege	2748	WMIC.exe
Token: SeUndockPrivilege	2748	WMIC.exe
Token: SeManageVolumePrivilege	2748	WMIC.exe
Token: 33	2748	WMIC.exe
Token: 34	2748	WMIC.exe
Token: 35	2748	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 848	2448	73de3eeba18475c6860e39061b0174e6.exe	28
PID 2448 wrote to memory of 848	2448	73de3eeba18475c6860e39061b0174e6.exe	28
PID 2448 wrote to memory of 848	2448	73de3eeba18475c6860e39061b0174e6.exe	28
PID 2448 wrote to memory of 848	2448	73de3eeba18475c6860e39061b0174e6.exe	28
PID 848 wrote to memory of 2748	848	cmd.exe	30
PID 848 wrote to memory of 2748	848	cmd.exe	30
PID 848 wrote to memory of 2748	848	cmd.exe	30
PID 848 wrote to memory of 2748	848	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\73de3eeba18475c6860e39061b0174e6.exe
"C:\Users\Admin\AppData\Local\Temp\73de3eeba18475c6860e39061b0174e6.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:2448
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:848
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2748

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/2448-0-0x0000000000BC0000-0x0000000000BD6000-memory.dmp

Filesize
88KB

Download
memory/2448-1-0x0000000074960000-0x000000007504E000-memory.dmp

Filesize
6.9MB

Download
memory/2448-2-0x0000000004B70000-0x0000000004BB0000-memory.dmp

Filesize
256KB

Download
memory/2448-28-0x0000000074960000-0x000000007504E000-memory.dmp

Filesize
6.9MB

Download
memory/2448-33-0x0000000004B70000-0x0000000004BB0000-memory.dmp

Filesize
256KB

Download
memory/2448-72-0x0000000004B70000-0x0000000004BB0000-memory.dmp

Filesize
256KB

Download
memory/2448-73-0x0000000004B70000-0x0000000004BB0000-memory.dmp

Filesize
256KB

Download