nitro | fb9babb3bd29a77738bb4e4f37394992be0add9521ef64adece1845ea479313c

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03-02-2024 09:07

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General

Target

8bf1c633b4e20c6896a3fd307a840245.exe
Size

61KB
MD5

8bf1c633b4e20c6896a3fd307a840245
SHA1

20e579b22ca06c0509fbc194888bad168d5adb0f
SHA256

fb9babb3bd29a77738bb4e4f37394992be0add9521ef64adece1845ea479313c
SHA512

209880229d0fdeb738a74c9f6f38711b6b9806f0456248940df0fe197063fc6f8029c9fbf1e6b0c9a08526c732fd504deda930c800fc691d2995515644185d63
SSDEEP

768:YP+2AG1MXq9E3tnJvLDwUzc80gmq3oP/oDS:Vz819EJhr/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
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\\8bf1c633b4e20c6896a3fd307a840245.exe\""	8bf1c633b4e20c6896a3fd307a840245.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3427588347-1492276948-3422228430-1000\desktop.ini	8bf1c633b4e20c6896a3fd307a840245.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service

T1102

flow	ioc
9	discord.com
10	discord.com
11	discord.com
6	discord.com
7	discord.com
8	discord.com

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"	8bf1c633b4e20c6896a3fd307a840245.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"	8bf1c633b4e20c6896a3fd307a840245.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2880	8bf1c633b4e20c6896a3fd307a840245.exe
2880	8bf1c633b4e20c6896a3fd307a840245.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	8bf1c633b4e20c6896a3fd307a840245.exe
Token: SeIncreaseQuotaPrivilege	3052	WMIC.exe
Token: SeSecurityPrivilege	3052	WMIC.exe
Token: SeTakeOwnershipPrivilege	3052	WMIC.exe
Token: SeLoadDriverPrivilege	3052	WMIC.exe
Token: SeSystemProfilePrivilege	3052	WMIC.exe
Token: SeSystemtimePrivilege	3052	WMIC.exe
Token: SeProfSingleProcessPrivilege	3052	WMIC.exe
Token: SeIncBasePriorityPrivilege	3052	WMIC.exe
Token: SeCreatePagefilePrivilege	3052	WMIC.exe
Token: SeBackupPrivilege	3052	WMIC.exe
Token: SeRestorePrivilege	3052	WMIC.exe
Token: SeShutdownPrivilege	3052	WMIC.exe
Token: SeDebugPrivilege	3052	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3052	WMIC.exe
Token: SeRemoteShutdownPrivilege	3052	WMIC.exe
Token: SeUndockPrivilege	3052	WMIC.exe
Token: SeManageVolumePrivilege	3052	WMIC.exe
Token: 33	3052	WMIC.exe
Token: 34	3052	WMIC.exe
Token: 35	3052	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3052	WMIC.exe
Token: SeSecurityPrivilege	3052	WMIC.exe
Token: SeTakeOwnershipPrivilege	3052	WMIC.exe
Token: SeLoadDriverPrivilege	3052	WMIC.exe
Token: SeSystemProfilePrivilege	3052	WMIC.exe
Token: SeSystemtimePrivilege	3052	WMIC.exe
Token: SeProfSingleProcessPrivilege	3052	WMIC.exe
Token: SeIncBasePriorityPrivilege	3052	WMIC.exe
Token: SeCreatePagefilePrivilege	3052	WMIC.exe
Token: SeBackupPrivilege	3052	WMIC.exe
Token: SeRestorePrivilege	3052	WMIC.exe
Token: SeShutdownPrivilege	3052	WMIC.exe
Token: SeDebugPrivilege	3052	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3052	WMIC.exe
Token: SeRemoteShutdownPrivilege	3052	WMIC.exe
Token: SeUndockPrivilege	3052	WMIC.exe
Token: SeManageVolumePrivilege	3052	WMIC.exe
Token: 33	3052	WMIC.exe
Token: 34	3052	WMIC.exe
Token: 35	3052	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2856	2880	8bf1c633b4e20c6896a3fd307a840245.exe	28
PID 2880 wrote to memory of 2856	2880	8bf1c633b4e20c6896a3fd307a840245.exe	28
PID 2880 wrote to memory of 2856	2880	8bf1c633b4e20c6896a3fd307a840245.exe	28
PID 2880 wrote to memory of 2856	2880	8bf1c633b4e20c6896a3fd307a840245.exe	28
PID 2856 wrote to memory of 3052	2856	cmd.exe	30
PID 2856 wrote to memory of 3052	2856	cmd.exe	30
PID 2856 wrote to memory of 3052	2856	cmd.exe	30
PID 2856 wrote to memory of 3052	2856	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\8bf1c633b4e20c6896a3fd307a840245.exe
"C:\Users\Admin\AppData\Local\Temp\8bf1c633b4e20c6896a3fd307a840245.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:2880
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2856
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3052

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/2880-0-0x00000000010E0000-0x00000000010F6000-memory.dmp

Filesize
88KB

Download
memory/2880-1-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2880-2-0x0000000004B60000-0x0000000004BA0000-memory.dmp

Filesize
256KB

Download
memory/2880-9-0x0000000004B60000-0x0000000004BA0000-memory.dmp

Filesize
256KB

Download
memory/2880-10-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2880-11-0x0000000004B60000-0x0000000004BA0000-memory.dmp

Filesize
256KB

Download
memory/2880-12-0x0000000004B60000-0x0000000004BA0000-memory.dmp

Filesize
256KB

Download