nitro | 8f9533aeee2064abb573e4d75b89b907e57d7d2fb7b2588fee88a903c2a7f735

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
16-02-2024 03:35

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General

Target

9f5707816aea4bbe395676187269a547.exe
Size

60KB
MD5

9f5707816aea4bbe395676187269a547
SHA1

9aeedd62bd3f7c0a3501725c69b2493ac2f5ee13
SHA256

8f9533aeee2064abb573e4d75b89b907e57d7d2fb7b2588fee88a903c2a7f735
SHA512

e4a3c9566a1e6f093e698983ca5313aa5328e8fbbfd3cb59999372e2e06a8f9a7e531a5ebd3a924f228cbf5bc4d7270bbc91e877cf2b0b6f7333a497ae42a316
SSDEEP

768:ROo9osCdarCuqEUoJIHDp8LDwUzc80gmq3oP/oDV:ROmGuqho4yr/0O8/oh

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 (83) 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\\9f5707816aea4bbe395676187269a547.exe\""	9f5707816aea4bbe395676187269a547.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	9f5707816aea4bbe395676187269a547.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	9f5707816aea4bbe395676187269a547.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	9f5707816aea4bbe395676187269a547.exe

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

Web Service

T1102

flow	ioc
6	discord.com
7	discord.com
8	discord.com
9	discord.com
10	discord.com
11	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"	9f5707816aea4bbe395676187269a547.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"	9f5707816aea4bbe395676187269a547.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2424	9f5707816aea4bbe395676187269a547.exe
2424	9f5707816aea4bbe395676187269a547.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2424	9f5707816aea4bbe395676187269a547.exe
Token: SeIncreaseQuotaPrivilege	844	WMIC.exe
Token: SeSecurityPrivilege	844	WMIC.exe
Token: SeTakeOwnershipPrivilege	844	WMIC.exe
Token: SeLoadDriverPrivilege	844	WMIC.exe
Token: SeSystemProfilePrivilege	844	WMIC.exe
Token: SeSystemtimePrivilege	844	WMIC.exe
Token: SeProfSingleProcessPrivilege	844	WMIC.exe
Token: SeIncBasePriorityPrivilege	844	WMIC.exe
Token: SeCreatePagefilePrivilege	844	WMIC.exe
Token: SeBackupPrivilege	844	WMIC.exe
Token: SeRestorePrivilege	844	WMIC.exe
Token: SeShutdownPrivilege	844	WMIC.exe
Token: SeDebugPrivilege	844	WMIC.exe
Token: SeSystemEnvironmentPrivilege	844	WMIC.exe
Token: SeRemoteShutdownPrivilege	844	WMIC.exe
Token: SeUndockPrivilege	844	WMIC.exe
Token: SeManageVolumePrivilege	844	WMIC.exe
Token: 33	844	WMIC.exe
Token: 34	844	WMIC.exe
Token: 35	844	WMIC.exe
Token: SeIncreaseQuotaPrivilege	844	WMIC.exe
Token: SeSecurityPrivilege	844	WMIC.exe
Token: SeTakeOwnershipPrivilege	844	WMIC.exe
Token: SeLoadDriverPrivilege	844	WMIC.exe
Token: SeSystemProfilePrivilege	844	WMIC.exe
Token: SeSystemtimePrivilege	844	WMIC.exe
Token: SeProfSingleProcessPrivilege	844	WMIC.exe
Token: SeIncBasePriorityPrivilege	844	WMIC.exe
Token: SeCreatePagefilePrivilege	844	WMIC.exe
Token: SeBackupPrivilege	844	WMIC.exe
Token: SeRestorePrivilege	844	WMIC.exe
Token: SeShutdownPrivilege	844	WMIC.exe
Token: SeDebugPrivilege	844	WMIC.exe
Token: SeSystemEnvironmentPrivilege	844	WMIC.exe
Token: SeRemoteShutdownPrivilege	844	WMIC.exe
Token: SeUndockPrivilege	844	WMIC.exe
Token: SeManageVolumePrivilege	844	WMIC.exe
Token: 33	844	WMIC.exe
Token: 34	844	WMIC.exe
Token: 35	844	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2764	2424	9f5707816aea4bbe395676187269a547.exe	28
PID 2424 wrote to memory of 2764	2424	9f5707816aea4bbe395676187269a547.exe	28
PID 2424 wrote to memory of 2764	2424	9f5707816aea4bbe395676187269a547.exe	28
PID 2424 wrote to memory of 2764	2424	9f5707816aea4bbe395676187269a547.exe	28
PID 2764 wrote to memory of 844	2764	cmd.exe	30
PID 2764 wrote to memory of 844	2764	cmd.exe	30
PID 2764 wrote to memory of 844	2764	cmd.exe	30
PID 2764 wrote to memory of 844	2764	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\9f5707816aea4bbe395676187269a547.exe
"C:\Users\Admin\AppData\Local\Temp\9f5707816aea4bbe395676187269a547.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:2424
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:844

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/2424-0-0x0000000000030000-0x0000000000046000-memory.dmp

Filesize
88KB

Download
memory/2424-1-0x0000000074550000-0x0000000074C3E000-memory.dmp

Filesize
6.9MB

Download
memory/2424-2-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download
memory/2424-24-0x0000000074550000-0x0000000074C3E000-memory.dmp

Filesize
6.9MB

Download
memory/2424-27-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download
memory/2424-91-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download
memory/2424-92-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download