nitro | 7eceee2d481d80031eb26f51bd11fbf9671c123107c83b0100b5dbaaf52ec833

Analysis

max time kernel
147s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 07:34

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General

Target
cad7af2b2714b813aa083c5e692cd7ba.exe
Size 9.0MB
Sample240315-jelnjsba8x
SHA256 7eceee2d481d80031eb26f51bd11fbf9671c123107c83b0100b5dbaaf52ec833
MD5 cad7af2b2714b813aa083c5e692cd7ba
SHA1 24eb7d428398fb6fe79da729e8ff416b0970d6d8
SHA512 5f8902b38668bbf17001e47cb5045c590f1d733e00e0dddcdc5f95c883f93afdddac97d3a6f37981b9648869fd3247220d92adef8ca42e6a3b7630ac9300c4b8
SSDEEP 768:HOucKn7n1JGDNANIUARbvLDwUzc80gmq3oP/oDE:HO2GDNAPA9r/0O8/o4
MD5 SHA1 SHA512 SSDEEP

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 (79) 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-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\cad7af2b2714b813aa083c5e692cd7ba.exe\""	cad7af2b2714b813aa083c5e692cd7ba.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	cad7af2b2714b813aa083c5e692cd7ba.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	cad7af2b2714b813aa083c5e692cd7ba.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	cad7af2b2714b813aa083c5e692cd7ba.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	cad7af2b2714b813aa083c5e692cd7ba.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	cad7af2b2714b813aa083c5e692cd7ba.exe

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

Web Service

T1102

flow	ioc
40	discord.com
41	discord.com
42	discord.com
43	discord.com
83	discord.com
35	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
30	api.ipify.org
32	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	cad7af2b2714b813aa083c5e692cd7ba.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1436	1132	WerFault.exe	86
3672	1132	WerFault.exe	86

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1132	cad7af2b2714b813aa083c5e692cd7ba.exe
1132	cad7af2b2714b813aa083c5e692cd7ba.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	1132	cad7af2b2714b813aa083c5e692cd7ba.exe
Token: SeIncreaseQuotaPrivilege	5008	WMIC.exe
Token: SeSecurityPrivilege	5008	WMIC.exe
Token: SeTakeOwnershipPrivilege	5008	WMIC.exe
Token: SeLoadDriverPrivilege	5008	WMIC.exe
Token: SeSystemProfilePrivilege	5008	WMIC.exe
Token: SeSystemtimePrivilege	5008	WMIC.exe
Token: SeProfSingleProcessPrivilege	5008	WMIC.exe
Token: SeIncBasePriorityPrivilege	5008	WMIC.exe
Token: SeCreatePagefilePrivilege	5008	WMIC.exe
Token: SeBackupPrivilege	5008	WMIC.exe
Token: SeRestorePrivilege	5008	WMIC.exe
Token: SeShutdownPrivilege	5008	WMIC.exe
Token: SeDebugPrivilege	5008	WMIC.exe
Token: SeSystemEnvironmentPrivilege	5008	WMIC.exe
Token: SeRemoteShutdownPrivilege	5008	WMIC.exe
Token: SeUndockPrivilege	5008	WMIC.exe
Token: SeManageVolumePrivilege	5008	WMIC.exe
Token: 33	5008	WMIC.exe
Token: 34	5008	WMIC.exe
Token: 35	5008	WMIC.exe
Token: 36	5008	WMIC.exe
Token: SeIncreaseQuotaPrivilege	5008	WMIC.exe
Token: SeSecurityPrivilege	5008	WMIC.exe
Token: SeTakeOwnershipPrivilege	5008	WMIC.exe
Token: SeLoadDriverPrivilege	5008	WMIC.exe
Token: SeSystemProfilePrivilege	5008	WMIC.exe
Token: SeSystemtimePrivilege	5008	WMIC.exe
Token: SeProfSingleProcessPrivilege	5008	WMIC.exe
Token: SeIncBasePriorityPrivilege	5008	WMIC.exe
Token: SeCreatePagefilePrivilege	5008	WMIC.exe
Token: SeBackupPrivilege	5008	WMIC.exe
Token: SeRestorePrivilege	5008	WMIC.exe
Token: SeShutdownPrivilege	5008	WMIC.exe
Token: SeDebugPrivilege	5008	WMIC.exe
Token: SeSystemEnvironmentPrivilege	5008	WMIC.exe
Token: SeRemoteShutdownPrivilege	5008	WMIC.exe
Token: SeUndockPrivilege	5008	WMIC.exe
Token: SeManageVolumePrivilege	5008	WMIC.exe
Token: 33	5008	WMIC.exe
Token: 34	5008	WMIC.exe
Token: 35	5008	WMIC.exe
Token: 36	5008	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 2960	1132	cad7af2b2714b813aa083c5e692cd7ba.exe	91
PID 1132 wrote to memory of 2960	1132	cad7af2b2714b813aa083c5e692cd7ba.exe	91
PID 1132 wrote to memory of 2960	1132	cad7af2b2714b813aa083c5e692cd7ba.exe	91
PID 2960 wrote to memory of 5008	2960	cmd.exe	93
PID 2960 wrote to memory of 5008	2960	cmd.exe	93
PID 2960 wrote to memory of 5008	2960	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\cad7af2b2714b813aa083c5e692cd7ba.exe
"C:\Users\Admin\AppData\Local\Temp\cad7af2b2714b813aa083c5e692cd7ba.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:1132
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:5008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1132 -s 2156
  2⤵
  - Program crash
  PID:1436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1132 -s 1004
  2⤵
  - Program crash
  PID:3672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1132 -ip 1132
1⤵
PID:440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1132 -ip 1132
1⤵
PID:4088

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/1132-0-0x0000000000240000-0x0000000000256000-memory.dmp

Download

memory/1132-1-0x0000000074D90000-0x0000000075540000-memory.dmp

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memory/1132-2-0x00000000050F0000-0x0000000005694000-memory.dmp

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memory/1132-3-0x0000000004C30000-0x0000000004CC2000-memory.dmp

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memory/1132-4-0x0000000004BF0000-0x0000000004C00000-memory.dmp

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memory/1132-34-0x0000000074D90000-0x0000000075540000-memory.dmp

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memory/1132-39-0x0000000004BF0000-0x0000000004C00000-memory.dmp

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memory/1132-88-0x0000000005950000-0x000000000595A000-memory.dmp

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memory/1132-89-0x0000000074D90000-0x0000000075540000-memory.dmp

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