nitro | 7008ae96755d552b01144718f9095a48f10160f2cb4d672e043d5de3528a271e

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2024 14:45

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General

Target

bc11fc2a90a7a421d0bd7019dc3110ba.exe
Size

61KB
MD5

bc11fc2a90a7a421d0bd7019dc3110ba
SHA1

a9ac39e4b7ae65ec263f94737b4b4dd212da709a
SHA256

7008ae96755d552b01144718f9095a48f10160f2cb4d672e043d5de3528a271e
SHA512

ffbe9218a85ad4be477fe9dcbfe09f8554c6c597e11c8a5bf87c48f2560677c2478330fd949e8c1066842df5df74d39cc8c0880916ebb943a15dc67558bd9a48
SSDEEP

768:8KsMqCXfVcWfeM9ZkiANIUX1YLDwUzc80gmq3oP/oD/:8Kse2M9ZkiAP6r/0O8/oj

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 (84) 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-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bc11fc2a90a7a421d0bd7019dc3110ba.exe\""	bc11fc2a90a7a421d0bd7019dc3110ba.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	bc11fc2a90a7a421d0bd7019dc3110ba.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	bc11fc2a90a7a421d0bd7019dc3110ba.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	bc11fc2a90a7a421d0bd7019dc3110ba.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	bc11fc2a90a7a421d0bd7019dc3110ba.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	bc11fc2a90a7a421d0bd7019dc3110ba.exe

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

Web Service

T1102

flow	ioc
26	discord.com
32	discord.com
37	discord.com
42	discord.com
103	discord.com
24	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
19	api.ipify.org
11	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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	bc11fc2a90a7a421d0bd7019dc3110ba.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1168	6036	WerFault.exe	90
1708	6036	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
6036	bc11fc2a90a7a421d0bd7019dc3110ba.exe
6036	bc11fc2a90a7a421d0bd7019dc3110ba.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	6036	bc11fc2a90a7a421d0bd7019dc3110ba.exe
Token: SeIncreaseQuotaPrivilege	2976	WMIC.exe
Token: SeSecurityPrivilege	2976	WMIC.exe
Token: SeTakeOwnershipPrivilege	2976	WMIC.exe
Token: SeLoadDriverPrivilege	2976	WMIC.exe
Token: SeSystemProfilePrivilege	2976	WMIC.exe
Token: SeSystemtimePrivilege	2976	WMIC.exe
Token: SeProfSingleProcessPrivilege	2976	WMIC.exe
Token: SeIncBasePriorityPrivilege	2976	WMIC.exe
Token: SeCreatePagefilePrivilege	2976	WMIC.exe
Token: SeBackupPrivilege	2976	WMIC.exe
Token: SeRestorePrivilege	2976	WMIC.exe
Token: SeShutdownPrivilege	2976	WMIC.exe
Token: SeDebugPrivilege	2976	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2976	WMIC.exe
Token: SeRemoteShutdownPrivilege	2976	WMIC.exe
Token: SeUndockPrivilege	2976	WMIC.exe
Token: SeManageVolumePrivilege	2976	WMIC.exe
Token: 33	2976	WMIC.exe
Token: 34	2976	WMIC.exe
Token: 35	2976	WMIC.exe
Token: 36	2976	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2976	WMIC.exe
Token: SeSecurityPrivilege	2976	WMIC.exe
Token: SeTakeOwnershipPrivilege	2976	WMIC.exe
Token: SeLoadDriverPrivilege	2976	WMIC.exe
Token: SeSystemProfilePrivilege	2976	WMIC.exe
Token: SeSystemtimePrivilege	2976	WMIC.exe
Token: SeProfSingleProcessPrivilege	2976	WMIC.exe
Token: SeIncBasePriorityPrivilege	2976	WMIC.exe
Token: SeCreatePagefilePrivilege	2976	WMIC.exe
Token: SeBackupPrivilege	2976	WMIC.exe
Token: SeRestorePrivilege	2976	WMIC.exe
Token: SeShutdownPrivilege	2976	WMIC.exe
Token: SeDebugPrivilege	2976	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2976	WMIC.exe
Token: SeRemoteShutdownPrivilege	2976	WMIC.exe
Token: SeUndockPrivilege	2976	WMIC.exe
Token: SeManageVolumePrivilege	2976	WMIC.exe
Token: 33	2976	WMIC.exe
Token: 34	2976	WMIC.exe
Token: 35	2976	WMIC.exe
Token: 36	2976	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 6036 wrote to memory of 2176	6036	bc11fc2a90a7a421d0bd7019dc3110ba.exe	91
PID 6036 wrote to memory of 2176	6036	bc11fc2a90a7a421d0bd7019dc3110ba.exe	91
PID 6036 wrote to memory of 2176	6036	bc11fc2a90a7a421d0bd7019dc3110ba.exe	91
PID 2176 wrote to memory of 2976	2176	cmd.exe	93
PID 2176 wrote to memory of 2976	2176	cmd.exe	93
PID 2176 wrote to memory of 2976	2176	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\bc11fc2a90a7a421d0bd7019dc3110ba.exe
"C:\Users\Admin\AppData\Local\Temp\bc11fc2a90a7a421d0bd7019dc3110ba.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:6036
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2176
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 6036 -s 2196
  2⤵
  - Program crash
  PID:1168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 6036 -s 1644
  2⤵
  - Program crash
  PID:1708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 6036 -ip 6036
1⤵
PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 6036 -ip 6036
1⤵
PID:212

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/6036-0-0x0000000000A30000-0x0000000000A46000-memory.dmp

Filesize
88KB

Download
memory/6036-1-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/6036-2-0x00000000058D0000-0x0000000005E74000-memory.dmp

Filesize
5.6MB

Download
memory/6036-3-0x0000000005420000-0x00000000054B2000-memory.dmp

Filesize
584KB

Download
memory/6036-4-0x00000000053A0000-0x00000000053B0000-memory.dmp

Filesize
64KB

Download
memory/6036-50-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/6036-61-0x00000000053A0000-0x00000000053B0000-memory.dmp

Filesize
64KB

Download
memory/6036-93-0x00000000063A0000-0x00000000063AA000-memory.dmp

Filesize
40KB

Download
memory/6036-94-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download