nitro | ce35a705ef3459ab9189cbe0439f776a64fc6be992da0e61e77ff238c669af32

Analysis

max time kernel
150s
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
10-03-2024 02:20

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General

Target

bd6a28824f6d3bec6c3955b47b8e37f5.exe
Size

62KB
MD5

bd6a28824f6d3bec6c3955b47b8e37f5
SHA1

9e48389bfab6d77710cf8a2f7dec27467357278b
SHA256

ce35a705ef3459ab9189cbe0439f776a64fc6be992da0e61e77ff238c669af32
SHA512

a2566f6e7edb2834ad0db2382978043c635dd7acfb7480faa37efb925296f95e9c3bd19e67ed0c959501f7e55d14df0d4c8edf261bebdf61f15c48f5f897f2fd
SSDEEP

768:rASVqCXHV2bScj+mDhWEQwNIoHlYLDwUzc80gmq3oP/oDY:rASMSc95Qw5ar/0O8/o8

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 (112) 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-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bd6a28824f6d3bec6c3955b47b8e37f5.exe\""	bd6a28824f6d3bec6c3955b47b8e37f5.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	bd6a28824f6d3bec6c3955b47b8e37f5.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	bd6a28824f6d3bec6c3955b47b8e37f5.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	bd6a28824f6d3bec6c3955b47b8e37f5.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	bd6a28824f6d3bec6c3955b47b8e37f5.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	bd6a28824f6d3bec6c3955b47b8e37f5.exe

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

Web Service

T1102

flow	ioc
94	discord.com
37	discord.com
38	discord.com
45	discord.com
46	discord.com
49	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
33	api.ipify.org
34	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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	bd6a28824f6d3bec6c3955b47b8e37f5.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1708	368	WerFault.exe	87
4276	368	WerFault.exe	87

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
368	bd6a28824f6d3bec6c3955b47b8e37f5.exe
368	bd6a28824f6d3bec6c3955b47b8e37f5.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	368	bd6a28824f6d3bec6c3955b47b8e37f5.exe
Token: SeIncreaseQuotaPrivilege	4952	WMIC.exe
Token: SeSecurityPrivilege	4952	WMIC.exe
Token: SeTakeOwnershipPrivilege	4952	WMIC.exe
Token: SeLoadDriverPrivilege	4952	WMIC.exe
Token: SeSystemProfilePrivilege	4952	WMIC.exe
Token: SeSystemtimePrivilege	4952	WMIC.exe
Token: SeProfSingleProcessPrivilege	4952	WMIC.exe
Token: SeIncBasePriorityPrivilege	4952	WMIC.exe
Token: SeCreatePagefilePrivilege	4952	WMIC.exe
Token: SeBackupPrivilege	4952	WMIC.exe
Token: SeRestorePrivilege	4952	WMIC.exe
Token: SeShutdownPrivilege	4952	WMIC.exe
Token: SeDebugPrivilege	4952	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4952	WMIC.exe
Token: SeRemoteShutdownPrivilege	4952	WMIC.exe
Token: SeUndockPrivilege	4952	WMIC.exe
Token: SeManageVolumePrivilege	4952	WMIC.exe
Token: 33	4952	WMIC.exe
Token: 34	4952	WMIC.exe
Token: 35	4952	WMIC.exe
Token: 36	4952	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4952	WMIC.exe
Token: SeSecurityPrivilege	4952	WMIC.exe
Token: SeTakeOwnershipPrivilege	4952	WMIC.exe
Token: SeLoadDriverPrivilege	4952	WMIC.exe
Token: SeSystemProfilePrivilege	4952	WMIC.exe
Token: SeSystemtimePrivilege	4952	WMIC.exe
Token: SeProfSingleProcessPrivilege	4952	WMIC.exe
Token: SeIncBasePriorityPrivilege	4952	WMIC.exe
Token: SeCreatePagefilePrivilege	4952	WMIC.exe
Token: SeBackupPrivilege	4952	WMIC.exe
Token: SeRestorePrivilege	4952	WMIC.exe
Token: SeShutdownPrivilege	4952	WMIC.exe
Token: SeDebugPrivilege	4952	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4952	WMIC.exe
Token: SeRemoteShutdownPrivilege	4952	WMIC.exe
Token: SeUndockPrivilege	4952	WMIC.exe
Token: SeManageVolumePrivilege	4952	WMIC.exe
Token: 33	4952	WMIC.exe
Token: 34	4952	WMIC.exe
Token: 35	4952	WMIC.exe
Token: 36	4952	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 1480	368	bd6a28824f6d3bec6c3955b47b8e37f5.exe	90
PID 368 wrote to memory of 1480	368	bd6a28824f6d3bec6c3955b47b8e37f5.exe	90
PID 368 wrote to memory of 1480	368	bd6a28824f6d3bec6c3955b47b8e37f5.exe	90
PID 1480 wrote to memory of 4952	1480	cmd.exe	93
PID 1480 wrote to memory of 4952	1480	cmd.exe	93
PID 1480 wrote to memory of 4952	1480	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\bd6a28824f6d3bec6c3955b47b8e37f5.exe
"C:\Users\Admin\AppData\Local\Temp\bd6a28824f6d3bec6c3955b47b8e37f5.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:368
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1480
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 2188
  2⤵
  - Program crash
  PID:1708
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 2212
  2⤵
  - Program crash
  PID:4276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 368 -ip 368
1⤵
PID:3384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 368 -ip 368
1⤵
PID:4812

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/368-0-0x0000000000FA0000-0x0000000000FB6000-memory.dmp

Filesize
88KB

Download
memory/368-1-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/368-2-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/368-3-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/368-4-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

Filesize
64KB

Download
memory/368-5-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/368-9-0x0000000005AB0000-0x0000000005AC0000-memory.dmp

Filesize
64KB

Download
memory/368-121-0x0000000001830000-0x000000000183A000-memory.dmp

Filesize
40KB

Download
memory/368-122-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download