nitro | d035e86bc527b1bbe1aecee656db2263a0fc130c34a402ef501740c6ad257f7f

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/11/2024, 19:49

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General

Target
8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
Size 60KB
Sample241102-yjs1rawpfp
SHA256 d035e86bc527b1bbe1aecee656db2263a0fc130c34a402ef501740c6ad257f7f
MD5 8762a2d33a5ebda0d6f4ad092791d0ad
SHA1 c91b18dc9e5531d218910309d6be05b2a30760ab
SHA512 4b74c153fc8802d4a8ab09eb49e976b5611ac6d767692759aa5d5522a8a314df9db9b9ad1f48c2411dcf15421a6f7ce67f68eebd131bb4f67fdc32df603a2cc2
SSDEEP 768:DOucKn7n1JGDNANIUCHvLDwUzc80gmq3oP/oD/:DO2GDNAPyr/0O8/oL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nitro discovery persistence ransomware spyware stealer

Malware Config

Signatures

Nitro
A ransomware that demands Discord nitro gift codes to decrypt files.
ransomware nitro
Nitro family
nitro
Renames multiple (88) 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 3 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

Credentials from Web Browsers
T1555.003

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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe\""	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe

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

Web Service

T1102

flow	ioc
21	discord.com
22	discord.com
23	discord.com
47	discord.com
15	discord.com
16	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
11	api.ipify.org
12	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5032	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
5032	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	5032	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1436	WMIC.exe
Token: SeSecurityPrivilege	1436	WMIC.exe
Token: SeTakeOwnershipPrivilege	1436	WMIC.exe
Token: SeLoadDriverPrivilege	1436	WMIC.exe
Token: SeSystemProfilePrivilege	1436	WMIC.exe
Token: SeSystemtimePrivilege	1436	WMIC.exe
Token: SeProfSingleProcessPrivilege	1436	WMIC.exe
Token: SeIncBasePriorityPrivilege	1436	WMIC.exe
Token: SeCreatePagefilePrivilege	1436	WMIC.exe
Token: SeBackupPrivilege	1436	WMIC.exe
Token: SeRestorePrivilege	1436	WMIC.exe
Token: SeShutdownPrivilege	1436	WMIC.exe
Token: SeDebugPrivilege	1436	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1436	WMIC.exe
Token: SeRemoteShutdownPrivilege	1436	WMIC.exe
Token: SeUndockPrivilege	1436	WMIC.exe
Token: SeManageVolumePrivilege	1436	WMIC.exe
Token: 33	1436	WMIC.exe
Token: 34	1436	WMIC.exe
Token: 35	1436	WMIC.exe
Token: 36	1436	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1436	WMIC.exe
Token: SeSecurityPrivilege	1436	WMIC.exe
Token: SeTakeOwnershipPrivilege	1436	WMIC.exe
Token: SeLoadDriverPrivilege	1436	WMIC.exe
Token: SeSystemProfilePrivilege	1436	WMIC.exe
Token: SeSystemtimePrivilege	1436	WMIC.exe
Token: SeProfSingleProcessPrivilege	1436	WMIC.exe
Token: SeIncBasePriorityPrivilege	1436	WMIC.exe
Token: SeCreatePagefilePrivilege	1436	WMIC.exe
Token: SeBackupPrivilege	1436	WMIC.exe
Token: SeRestorePrivilege	1436	WMIC.exe
Token: SeShutdownPrivilege	1436	WMIC.exe
Token: SeDebugPrivilege	1436	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1436	WMIC.exe
Token: SeRemoteShutdownPrivilege	1436	WMIC.exe
Token: SeUndockPrivilege	1436	WMIC.exe
Token: SeManageVolumePrivilege	1436	WMIC.exe
Token: 33	1436	WMIC.exe
Token: 34	1436	WMIC.exe
Token: 35	1436	WMIC.exe
Token: 36	1436	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 1068	5032	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe	84
PID 5032 wrote to memory of 1068	5032	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe	84
PID 5032 wrote to memory of 1068	5032	8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe	84
PID 1068 wrote to memory of 1436	1068	cmd.exe	87
PID 1068 wrote to memory of 1436	1068	cmd.exe	87
PID 1068 wrote to memory of 1436	1068	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8762a2d33a5ebda0d6f4ad092791d0ad_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1436