nitro | e5097f9d7958a9ce6fd508b22c1741b9bc5516914b65203bb97e3f4bfd764cad

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2024, 04:42

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General

Target
fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
Size 61KB
Sample241219-fb6yjaymht
SHA256 e5097f9d7958a9ce6fd508b22c1741b9bc5516914b65203bb97e3f4bfd764cad
MD5 fe7b5f6ec499c9c1e780c0313ecc63c0
SHA1 e1a26c44cf96bf2b6c1ccf66736fc5fa9b46d134
SHA512 66678ed190607fe4a3b61bb53c2adbbfd1e931d9c07c5899803b72bc4be31b881335d4d759990b28a69724c51a690a5a3c3c6885fab4948396c6389ee59dcd55
SSDEEP 768:CKsMqCXfVcWO/M9ZkiANIUK+3YLDwUzc80gmq3oP/oDw:CKseiM9ZkiAPKZr/0O8/os
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 (89) 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\\fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe\""	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe

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

Web Service

T1102

flow	ioc
15	discord.com
16	discord.com
41	discord.com
8	discord.com
9	discord.com
14	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
5	api.ipify.org
6	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"	fe7b5f6ec499c9c1e780c0313ecc63c0_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	fe7b5f6ec499c9c1e780c0313ecc63c0_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
4412	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
4412	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4852	WMIC.exe
Token: SeSecurityPrivilege	4852	WMIC.exe
Token: SeTakeOwnershipPrivilege	4852	WMIC.exe
Token: SeLoadDriverPrivilege	4852	WMIC.exe
Token: SeSystemProfilePrivilege	4852	WMIC.exe
Token: SeSystemtimePrivilege	4852	WMIC.exe
Token: SeProfSingleProcessPrivilege	4852	WMIC.exe
Token: SeIncBasePriorityPrivilege	4852	WMIC.exe
Token: SeCreatePagefilePrivilege	4852	WMIC.exe
Token: SeBackupPrivilege	4852	WMIC.exe
Token: SeRestorePrivilege	4852	WMIC.exe
Token: SeShutdownPrivilege	4852	WMIC.exe
Token: SeDebugPrivilege	4852	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4852	WMIC.exe
Token: SeRemoteShutdownPrivilege	4852	WMIC.exe
Token: SeUndockPrivilege	4852	WMIC.exe
Token: SeManageVolumePrivilege	4852	WMIC.exe
Token: 33	4852	WMIC.exe
Token: 34	4852	WMIC.exe
Token: 35	4852	WMIC.exe
Token: 36	4852	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4852	WMIC.exe
Token: SeSecurityPrivilege	4852	WMIC.exe
Token: SeTakeOwnershipPrivilege	4852	WMIC.exe
Token: SeLoadDriverPrivilege	4852	WMIC.exe
Token: SeSystemProfilePrivilege	4852	WMIC.exe
Token: SeSystemtimePrivilege	4852	WMIC.exe
Token: SeProfSingleProcessPrivilege	4852	WMIC.exe
Token: SeIncBasePriorityPrivilege	4852	WMIC.exe
Token: SeCreatePagefilePrivilege	4852	WMIC.exe
Token: SeBackupPrivilege	4852	WMIC.exe
Token: SeRestorePrivilege	4852	WMIC.exe
Token: SeShutdownPrivilege	4852	WMIC.exe
Token: SeDebugPrivilege	4852	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4852	WMIC.exe
Token: SeRemoteShutdownPrivilege	4852	WMIC.exe
Token: SeUndockPrivilege	4852	WMIC.exe
Token: SeManageVolumePrivilege	4852	WMIC.exe
Token: 33	4852	WMIC.exe
Token: 34	4852	WMIC.exe
Token: 35	4852	WMIC.exe
Token: 36	4852	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 1780	4412	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe	83
PID 4412 wrote to memory of 1780	4412	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe	83
PID 4412 wrote to memory of 1780	4412	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe	83
PID 1780 wrote to memory of 4852	1780	cmd.exe	85
PID 1780 wrote to memory of 4852	1780	cmd.exe	85
PID 1780 wrote to memory of 4852	1780	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe7b5f6ec499c9c1e780c0313ecc63c0_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:4412
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1780
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:4852