nitro | 33ee355f77eef2768f6f5e210f008eb78e396f4adc97f090124ced1100507679

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 01:55

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General

Target

28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe
Size

61KB
MD5

28c6930ca323e61d91b92e4bb843d0bb
SHA1

a2699d09bc912dff2cce4f1ebb1ad5e5dc470cf9
SHA256

33ee355f77eef2768f6f5e210f008eb78e396f4adc97f090124ced1100507679
SHA512

c0c44664f5f6e717f9878776f443fd56cffe87db6bc96ad80a74483aa2bf04ebbe7506d5387e661c185260d04372ccf28f96770e8348199514060b9e452d456a
SSDEEP

768:38ljT2GRLVbGQ8GcYxR8zD8LDwUzc80gmq3oP/oD0:38NxVD8GcYbr/0O8/oQ

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
Renames multiple (70) 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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe\""	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe

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
4	api.ipify.org
5	api.ipify.org

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	28c6930ca323e61d91b92e4bb843d0bb_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	28c6930ca323e61d91b92e4bb843d0bb_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
1704	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe
1704	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1620	WMIC.exe
Token: SeSecurityPrivilege	1620	WMIC.exe
Token: SeTakeOwnershipPrivilege	1620	WMIC.exe
Token: SeLoadDriverPrivilege	1620	WMIC.exe
Token: SeSystemProfilePrivilege	1620	WMIC.exe
Token: SeSystemtimePrivilege	1620	WMIC.exe
Token: SeProfSingleProcessPrivilege	1620	WMIC.exe
Token: SeIncBasePriorityPrivilege	1620	WMIC.exe
Token: SeCreatePagefilePrivilege	1620	WMIC.exe
Token: SeBackupPrivilege	1620	WMIC.exe
Token: SeRestorePrivilege	1620	WMIC.exe
Token: SeShutdownPrivilege	1620	WMIC.exe
Token: SeDebugPrivilege	1620	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1620	WMIC.exe
Token: SeRemoteShutdownPrivilege	1620	WMIC.exe
Token: SeUndockPrivilege	1620	WMIC.exe
Token: SeManageVolumePrivilege	1620	WMIC.exe
Token: 33	1620	WMIC.exe
Token: 34	1620	WMIC.exe
Token: 35	1620	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1620	WMIC.exe
Token: SeSecurityPrivilege	1620	WMIC.exe
Token: SeTakeOwnershipPrivilege	1620	WMIC.exe
Token: SeLoadDriverPrivilege	1620	WMIC.exe
Token: SeSystemProfilePrivilege	1620	WMIC.exe
Token: SeSystemtimePrivilege	1620	WMIC.exe
Token: SeProfSingleProcessPrivilege	1620	WMIC.exe
Token: SeIncBasePriorityPrivilege	1620	WMIC.exe
Token: SeCreatePagefilePrivilege	1620	WMIC.exe
Token: SeBackupPrivilege	1620	WMIC.exe
Token: SeRestorePrivilege	1620	WMIC.exe
Token: SeShutdownPrivilege	1620	WMIC.exe
Token: SeDebugPrivilege	1620	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1620	WMIC.exe
Token: SeRemoteShutdownPrivilege	1620	WMIC.exe
Token: SeUndockPrivilege	1620	WMIC.exe
Token: SeManageVolumePrivilege	1620	WMIC.exe
Token: 33	1620	WMIC.exe
Token: 34	1620	WMIC.exe
Token: 35	1620	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 1708	1704	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe	30
PID 1704 wrote to memory of 1708	1704	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe	30
PID 1704 wrote to memory of 1708	1704	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe	30
PID 1704 wrote to memory of 1708	1704	28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe	30
PID 1708 wrote to memory of 1620	1708	cmd.exe	32
PID 1708 wrote to memory of 1620	1708	cmd.exe	32
PID 1708 wrote to memory of 1620	1708	cmd.exe	32
PID 1708 wrote to memory of 1620	1708	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\28c6930ca323e61d91b92e4bb843d0bb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\28c6930ca323e61d91b92e4bb843d0bb_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:1704
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1620

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/1704-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1704-1-0x00000000013D0000-0x00000000013E6000-memory.dmp

Filesize
88KB

Download
memory/1704-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1704-22-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1704-26-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1704-78-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1704-79-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download