nitro | 5f7c38b162bbd0cfef8dd27ab8ba47bf20f187dce05e045494956e2306995db7

Analysis

max time kernel
144s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-10-2024 19:01

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General

Target

23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe
Size

61KB
MD5

23e768609a0da73f7db18836ea7c8305
SHA1

e164494fd6d5ab908971cc1d4f24f0295ab7d400
SHA256

5f7c38b162bbd0cfef8dd27ab8ba47bf20f187dce05e045494956e2306995db7
SHA512

d1920fb5fe659d6c51fa9b1208ca7e6418f5d4a9054bd863a296e5dc049de33f5d8170cb379f7407769dfea05e29874fd22edbe5be9d0225f7b24379752c2cf5
SSDEEP

768:4KsMqCXfVcWO/M9ZkiANIUVcYLDwUzc80gmq3oP/oDi:4KseiM9ZkiAPTr/0O8/om

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 (66) 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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe\""	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe

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

Web Service

T1102

flow	ioc
11	discord.com
6	discord.com
7	discord.com
8	discord.com
9	discord.com
10	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
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-1-5-21-457978338-2990298471-2379561640-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	23e768609a0da73f7db18836ea7c8305_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	23e768609a0da73f7db18836ea7c8305_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
2720	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe
2720	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2720	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2840	WMIC.exe
Token: SeSecurityPrivilege	2840	WMIC.exe
Token: SeTakeOwnershipPrivilege	2840	WMIC.exe
Token: SeLoadDriverPrivilege	2840	WMIC.exe
Token: SeSystemProfilePrivilege	2840	WMIC.exe
Token: SeSystemtimePrivilege	2840	WMIC.exe
Token: SeProfSingleProcessPrivilege	2840	WMIC.exe
Token: SeIncBasePriorityPrivilege	2840	WMIC.exe
Token: SeCreatePagefilePrivilege	2840	WMIC.exe
Token: SeBackupPrivilege	2840	WMIC.exe
Token: SeRestorePrivilege	2840	WMIC.exe
Token: SeShutdownPrivilege	2840	WMIC.exe
Token: SeDebugPrivilege	2840	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2840	WMIC.exe
Token: SeRemoteShutdownPrivilege	2840	WMIC.exe
Token: SeUndockPrivilege	2840	WMIC.exe
Token: SeManageVolumePrivilege	2840	WMIC.exe
Token: 33	2840	WMIC.exe
Token: 34	2840	WMIC.exe
Token: 35	2840	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2840	WMIC.exe
Token: SeSecurityPrivilege	2840	WMIC.exe
Token: SeTakeOwnershipPrivilege	2840	WMIC.exe
Token: SeLoadDriverPrivilege	2840	WMIC.exe
Token: SeSystemProfilePrivilege	2840	WMIC.exe
Token: SeSystemtimePrivilege	2840	WMIC.exe
Token: SeProfSingleProcessPrivilege	2840	WMIC.exe
Token: SeIncBasePriorityPrivilege	2840	WMIC.exe
Token: SeCreatePagefilePrivilege	2840	WMIC.exe
Token: SeBackupPrivilege	2840	WMIC.exe
Token: SeRestorePrivilege	2840	WMIC.exe
Token: SeShutdownPrivilege	2840	WMIC.exe
Token: SeDebugPrivilege	2840	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2840	WMIC.exe
Token: SeRemoteShutdownPrivilege	2840	WMIC.exe
Token: SeUndockPrivilege	2840	WMIC.exe
Token: SeManageVolumePrivilege	2840	WMIC.exe
Token: 33	2840	WMIC.exe
Token: 34	2840	WMIC.exe
Token: 35	2840	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2816	2720	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe	30
PID 2720 wrote to memory of 2816	2720	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe	30
PID 2720 wrote to memory of 2816	2720	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe	30
PID 2720 wrote to memory of 2816	2720	23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe	30
PID 2816 wrote to memory of 2840	2816	cmd.exe	32
PID 2816 wrote to memory of 2840	2816	cmd.exe	32
PID 2816 wrote to memory of 2840	2816	cmd.exe	32
PID 2816 wrote to memory of 2840	2816	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\23e768609a0da73f7db18836ea7c8305_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\23e768609a0da73f7db18836ea7c8305_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:2720
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2840

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

Web Service

T1102

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/2720-0-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/2720-1-0x0000000000AF0000-0x0000000000B06000-memory.dmp

Filesize
88KB

Download
memory/2720-2-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-8-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/2720-12-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-74-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-75-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download