nitro | e5097f9d7958a9ce6fd508b22c1741b9bc5516914b65203bb97e3f4bfd764cad

Analysis

max time kernel
145s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
21-04-2024 04:56

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General

Target

fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
Size

61KB
MD5

fe7b5f6ec499c9c1e780c0313ecc63c0
SHA1

e1a26c44cf96bf2b6c1ccf66736fc5fa9b46d134
SHA256

e5097f9d7958a9ce6fd508b22c1741b9bc5516914b65203bb97e3f4bfd764cad
SHA512

66678ed190607fe4a3b61bb53c2adbbfd1e931d9c07c5899803b72bc4be31b881335d4d759990b28a69724c51a690a5a3c3c6885fab4948396c6389ee59dcd55
SSDEEP

768:CKsMqCXfVcWO/M9ZkiANIUK+3YLDwUzc80gmq3oP/oDw:CKseiM9ZkiAPKZr/0O8/os

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 (79) 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-1-5-21-4084619521-2220719027-1909462854-1000\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\Documents\desktop.ini	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\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
16	discord.com
17	discord.com
20	discord.com
59	discord.com
14	discord.com
15	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
7	api.ipify.org
8	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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5100	4636	WerFault.exe	88
2768	4636	WerFault.exe	88

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4636	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
4636	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4636	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4452	WMIC.exe
Token: SeSecurityPrivilege	4452	WMIC.exe
Token: SeTakeOwnershipPrivilege	4452	WMIC.exe
Token: SeLoadDriverPrivilege	4452	WMIC.exe
Token: SeSystemProfilePrivilege	4452	WMIC.exe
Token: SeSystemtimePrivilege	4452	WMIC.exe
Token: SeProfSingleProcessPrivilege	4452	WMIC.exe
Token: SeIncBasePriorityPrivilege	4452	WMIC.exe
Token: SeCreatePagefilePrivilege	4452	WMIC.exe
Token: SeBackupPrivilege	4452	WMIC.exe
Token: SeRestorePrivilege	4452	WMIC.exe
Token: SeShutdownPrivilege	4452	WMIC.exe
Token: SeDebugPrivilege	4452	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4452	WMIC.exe
Token: SeRemoteShutdownPrivilege	4452	WMIC.exe
Token: SeUndockPrivilege	4452	WMIC.exe
Token: SeManageVolumePrivilege	4452	WMIC.exe
Token: 33	4452	WMIC.exe
Token: 34	4452	WMIC.exe
Token: 35	4452	WMIC.exe
Token: 36	4452	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4452	WMIC.exe
Token: SeSecurityPrivilege	4452	WMIC.exe
Token: SeTakeOwnershipPrivilege	4452	WMIC.exe
Token: SeLoadDriverPrivilege	4452	WMIC.exe
Token: SeSystemProfilePrivilege	4452	WMIC.exe
Token: SeSystemtimePrivilege	4452	WMIC.exe
Token: SeProfSingleProcessPrivilege	4452	WMIC.exe
Token: SeIncBasePriorityPrivilege	4452	WMIC.exe
Token: SeCreatePagefilePrivilege	4452	WMIC.exe
Token: SeBackupPrivilege	4452	WMIC.exe
Token: SeRestorePrivilege	4452	WMIC.exe
Token: SeShutdownPrivilege	4452	WMIC.exe
Token: SeDebugPrivilege	4452	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4452	WMIC.exe
Token: SeRemoteShutdownPrivilege	4452	WMIC.exe
Token: SeUndockPrivilege	4452	WMIC.exe
Token: SeManageVolumePrivilege	4452	WMIC.exe
Token: 33	4452	WMIC.exe
Token: 34	4452	WMIC.exe
Token: 35	4452	WMIC.exe
Token: 36	4452	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 1388	4636	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe	89
PID 4636 wrote to memory of 1388	4636	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe	89
PID 4636 wrote to memory of 1388	4636	fe7b5f6ec499c9c1e780c0313ecc63c0_JaffaCakes118.exe	89
PID 1388 wrote to memory of 4452	1388	cmd.exe	91
PID 1388 wrote to memory of 4452	1388	cmd.exe	91
PID 1388 wrote to memory of 4452	1388	cmd.exe	91

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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1388
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4636 -s 2192
  2⤵
  - Program crash
  PID:5100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4636 -s 2232
  2⤵
  - Program crash
  PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4636 -ip 4636
1⤵
PID:3568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4636 -ip 4636
1⤵
PID:544

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/4636-0-0x0000000000980000-0x0000000000996000-memory.dmp

Filesize
88KB

Download
memory/4636-1-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4636-2-0x0000000005850000-0x0000000005DF4000-memory.dmp

Filesize
5.6MB

Download
memory/4636-3-0x0000000005340000-0x00000000053D2000-memory.dmp

Filesize
584KB

Download
memory/4636-4-0x00000000055D0000-0x00000000055E0000-memory.dmp

Filesize
64KB

Download
memory/4636-66-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4636-73-0x00000000055D0000-0x00000000055E0000-memory.dmp

Filesize
64KB

Download
memory/4636-88-0x00000000060B0000-0x00000000060BA000-memory.dmp

Filesize
40KB

Download
memory/4636-89-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download