nitro | 55eea810979f5dc33f1507e5e544eec144dd11b73773d515a8ba22ae46ba4af2

Analysis

max time kernel
93s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07-04-2024 14:51

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General

Target

e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
Size

61KB
MD5

e52f6985588dcf37d05e048a45ea19c1
SHA1

c4eae2eb74150016b2825465cc2476b3f6bfdfc8
SHA256

55eea810979f5dc33f1507e5e544eec144dd11b73773d515a8ba22ae46ba4af2
SHA512

9333232f4bb6a9ca6d7cdb3edf6523fb6b995ee58d40818e556ec75d2a795d443c8f5d1a6e64ae6640dd0e4700e87509a764a83e561e014df302904f0a88e610
SSDEEP

768:WKsMqCXfVcWlQM9ZkiANIULTYLDwUzc80gmq3oP/oDi:WKseSM9ZkiAPQr/0O8/oG

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 (65) 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-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe\""	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe

Drops desktop.ini file(s) 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	e52f6985588dcf37d05e048a45ea19c1_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
6	api.ipify.org
7	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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2004	4808	WerFault.exe	85
540	4808	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4808	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
4808	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4808	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1880	WMIC.exe
Token: SeSecurityPrivilege	1880	WMIC.exe
Token: SeTakeOwnershipPrivilege	1880	WMIC.exe
Token: SeLoadDriverPrivilege	1880	WMIC.exe
Token: SeSystemProfilePrivilege	1880	WMIC.exe
Token: SeSystemtimePrivilege	1880	WMIC.exe
Token: SeProfSingleProcessPrivilege	1880	WMIC.exe
Token: SeIncBasePriorityPrivilege	1880	WMIC.exe
Token: SeCreatePagefilePrivilege	1880	WMIC.exe
Token: SeBackupPrivilege	1880	WMIC.exe
Token: SeRestorePrivilege	1880	WMIC.exe
Token: SeShutdownPrivilege	1880	WMIC.exe
Token: SeDebugPrivilege	1880	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1880	WMIC.exe
Token: SeRemoteShutdownPrivilege	1880	WMIC.exe
Token: SeUndockPrivilege	1880	WMIC.exe
Token: SeManageVolumePrivilege	1880	WMIC.exe
Token: 33	1880	WMIC.exe
Token: 34	1880	WMIC.exe
Token: 35	1880	WMIC.exe
Token: 36	1880	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1880	WMIC.exe
Token: SeSecurityPrivilege	1880	WMIC.exe
Token: SeTakeOwnershipPrivilege	1880	WMIC.exe
Token: SeLoadDriverPrivilege	1880	WMIC.exe
Token: SeSystemProfilePrivilege	1880	WMIC.exe
Token: SeSystemtimePrivilege	1880	WMIC.exe
Token: SeProfSingleProcessPrivilege	1880	WMIC.exe
Token: SeIncBasePriorityPrivilege	1880	WMIC.exe
Token: SeCreatePagefilePrivilege	1880	WMIC.exe
Token: SeBackupPrivilege	1880	WMIC.exe
Token: SeRestorePrivilege	1880	WMIC.exe
Token: SeShutdownPrivilege	1880	WMIC.exe
Token: SeDebugPrivilege	1880	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1880	WMIC.exe
Token: SeRemoteShutdownPrivilege	1880	WMIC.exe
Token: SeUndockPrivilege	1880	WMIC.exe
Token: SeManageVolumePrivilege	1880	WMIC.exe
Token: 33	1880	WMIC.exe
Token: 34	1880	WMIC.exe
Token: 35	1880	WMIC.exe
Token: 36	1880	WMIC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 3968	4808	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe	88
PID 4808 wrote to memory of 3968	4808	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe	88
PID 4808 wrote to memory of 3968	4808	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe	88
PID 3968 wrote to memory of 1880	3968	cmd.exe	90
PID 3968 wrote to memory of 1880	3968	cmd.exe	90
PID 3968 wrote to memory of 1880	3968	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e52f6985588dcf37d05e048a45ea19c1_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:4808
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3968
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 2124
  2⤵
  - Program crash
  PID:2004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 2124
  2⤵
  - Program crash
  PID:540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4808 -ip 4808
1⤵
PID:1284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4808 -ip 4808
1⤵
PID:4388

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

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/4808-0-0x0000000000D40000-0x0000000000D56000-memory.dmp

Filesize
88KB

Download
memory/4808-1-0x0000000075000000-0x00000000757B0000-memory.dmp

Filesize
7.7MB

Download
memory/4808-2-0x0000000005B20000-0x00000000060C4000-memory.dmp

Filesize
5.6MB

Download
memory/4808-3-0x0000000005610000-0x00000000056A2000-memory.dmp

Filesize
584KB

Download
memory/4808-4-0x00000000058C0000-0x00000000058D0000-memory.dmp

Filesize
64KB

Download
memory/4808-67-0x0000000075000000-0x00000000757B0000-memory.dmp

Filesize
7.7MB

Download
memory/4808-73-0x00000000058C0000-0x00000000058D0000-memory.dmp

Filesize
64KB

Download
memory/4808-74-0x00000000063E0000-0x00000000063EA000-memory.dmp

Filesize
40KB

Download
memory/4808-75-0x0000000075000000-0x00000000757B0000-memory.dmp

Filesize
7.7MB

Download