nitro | 55eea810979f5dc33f1507e5e544eec144dd11b73773d515a8ba22ae46ba4af2

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 (92) 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-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\NR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe\""	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Desktop\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\Pictures\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
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-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\wallpaper.png"	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2172	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
2172	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2532	WMIC.exe
Token: SeSecurityPrivilege	2532	WMIC.exe
Token: SeTakeOwnershipPrivilege	2532	WMIC.exe
Token: SeLoadDriverPrivilege	2532	WMIC.exe
Token: SeSystemProfilePrivilege	2532	WMIC.exe
Token: SeSystemtimePrivilege	2532	WMIC.exe
Token: SeProfSingleProcessPrivilege	2532	WMIC.exe
Token: SeIncBasePriorityPrivilege	2532	WMIC.exe
Token: SeCreatePagefilePrivilege	2532	WMIC.exe
Token: SeBackupPrivilege	2532	WMIC.exe
Token: SeRestorePrivilege	2532	WMIC.exe
Token: SeShutdownPrivilege	2532	WMIC.exe
Token: SeDebugPrivilege	2532	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2532	WMIC.exe
Token: SeRemoteShutdownPrivilege	2532	WMIC.exe
Token: SeUndockPrivilege	2532	WMIC.exe
Token: SeManageVolumePrivilege	2532	WMIC.exe
Token: 33	2532	WMIC.exe
Token: 34	2532	WMIC.exe
Token: 35	2532	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2532	WMIC.exe
Token: SeSecurityPrivilege	2532	WMIC.exe
Token: SeTakeOwnershipPrivilege	2532	WMIC.exe
Token: SeLoadDriverPrivilege	2532	WMIC.exe
Token: SeSystemProfilePrivilege	2532	WMIC.exe
Token: SeSystemtimePrivilege	2532	WMIC.exe
Token: SeProfSingleProcessPrivilege	2532	WMIC.exe
Token: SeIncBasePriorityPrivilege	2532	WMIC.exe
Token: SeCreatePagefilePrivilege	2532	WMIC.exe
Token: SeBackupPrivilege	2532	WMIC.exe
Token: SeRestorePrivilege	2532	WMIC.exe
Token: SeShutdownPrivilege	2532	WMIC.exe
Token: SeDebugPrivilege	2532	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2532	WMIC.exe
Token: SeRemoteShutdownPrivilege	2532	WMIC.exe
Token: SeUndockPrivilege	2532	WMIC.exe
Token: SeManageVolumePrivilege	2532	WMIC.exe
Token: 33	2532	WMIC.exe
Token: 34	2532	WMIC.exe
Token: 35	2532	WMIC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2072	2172	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe	28
PID 2172 wrote to memory of 2072	2172	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe	28
PID 2172 wrote to memory of 2072	2172	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe	28
PID 2172 wrote to memory of 2072	2172	e52f6985588dcf37d05e048a45ea19c1_JaffaCakes118.exe	28
PID 2072 wrote to memory of 2532	2072	cmd.exe	30
PID 2072 wrote to memory of 2532	2072	cmd.exe	30
PID 2072 wrote to memory of 2532	2072	cmd.exe	30
PID 2072 wrote to memory of 2532	2072	cmd.exe	30

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:2172
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2532

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/2172-0-0x0000000000B50000-0x0000000000B66000-memory.dmp

Filesize
88KB

Download
memory/2172-1-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2172-2-0x0000000004C40000-0x0000000004C80000-memory.dmp

Filesize
256KB

Download
memory/2172-58-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2172-65-0x0000000004C40000-0x0000000004C80000-memory.dmp

Filesize
256KB

Download
memory/2172-100-0x0000000004C40000-0x0000000004C80000-memory.dmp

Filesize
256KB

Download
memory/2172-101-0x0000000004C40000-0x0000000004C80000-memory.dmp

Filesize
256KB

Download