limerat | d89a56bbfa46016796046572213f98af65abdd863fef32f8eaf50ace8fb1f921

Analysis

max time kernel
24s
max time network
25s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29-05-2024 15:12

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Reason

Machine shutdown

Report Analysis Logs

General

Target

New-Client.exe
Size

28KB
MD5

2d0c62fc7cc0fcddec7cdfd2b4aacbd7
SHA1

6dab1f5cb32d4c3a5f8789b07f4c2930a49d1956
SHA256

d89a56bbfa46016796046572213f98af65abdd863fef32f8eaf50ace8fb1f921
SHA512

e48f0474c68674a4907f22f89f6a6f3f074128731e5ee453e3482d22851d567055b9b49fe21b30f9c1858fa2276ec5bd34a3abe8205c530550ff4a2ea9826e53
SSDEEP

384:0B+Sbj6NKSfa6JBAHNefWXqDpOinsmsDdvDKNrCeJE3WNgOT5E/JXr4CQro3lcTR:ypSS6JBwNOOism0d45NP5211wj

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
07903088
antivm
true
c2_url
https://pastebin.com/raw/J0uqtmU4
delay
3
download_payload
false
install
false
install_name
Wservices.exe
main_folder
Temp
pin_spread
false
sub_folder
\
usb_spread
false

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/J0uqtmU4
download_payload
false
install
false
pin_spread
false
usb_spread
false

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

25 pastebin.com
26 pastebin.com

flow	ioc
25	pastebin.com
26	pastebin.com

Modifies data under HKEY_USERS 15 IoCs

Processes:

LogonUI.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "197"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

New-Client.exe

pid process

4448 New-Client.exe
4448 New-Client.exe
4448 New-Client.exe

pid	process
4448	New-Client.exe
4448	New-Client.exe
4448	New-Client.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

New-Client.exeShutdown.exe

description	pid	process
Token: SeDebugPrivilege	4448	New-Client.exe
Token: SeDebugPrivilege	4448	New-Client.exe
Token: SeShutdownPrivilege	3820	Shutdown.exe
Token: SeRemoteShutdownPrivilege	3820	Shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

LogonUI.exe

pid process

3240 LogonUI.exe

pid	process
3240	LogonUI.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

New-Client.exe

description	pid	process	target process
PID 4448 wrote to memory of 3820	4448	New-Client.exe	Shutdown.exe
PID 4448 wrote to memory of 3820	4448	New-Client.exe	Shutdown.exe
PID 4448 wrote to memory of 3820	4448	New-Client.exe	Shutdown.exe

C:\Users\Admin\AppData\Local\Temp\New-Client.exe
"C:\Users\Admin\AppData\Local\Temp\New-Client.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Windows\SysWOW64\Shutdown.exe
  Shutdown /s /f /t 00
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3820

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39b7855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/4448-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/4448-1-0x0000000000F20000-0x0000000000F2C000-memory.dmp

Filesize
48KB

Download
memory/4448-2-0x00000000058F0000-0x000000000598C000-memory.dmp

Filesize
624KB

Download
memory/4448-3-0x0000000005A00000-0x0000000005A66000-memory.dmp

Filesize
408KB

Download
memory/4448-4-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4448-5-0x00000000066E0000-0x0000000006C84000-memory.dmp

Filesize
5.6MB

Download
memory/4448-6-0x0000000007B10000-0x0000000007BA2000-memory.dmp

Filesize
584KB

Download
memory/4448-7-0x0000000007A60000-0x0000000007A6C000-memory.dmp

Filesize
48KB

Download
memory/4448-8-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads