limerat | e76749d70a685f5f5456ce90f223404e2b7f143544426f17610a2b020b721886

Reason

Machine shutdown

General

Target

PortFowarding.exe
Size

28KB
MD5

61b1dac027f18514a7a0cc6c2475528c
SHA1

6605992eb04bdaa3e6a5f94d5e4baf5b548ef548
SHA256

e76749d70a685f5f5456ce90f223404e2b7f143544426f17610a2b020b721886
SHA512

4007b1d52e4ffa2842a5490f5c564a8bc9e939c044cf1d6eee3295c87d9b1142057e366efb38de7d4c26af3bbf2090fbd701c2b40527187b3bb4b1b4b1435614
SSDEEP

768:lpYK/6Dfw9Fj+ZySZl45NWi6KQlkB6Uyj:lpofw94Z9y6i9QlkMR

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
emhook123321
antivm
false
c2_url
https://pastebin.com/raw/zVU0mnS4
delay
15
download_payload
false
install
true
install_name
svhost.exe
main_folder
AppData
pin_spread
false
sub_folder
\Sys\
usb_spread
false

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/zVU0mnS4
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
Limerat family
limerat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	PortFowarding.exe

Executes dropped EXE 1 IoCs

pid	Process
3768	svhost.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
54	pastebin.com
53	pastebin.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	PortFowarding.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Shutdown.exe

Modifies data under HKEY_USERS 15 IoCs

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\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	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\EnableWindowColorization = "232"	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\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	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\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4024	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe
3768	svhost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3768	svhost.exe
Token: SeDebugPrivilege	3768	svhost.exe
Token: SeShutdownPrivilege	2472	Shutdown.exe
Token: SeRemoteShutdownPrivilege	2472	Shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3872	LogonUI.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 4024	4140	PortFowarding.exe	98
PID 4140 wrote to memory of 4024	4140	PortFowarding.exe	98
PID 4140 wrote to memory of 4024	4140	PortFowarding.exe	98
PID 4140 wrote to memory of 3768	4140	PortFowarding.exe	100
PID 4140 wrote to memory of 3768	4140	PortFowarding.exe	100
PID 4140 wrote to memory of 3768	4140	PortFowarding.exe	100
PID 3768 wrote to memory of 2472	3768	svhost.exe	114
PID 3768 wrote to memory of 2472	3768	svhost.exe	114
PID 3768 wrote to memory of 2472	3768	svhost.exe	114

C:\Users\Admin\AppData\Local\Temp\PortFowarding.exe
"C:\Users\Admin\AppData\Local\Temp\PortFowarding.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\Sys\svhost.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4024
- C:\Users\Admin\AppData\Roaming\Sys\svhost.exe
  "C:\Users\Admin\AppData\Roaming\Sys\svhost.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3768
- - C:\Windows\SysWOW64\Shutdown.exe
    Shutdown /r /f /t 00
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2472

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3928055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Sys\svhost.exe

Filesize
28KB

MD5
61b1dac027f18514a7a0cc6c2475528c

SHA1
6605992eb04bdaa3e6a5f94d5e4baf5b548ef548

SHA256
e76749d70a685f5f5456ce90f223404e2b7f143544426f17610a2b020b721886

SHA512
4007b1d52e4ffa2842a5490f5c564a8bc9e939c044cf1d6eee3295c87d9b1142057e366efb38de7d4c26af3bbf2090fbd701c2b40527187b3bb4b1b4b1435614

Download Submit
memory/3768-19-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/3768-26-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/3768-25-0x0000000007290000-0x000000000729C000-memory.dmp

Filesize
48KB

Download
memory/3768-24-0x0000000007280000-0x000000000728E000-memory.dmp

Filesize
56KB

Download
memory/3768-23-0x0000000006EF0000-0x0000000006EFA000-memory.dmp

Filesize
40KB

Download
memory/3768-22-0x00000000009F0000-0x00000000009FA000-memory.dmp

Filesize
40KB

Download
memory/3768-21-0x0000000007090000-0x0000000007122000-memory.dmp

Filesize
584KB

Download
memory/3768-20-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/3768-17-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/3768-18-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/4140-4-0x00000000050F0000-0x0000000005156000-memory.dmp

Filesize
408KB

Download
memory/4140-16-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/4140-6-0x0000000005CE0000-0x0000000006284000-memory.dmp

Filesize
5.6MB

Download
memory/4140-5-0x00000000750F0000-0x00000000758A0000-memory.dmp

Filesize
7.7MB

Download
memory/4140-0-0x00000000750FE000-0x00000000750FF000-memory.dmp

Filesize
4KB

Download
memory/4140-3-0x00000000750FE000-0x00000000750FF000-memory.dmp

Filesize
4KB

Download
memory/4140-2-0x0000000005050000-0x00000000050EC000-memory.dmp

Filesize
624KB

Download
memory/4140-1-0x0000000000690000-0x000000000069C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads