limerat | d58a10b9880957e29e614f2fbfc9a0e50b9e2479820fafe2942eb1e40e9d2b1c

Reason

Machine shutdown

General

Target
menangmulu.exe
Size 390KB
Sample260508-e3rr9acz7t
SHA256 d58a10b9880957e29e614f2fbfc9a0e50b9e2479820fafe2942eb1e40e9d2b1c
MD5 8c94f3d4525c6e094293231bf361a2ab
SHA1 6447df273331e4754010e18bfc0356eb98942786
SHA512 e8f2d1be2ad03a767daf32010f3c3cead6f4df3d7e0cbecba6171626597dcc3e2bac3e4854a1f8a373573d86ae971b3d94a52438180aee0c5b9a1f21cd2e2688
SSDEEP 768:Vf17VimixsFh9J0k5NDiXVgqCY6UugGwog1s3xg//L//////////y//////////K:VfKmixsJJXX0kiuxwo4uxg/uS
TLSH
T13D844B2437D0F01EC69D5AB28F86F0B816703D495E568A663ACCB3DF39BED904978361
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution limerat persistence rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
obLD1OX2BxgpMEpbbH2On6Gyw9Tl9gcYKTBKW2x9jp8=
antivm
true
c2_url
https://pastebin.com/raw/LFNLLKKX
delay
3
download_payload
true
install
true
install_name
menangmulu.exe
main_folder
AppData
payload_url
https://menangmulu.jp.net/
pin_spread
true
sub_folder
\
usb_spread
true

Signatures

Family: LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat 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-1-5-21-312252282-3884318443-358092420-1000\Control Panel\International\Geo\Nation	menangmulu.exe

Executes dropped EXE 1 IoCs

pid	Process
1844	menangmulu.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	menangmulu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	menangmulu.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	menangmulu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	menangmulu.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4644	1844	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 3 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	menangmulu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	menangmulu.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
4396	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1844	menangmulu.exe
Token: SeDebugPrivilege	1844	menangmulu.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 4396	2780	menangmulu.exe	86
PID 2780 wrote to memory of 1844	2780	menangmulu.exe	88

C:\Users\Admin\AppData\Local\Temp\menangmulu.exe
"C:\Users\Admin\AppData\Local\Temp\menangmulu.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\menangmulu.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4396
- C:\Users\Admin\AppData\Roaming\menangmulu.exe
  "C:\Users\Admin\AppData\Roaming\menangmulu.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1844
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1844 -s 1504
    3⤵
    - Program crash
    PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1844 -ip 1844
1⤵
PID:3204

Network

MITRE ATT&CK Enterprise v16

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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

menangmulu.exe

Path C:\Users\Admin\AppData\Roaming\menangmulu.exe
Size 390KB
SHA256 d58a10b9880957e29e614f2fbfc9a0e50b9e2479820fafe2942eb1e40e9d2b1c
MD5 8c94f3d4525c6e094293231bf361a2ab
SHA1 6447df273331e4754010e18bfc0356eb98942786
SHA512 e8f2d1be2ad03a767daf32010f3c3cead6f4df3d7e0cbecba6171626597dcc3e2bac3e4854a1f8a373573d86ae971b3d94a52438180aee0c5b9a1f21cd2e2688
SSDEEP 768:Vf17VimixsFh9J0k5NDiXVgqCY6UugGwog1s3xg//L//////////y//////////K:VfKmixsJJXX0kiuxwo4uxg/uS
TLSH
T13D844B2437D0F01EC69D5AB28F86F0B816703D495E568A663ACCB3DF39BED904978361
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1844-15-0x0000000005680000-0x0000000005690000-memory.dmp

Download

memory/2780-0-0x0000000000AF0000-0x0000000000B58000-memory.dmp

Download

memory/2780-1-0x00000000055B0000-0x000000000564C000-memory.dmp

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memory/2780-2-0x0000000005510000-0x0000000005576000-memory.dmp

Download

memory/2780-3-0x0000000005810000-0x0000000005820000-memory.dmp

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memory/2780-4-0x0000000006210000-0x00000000067B4000-memory.dmp

Download

memory/2780-14-0x0000000005480000-0x00000000054FE000-memory.dmp

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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