limerat | f81bc717944ec8a599c8276d9d3b1de4b995d5570139590d263b39e47e87ba3d

General

Target

xdwd.exe
Size

25KB
MD5

aae04417cc07c39988d4fbe0e85fc9bd
SHA1

2d51b49f8f1faeba674dd0993911e8f65b4d2258
SHA256

f81bc717944ec8a599c8276d9d3b1de4b995d5570139590d263b39e47e87ba3d
SHA512

53cc6468da9be1f4a3cc3089b1ed6a7544eb5cc5f91ae8dc1390688ffe10ad9aff1df224a5cd936276440ee95cb4afcaec7cf4f63332297864179c3266560dfb
SSDEEP

384:EB+Sbj6NKIPw6LZhAHt2vTh34EnWb5j4kDhlzCTJEUmNYEYQro3lcOjsjr:CpI46Lnwt4aE+RHtN8oj

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
1337
antivm
false
c2_url
https://pastebin.com/raw/rACMKa5f
delay
3
download_payload
false
install
true
install_name
xdwd.exe
main_folder
AppData
pin_spread
false
sub_folder
\xdwd\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/rACMKa5f
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

Processes:

xdwd.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation xdwd.exe
Executes dropped EXE 1 IoCs

Processes:

xdwd.exe

pid process

1120 xdwd.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

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

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	xdwd.exe

flow	ioc
28	pastebin.com
29	pastebin.com

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

Processes:

xdwd.exeschtasks.exexdwd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xdwd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xdwd.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

Processes:

schtasks.exe

pid process

2388 schtasks.exe

pid	process
2388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

Processes:

xdwd.exe

pid	process
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe
1120	xdwd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

xdwd.exe

description pid process

Token: SeDebugPrivilege 1120 xdwd.exe
Token: SeDebugPrivilege 1120 xdwd.exe

description	pid	process
Token: SeDebugPrivilege	1120	xdwd.exe
Token: SeDebugPrivilege	1120	xdwd.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

xdwd.exe

description	pid	process	target process
PID 1500 wrote to memory of 2388	1500	xdwd.exe	schtasks.exe
PID 1500 wrote to memory of 2388	1500	xdwd.exe	schtasks.exe
PID 1500 wrote to memory of 2388	1500	xdwd.exe	schtasks.exe
PID 1500 wrote to memory of 1120	1500	xdwd.exe	xdwd.exe
PID 1500 wrote to memory of 1120	1500	xdwd.exe	xdwd.exe
PID 1500 wrote to memory of 1120	1500	xdwd.exe	xdwd.exe

C:\Users\Admin\AppData\Local\Temp\xdwd.exe
"C:\Users\Admin\AppData\Local\Temp\xdwd.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\xdwd\xdwd.exe'"
2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2388

C:\Users\Admin\AppData\Roaming\xdwd\xdwd.exe
"C:\Users\Admin\AppData\Roaming\xdwd\xdwd.exe"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1120

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\Local\Microsoft\CLR_v4.0_32\UsageLogs\xdwd.exe.log

Filesize
709B

MD5
8a1197be130e48aa5aeeafd43eb6bb9f

SHA1
cb790c7c216e41524348eaa0e5b74926e78dbfc6

SHA256
547474087ec8f71dfd32b76f9b74c86f9844addf5082df37562a2c2c0cae4bfb

SHA512
4ad9d8dbbc253c8d7b1c2b4ec5f115c770f02bdbbc21ca0b422e251a3a98331e169c5062cabf7da81d5ae0d295b3778ef105ef82709df1a4ace71be288b8f166

Download Submit
C:\Users\Admin\AppData\Roaming\xdwd\xdwd.exe

Filesize
25KB

MD5
aae04417cc07c39988d4fbe0e85fc9bd

SHA1
2d51b49f8f1faeba674dd0993911e8f65b4d2258

SHA256
f81bc717944ec8a599c8276d9d3b1de4b995d5570139590d263b39e47e87ba3d

SHA512
53cc6468da9be1f4a3cc3089b1ed6a7544eb5cc5f91ae8dc1390688ffe10ad9aff1df224a5cd936276440ee95cb4afcaec7cf4f63332297864179c3266560dfb

Download Submit
memory/1120-17-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/1120-22-0x0000000005EB0000-0x0000000005ECE000-memory.dmp

Filesize
120KB

Download
memory/1120-21-0x00000000077F0000-0x0000000007882000-memory.dmp

Filesize
584KB

Download
memory/1120-20-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/1120-19-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/1120-18-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/1500-3-0x0000000005090000-0x00000000050F6000-memory.dmp

Filesize
408KB

Download
memory/1500-16-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/1500-5-0x0000000005DF0000-0x0000000006394000-memory.dmp

Filesize
5.6MB

Download
memory/1500-4-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/1500-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/1500-2-0x0000000004FF0000-0x000000000508C000-memory.dmp

Filesize
624KB

Download
memory/1500-1-0x0000000000660000-0x000000000066C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads