limerat | a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138

General

Target

a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe
Size

28KB
MD5

1d21e4dc9b9eb05b637330b6283bb885
SHA1

060b978da94f34f917610893fa4999f58661b962
SHA256

a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138
SHA512

dd45658872f9f91f457c249bbe3a9cae7f0d2e24866c704d5571c5ad808de347a41088a180619c0ab25139f80a6f011fd1d1160a2727cc29a860ac17db5670a7
SSDEEP

384:vB+Sbj6NKyfA6h5AH9SJu9qDU/zwGHMWPvDKNrCeJE3WNgyRbM/YPeU2pE8wQroh:JpyI6h5w9H/zwGsWn45NTRw/YPeUNtj

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
xnxx
antivm
false
c2_url
https://immortalshield.com/server
delay
3
download_payload
false
install
true
install_name
Wservices.exe
main_folder
Temp
pin_spread
false
sub_folder
\
usb_spread
false

Signatures

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

Processes:

a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe

Executes dropped EXE 1 IoCs

Processes:

Wservices.exe

pid process

1140 Wservices.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1140	Wservices.exe

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:

a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exeschtasks.exeWservices.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wservices.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

4224 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Wservices.exe

description pid process

Token: SeDebugPrivilege 1140 Wservices.exe
Token: SeDebugPrivilege 1140 Wservices.exe

pid	process
4224	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	1140	Wservices.exe
Token: SeDebugPrivilege	1140	Wservices.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe

description	pid	process	target process
PID 5028 wrote to memory of 4224	5028	a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe	schtasks.exe
PID 5028 wrote to memory of 4224	5028	a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe	schtasks.exe
PID 5028 wrote to memory of 4224	5028	a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe	schtasks.exe
PID 5028 wrote to memory of 1140	5028	a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe	Wservices.exe
PID 5028 wrote to memory of 1140	5028	a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe	Wservices.exe
PID 5028 wrote to memory of 1140	5028	a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe	Wservices.exe

C:\Users\Admin\AppData\Local\Temp\a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe
"C:\Users\Admin\AppData\Local\Temp\a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5028
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\Wservices.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4224
- C:\Users\Admin\AppData\Local\Temp\Wservices.exe
  "C:\Users\Admin\AppData\Local\Temp\Wservices.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1140

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Wservices.exe

Filesize
28KB

MD5
1d21e4dc9b9eb05b637330b6283bb885

SHA1
060b978da94f34f917610893fa4999f58661b962

SHA256
a0115b55dd3dc33d9fc987e078ca12e9f5cd76e812d1ca008a100a324023f138

SHA512
dd45658872f9f91f457c249bbe3a9cae7f0d2e24866c704d5571c5ad808de347a41088a180619c0ab25139f80a6f011fd1d1160a2727cc29a860ac17db5670a7

Download Submit
memory/1140-16-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/1140-17-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/1140-18-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/1140-19-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/5028-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/5028-1-0x0000000000F20000-0x0000000000F2C000-memory.dmp

Filesize
48KB

Download
memory/5028-2-0x0000000005920000-0x00000000059BC000-memory.dmp

Filesize
624KB

Download
memory/5028-3-0x00000000058A0000-0x0000000005906000-memory.dmp

Filesize
408KB

Download
memory/5028-4-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/5028-5-0x00000000065A0000-0x0000000006B44000-memory.dmp

Filesize
5.6MB

Download
memory/5028-15-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads