limerat | e53ec50faafe4ead0811effbfc09951d886e42cb0725edade77f8487fe8e2b55

General

Target

a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe
Size

254KB
MD5

ecc1fb4b0c9b8d5492385210ede743e0
SHA1

4eb78421227c33aaba01c70158906b3de99b0e81
SHA256

a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9
SHA512

3eb9d2f2f9481dad5f4783a23e67b7dea047a2f460e4e880280c9f3b6d9851eac21ff14452ada7774d44e6dea80e1b7e8fdd351ab7da128cfab123e7c9ab4400
SSDEEP

768:lMf0qZPxBXr178NYvGDdHIpT9SBG0B9FN48jt2VHtecomotDhI7xc5DzSEo6LFcU:IY664EB

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/sf0NTYv4
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

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:

a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe

Executes dropped EXE 1 IoCs

Processes:

Wservices.exe

pid process

1868 Wservices.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service
T1102

Processes:

flow ioc

33 0.tcp.ngrok.io
67 0.tcp.ngrok.io
73 0.tcp.ngrok.io
29 pastebin.com
30 pastebin.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1868	Wservices.exe

flow	ioc
33	0.tcp.ngrok.io
67	0.tcp.ngrok.io
73	0.tcp.ngrok.io
29	pastebin.com
30	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:

a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exeschtasks.exeWservices.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.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

1648 schtasks.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

Wservices.exe

pid process

1868 Wservices.exe
1868 Wservices.exe
1868 Wservices.exe
1868 Wservices.exe
1868 Wservices.exe
1868 Wservices.exe
1868 Wservices.exe
1868 Wservices.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Wservices.exe

description pid process

Token: SeDebugPrivilege 1868 Wservices.exe
Token: SeDebugPrivilege 1868 Wservices.exe

pid	process
1648	schtasks.exe

pid	process
1868	Wservices.exe
1868	Wservices.exe
1868	Wservices.exe
1868	Wservices.exe
1868	Wservices.exe
1868	Wservices.exe
1868	Wservices.exe
1868	Wservices.exe

description	pid	process
Token: SeDebugPrivilege	1868	Wservices.exe
Token: SeDebugPrivilege	1868	Wservices.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe

description	pid	process	target process
PID 1048 wrote to memory of 1648	1048	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	schtasks.exe
PID 1048 wrote to memory of 1648	1048	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	schtasks.exe
PID 1048 wrote to memory of 1648	1048	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	schtasks.exe
PID 1048 wrote to memory of 1868	1048	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	Wservices.exe
PID 1048 wrote to memory of 1868	1048	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	Wservices.exe
PID 1048 wrote to memory of 1868	1048	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	Wservices.exe

C:\Users\Admin\AppData\Local\Temp\a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe
"C:\Users\Admin\AppData\Local\Temp\a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\Wservices.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1648
- C:\Users\Admin\AppData\Roaming\Wservices.exe
  "C:\Users\Admin\AppData\Roaming\Wservices.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1868

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\Wservices.exe

Filesize
254KB

MD5
ecc1fb4b0c9b8d5492385210ede743e0

SHA1
4eb78421227c33aaba01c70158906b3de99b0e81

SHA256
a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9

SHA512
3eb9d2f2f9481dad5f4783a23e67b7dea047a2f460e4e880280c9f3b6d9851eac21ff14452ada7774d44e6dea80e1b7e8fdd351ab7da128cfab123e7c9ab4400

Download Submit
memory/1048-0-0x0000000074F42000-0x0000000074F43000-memory.dmp

Filesize
4KB

Download
memory/1048-1-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/1048-2-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/1048-15-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/1868-16-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/1868-17-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/1868-18-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads