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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe

Executes dropped EXE 1 IoCs

Processes:

Wservices.exe

pid process

3084 Wservices.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs

Web Service
T1102

Processes:

flow ioc

82 0.tcp.ngrok.io
30 pastebin.com
31 pastebin.com
32 0.tcp.ngrok.io
60 0.tcp.ngrok.io
78 0.tcp.ngrok.io
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

flow	ioc
82	0.tcp.ngrok.io
30	pastebin.com
31	pastebin.com
32	0.tcp.ngrok.io
60	0.tcp.ngrok.io
78	0.tcp.ngrok.io

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

5100 schtasks.exe

pid	process
5100	schtasks.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

Wservices.exe

pid	process
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe
3084	Wservices.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Wservices.exe

description pid process

Token: SeDebugPrivilege 3084 Wservices.exe
Token: SeDebugPrivilege 3084 Wservices.exe

description	pid	process
Token: SeDebugPrivilege	3084	Wservices.exe
Token: SeDebugPrivilege	3084	Wservices.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe

description	pid	process	target process
PID 2316 wrote to memory of 5100	2316	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	schtasks.exe
PID 2316 wrote to memory of 5100	2316	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	schtasks.exe
PID 2316 wrote to memory of 5100	2316	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	schtasks.exe
PID 2316 wrote to memory of 3084	2316	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	Wservices.exe
PID 2316 wrote to memory of 3084	2316	a6d2258a956d6f8f3d2fd401fa7d519c1c97cd37ba971c4949b981ce221ce5f9.exe	Wservices.exe
PID 2316 wrote to memory of 3084	2316	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:2316
- 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:5100
- 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:3084

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/2316-0-0x0000000074C52000-0x0000000074C53000-memory.dmp

Filesize
4KB

Download
memory/2316-1-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/2316-2-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/2316-15-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3084-17-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3084-16-0x0000000074C50000-0x0000000075201000-memory.dmp

Filesize
5.7MB

Download
memory/3084-18-0x0000000074C50000-0x0000000075201000-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