limerat | a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033

General

Target
a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe
Size 89KB
Sample220503-sd6f1accdp
SHA256 a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033
MD5 dd50f77e467dd8f8b111c09c82b57288
SHA1 9f03fa157e66ad40dddfe3e2f7552b103799b570
SHA512 c3807e1a29f819e8897d5327d3c2ca4121776e35986ffdcee900d1ef741709eb9cff426bc4627b712ee8a300770c31a155cfa346a8b21dcba7262b4c51365884
MD5 SHA1 SHA512

Score

10^/10

limerat rat

Malware Config

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat

Executes dropped EXE 1 IoCs

pid	Process
3396	MscServicesHost.exe

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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2248	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3396	MscServicesHost.exe
Token: SeDebugPrivilege	3396	MscServicesHost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3988 wrote to memory of 2248	3988	a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe	88
PID 3988 wrote to memory of 2248	3988	a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe	88
PID 3988 wrote to memory of 2248	3988	a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe	88
PID 3988 wrote to memory of 3396	3988	a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe	93
PID 3988 wrote to memory of 3396	3988	a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe	93
PID 3988 wrote to memory of 3396	3988	a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe	93

C:\Users\Admin\AppData\Local\Temp\a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe
"C:\Users\Admin\AppData\Local\Temp\a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3988
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\MscServicesHost\MscServicesHost.exe'"
  2⤵
  - Creates scheduled task(s)
  PID:2248
- C:\Users\Admin\MscServicesHost\MscServicesHost.exe
  "C:\Users\Admin\MscServicesHost\MscServicesHost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

MscServicesHost.exe

Path C:\Users\Admin\MscServicesHost\MscServicesHost.exe
Size 89KB
SHA256 a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033
MD5 dd50f77e467dd8f8b111c09c82b57288
SHA1 9f03fa157e66ad40dddfe3e2f7552b103799b570
SHA512 c3807e1a29f819e8897d5327d3c2ca4121776e35986ffdcee900d1ef741709eb9cff426bc4627b712ee8a300770c31a155cfa346a8b21dcba7262b4c51365884
SSDEEP 1536:iOKIUtDgS6PqMtSKBHUocQ8LyWLP6i1lrLYqr2j+WWLWFGOuv3WWObXrdULfWrjl:ZKIUtDgS6PlB0ov8L4Oc6vp0m7R2cM8
MD5 SHA1 SHA512 SSDEEP

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MscServicesHost.exe

Path C:\Users\Admin\MscServicesHost\MscServicesHost.exe
Size 89KB
SHA256 a1c846c5e482d43cf380232320ed0741360189040cc5167903f48580166a2033
MD5 dd50f77e467dd8f8b111c09c82b57288
SHA1 9f03fa157e66ad40dddfe3e2f7552b103799b570
SHA512 c3807e1a29f819e8897d5327d3c2ca4121776e35986ffdcee900d1ef741709eb9cff426bc4627b712ee8a300770c31a155cfa346a8b21dcba7262b4c51365884
SSDEEP 1536:iOKIUtDgS6PqMtSKBHUocQ8LyWLP6i1lrLYqr2j+WWLWFGOuv3WWObXrdULfWrjl:ZKIUtDgS6PlB0ov8L4Oc6vp0m7R2cM8
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/3988-130-0x0000000000550000-0x000000000056A000-memory.dmp

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memory/3988-131-0x0000000004F20000-0x0000000004FBC000-memory.dmp

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memory/3988-132-0x0000000004E90000-0x0000000004EF6000-memory.dmp

Download

memory/3988-133-0x0000000005B80000-0x0000000006124000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads