limerat | f1e57d1714f74c6939ee24bb348fa12e925ec7eb380d5a7d0f1d230effb742f4

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
07-04-2023 15:24

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General

Target

l1l1l.vbs
Size

129KB
MD5

c78f607c916f060d6ee3bf391e303acc
SHA1

1575998cda060d4a570ba258abc12044601da283
SHA256

f1e57d1714f74c6939ee24bb348fa12e925ec7eb380d5a7d0f1d230effb742f4
SHA512

cf26b8b381402622df420fa3881630661d08d76660d01be2d695af8ade568a6f5e3b365e4b17bffee5589d936eeaad3f7ebf413f4a2d810d976b66511548875b
SSDEEP

3072:OrDpGzBAtEbR1OsJlTtSjtH4UX9YWZiBh+exdMjd62dT:0

Score

10^/10

limerat rat

Malware Config

Signatures

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

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow	pid	Process
26	632	powershell.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

Processes:

WScript.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 1 IoCs

Processes:

WScript.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KBnSgEeuZWeY.lnk	WScript.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
632	powershell.exe
632	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	632	powershell.exe
Token: SeDebugPrivilege	632	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WScript.exe

description	pid	Process	procid_target
PID 1408 wrote to memory of 632	1408	WScript.exe	84
PID 1408 wrote to memory of 632	1408	WScript.exe	84

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\l1l1l.vbs"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit [Reflection.Assembly]::'Load'((Get-ItemProperty HKCU:\Software\tsQKDrCBEkat).evTHJP).'EntryPoint'.'Invoke'($Null,$Null)
  2⤵
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:632

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ztxiuw5a.dp0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/632-140-0x000001DEFFF60000-0x000001DEFFF82000-memory.dmp

Filesize
136KB

Download
memory/632-145-0x000001DF00000000-0x000001DF00044000-memory.dmp

Filesize
272KB

Download
memory/632-146-0x000001DE9A2D0000-0x000001DE9A2E0000-memory.dmp

Filesize
64KB

Download
memory/632-147-0x000001DE9A2D0000-0x000001DE9A2E0000-memory.dmp

Filesize
64KB

Download
memory/632-148-0x000001DE9A2D0000-0x000001DE9A2E0000-memory.dmp

Filesize
64KB

Download
memory/632-149-0x000001DE9A2D0000-0x000001DE9A2E0000-memory.dmp

Filesize
64KB

Download
memory/632-150-0x000001DE9A2D0000-0x000001DE9A2E0000-memory.dmp

Filesize
64KB

Download
memory/632-152-0x000001DF000D0000-0x000001DF00146000-memory.dmp

Filesize
472KB

Download