Malware Analysis Report

2024-11-16 13:10

Sample ID 220527-3vn86ahcf7
Target 03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4
SHA256 03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4
Tags
limerat rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4

Threat Level: Known bad

The file 03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4 was found to be: Known bad.

Malicious Activity Summary

limerat rat

LimeRAT

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-27 23:50

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-27 23:50

Reported

2022-05-28 02:01

Platform

win7-20220414-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe"

Signatures

LimeRAT

rat limerat

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1672 set thread context of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1672 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe

"C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 104.20.68.143:443 pastebin.com tcp

Files

memory/1672-54-0x00000000002B0000-0x0000000000344000-memory.dmp

memory/1672-55-0x0000000075B61000-0x0000000075B63000-memory.dmp

memory/1672-56-0x0000000072900000-0x0000000073C8F000-memory.dmp

memory/1672-57-0x0000000001E90000-0x0000000001EA8000-memory.dmp

memory/1672-58-0x0000000071EF0000-0x0000000072900000-memory.dmp

memory/1672-59-0x0000000071710000-0x0000000071EF0000-memory.dmp

memory/1672-60-0x0000000074680000-0x0000000074851000-memory.dmp

memory/1672-61-0x00000000744E0000-0x0000000074674000-memory.dmp

memory/1672-62-0x00000000709F0000-0x000000007170D000-memory.dmp

memory/1672-63-0x00000000743E0000-0x00000000744DC000-memory.dmp

memory/1672-64-0x00000000702B0000-0x00000000709EE000-memory.dmp

memory/1672-65-0x0000000074200000-0x00000000742C9000-memory.dmp

memory/1672-66-0x0000000072900000-0x0000000073C8F000-memory.dmp

memory/1672-67-0x0000000071EF0000-0x0000000072900000-memory.dmp

memory/1236-69-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1236-68-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1236-71-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1236-72-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1236-73-0x0000000000408C1E-mapping.dmp

memory/1236-75-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1236-77-0x0000000000400000-0x000000000040C000-memory.dmp

memory/1672-79-0x0000000072900000-0x0000000073C8F000-memory.dmp

memory/1672-80-0x0000000071EF0000-0x0000000072900000-memory.dmp

memory/1672-81-0x0000000074680000-0x0000000074851000-memory.dmp

memory/1672-82-0x00000000744E0000-0x0000000074674000-memory.dmp

memory/1672-83-0x00000000709F0000-0x000000007170D000-memory.dmp

memory/1236-84-0x0000000072900000-0x0000000073C8F000-memory.dmp

memory/1236-85-0x0000000071EF0000-0x0000000072900000-memory.dmp

memory/1236-86-0x0000000071710000-0x0000000071EF0000-memory.dmp

memory/1236-87-0x0000000074680000-0x0000000074851000-memory.dmp

memory/1236-88-0x0000000074550000-0x0000000074673000-memory.dmp

memory/1236-89-0x0000000074180000-0x0000000074314000-memory.dmp

memory/1236-90-0x000000006F2F0000-0x000000007000D000-memory.dmp

memory/1236-91-0x0000000073DE0000-0x0000000073EDC000-memory.dmp

memory/1236-92-0x0000000070FD0000-0x000000007170E000-memory.dmp

memory/1236-93-0x0000000072900000-0x0000000073C8F000-memory.dmp

memory/1236-94-0x0000000071EF0000-0x0000000072900000-memory.dmp

memory/1236-95-0x0000000074680000-0x0000000074851000-memory.dmp

memory/1236-96-0x0000000074550000-0x0000000074673000-memory.dmp

memory/1236-97-0x000000006F2F0000-0x000000007000D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-27 23:50

Reported

2022-05-28 02:02

Platform

win10v2004-20220414-en

Max time kernel

170s

Max time network

196s

Command Line

"C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe"

Signatures

LimeRAT

rat limerat

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1720 set thread context of 4860 N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe

"C:\Users\Admin\AppData\Local\Temp\03a3bd2bd48400c35d8b458d9045cd113bbda03d9bd1a41fecae8177ee71aaf4.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
NL 104.97.14.81:80 tcp
IE 20.54.110.249:443 tcp
NL 104.110.191.133:80 tcp
US 52.152.108.96:443 tcp
US 52.168.117.170:443 tcp
FR 2.18.109.224:443 tcp
US 8.8.8.8:53 96.108.152.52.in-addr.arpa udp
US 204.79.197.203:80 tcp
US 8.8.8.8:53 9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa udp
US 8.8.8.8:53 storesdk.dsx.mp.microsoft.com udp
FR 2.18.109.224:443 storesdk.dsx.mp.microsoft.com tcp
US 8.8.8.8:53 pastebin.com udp
US 172.67.34.170:443 pastebin.com tcp
FR 2.18.109.224:443 storesdk.dsx.mp.microsoft.com tcp

Files

memory/1720-130-0x0000000000530000-0x00000000005C4000-memory.dmp

memory/1720-131-0x0000000004F70000-0x000000000500C000-memory.dmp

memory/1720-132-0x00000000055C0000-0x0000000005B64000-memory.dmp

memory/1720-133-0x00000000050B0000-0x0000000005142000-memory.dmp

memory/1720-134-0x0000000005010000-0x000000000501A000-memory.dmp

memory/1720-135-0x0000000005240000-0x0000000005296000-memory.dmp

memory/4860-136-0x0000000000000000-mapping.dmp

memory/4860-137-0x0000000000400000-0x000000000040C000-memory.dmp

memory/4860-138-0x0000000005140000-0x00000000051A6000-memory.dmp