Malware Analysis Report

2025-01-02 06:55

Sample ID 241125-1wb9wavpgp
Target 11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9
SHA256 11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9
Tags
asyncrat venomrat default discovery rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9

Threat Level: Known bad

The file 11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9 was found to be: Known bad.

Malicious Activity Summary

asyncrat venomrat default discovery rat

AsyncRat

VenomRAT

Venomrat family

Asyncrat family

Loads dropped DLL

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-25 21:59

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-25 21:59

Reported

2024-11-25 22:02

Platform

win10v2004-20241007-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe"

Signatures

AsyncRat

rat asyncrat

Asyncrat family

asyncrat

VenomRAT

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Venomrat family

venomrat

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3712 set thread context of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3712 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe

"C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
RU 212.15.49.155:4449 tcp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
RU 212.15.49.155:4449 tcp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
RU 212.15.49.155:4449 tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
RU 212.15.49.155:4449 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
RU 212.15.49.155:4449 tcp
RU 212.15.49.155:4449 tcp
RU 212.15.49.155:4449 tcp

Files

memory/3712-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

memory/3712-1-0x0000000000A90000-0x0000000000B16000-memory.dmp

memory/3712-2-0x0000000005400000-0x0000000005406000-memory.dmp

memory/3712-3-0x0000000009F20000-0x000000000A44C000-memory.dmp

memory/3712-4-0x00000000748C0000-0x0000000075070000-memory.dmp

C:\Users\Admin\AppData\Roaming\gdi32.dll

MD5 8d662564d514751028c65d96c696271f
SHA1 8e27943b7b901a808d39a7ee6977e1d3769a15fb
SHA256 86af5d6ee9d824ec2dfa73f44b9ae285d33e9748a8b6dbd4333d1ae06cf6f72b
SHA512 0a5460bbe7f43db560a08e508381613098a28de208a9d85c9c41fffa62b1e0299389a575dfa2b78767d3dd0fc73f0c88677ca32d7fe4e87698def1386cf35bef

memory/916-11-0x0000000000EF0000-0x0000000000F2B000-memory.dmp

memory/3712-12-0x0000000005CD0000-0x0000000006274000-memory.dmp

memory/3712-13-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/916-14-0x0000000000EF0000-0x0000000000F1C000-memory.dmp

memory/916-16-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/3712-15-0x0000000005820000-0x00000000058B2000-memory.dmp

memory/916-18-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/3712-19-0x00000000059D0000-0x00000000059DA000-memory.dmp

memory/3712-21-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/916-22-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/916-23-0x00000000748C0000-0x0000000075070000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-25 21:59

Reported

2024-11-25 22:02

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe"

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe

"C:\Users\Admin\AppData\Local\Temp\11fbd295494309d56d775a11f805544737ce71d058a716194c0fd5b800cdc6d9.exe"

Network

N/A

Files

memory/2204-0-0x00000000747BE000-0x00000000747BF000-memory.dmp

memory/2204-1-0x0000000000130000-0x00000000001B6000-memory.dmp

memory/2204-2-0x0000000000310000-0x0000000000316000-memory.dmp

memory/2204-3-0x00000000747B0000-0x0000000074E9E000-memory.dmp

\Users\Admin\AppData\Roaming\gdi32.dll

MD5 8d662564d514751028c65d96c696271f
SHA1 8e27943b7b901a808d39a7ee6977e1d3769a15fb
SHA256 86af5d6ee9d824ec2dfa73f44b9ae285d33e9748a8b6dbd4333d1ae06cf6f72b
SHA512 0a5460bbe7f43db560a08e508381613098a28de208a9d85c9c41fffa62b1e0299389a575dfa2b78767d3dd0fc73f0c88677ca32d7fe4e87698def1386cf35bef

memory/2204-8-0x00000000747B0000-0x0000000074E9E000-memory.dmp