Malware Analysis Report

2024-10-19 08:43

Sample ID 240727-znkqls1fnf
Target Client.exe
SHA256 cb9bb33d33ae493a7616a62cae19fb7c127c596a834543e78735e894d4225f42
Tags
guest revengerat discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

cb9bb33d33ae493a7616a62cae19fb7c127c596a834543e78735e894d4225f42

Threat Level: Known bad

The file Client.exe was found to be: Known bad.

Malicious Activity Summary

guest revengerat discovery trojan

Revengerat family

RevengeRAT

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-27 20:51

Signatures

Revengerat family

revengerat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-27 20:51

Reported

2024-07-27 20:52

Platform

win11-20240709-en

Max time kernel

35s

Max time network

38s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Client.exe"

Signatures

RevengeRAT

trojan revengerat

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 0.tcp.eu.ngrok.io N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5104 set thread context of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 set thread context of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.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\v2.0.50727\RegSvcs.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Client.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5104 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 5104 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 5104 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 5104 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 5104 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 5104 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 5104 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 5104 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\Client.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 wrote to memory of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 wrote to memory of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 wrote to memory of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 wrote to memory of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 wrote to memory of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 wrote to memory of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 wrote to memory of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
PID 1956 wrote to memory of 3676 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Client.exe

"C:\Users\Admin\AppData\Local\Temp\Client.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
DE 3.125.102.39:8848 0.tcp.eu.ngrok.io tcp

Files

memory/5104-0-0x00007FFF9A465000-0x00007FFF9A466000-memory.dmp

memory/5104-1-0x00007FFF9A1B0000-0x00007FFF9AB51000-memory.dmp

memory/5104-2-0x000000001C3A0000-0x000000001C86E000-memory.dmp

memory/5104-3-0x00007FFF9A1B0000-0x00007FFF9AB51000-memory.dmp

memory/5104-4-0x000000001BDE0000-0x000000001BE86000-memory.dmp

memory/5104-5-0x000000001C940000-0x000000001C9A2000-memory.dmp

memory/1956-7-0x0000000000400000-0x0000000000422000-memory.dmp

memory/5104-8-0x00007FFF9A1B0000-0x00007FFF9AB51000-memory.dmp

memory/1956-9-0x0000000074691000-0x0000000074692000-memory.dmp

memory/1956-10-0x0000000074690000-0x0000000074C41000-memory.dmp

memory/1956-11-0x0000000074690000-0x0000000074C41000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\vwfRtNH.txt

MD5 bfbee1ccbe6981fafb1c7bff99680882
SHA1 3866c915b8a7e0592f8728c89faf6bb4d5ecf002
SHA256 74976c31c2c46d066f3d9a70fc73b3a7dd541d5a889a6644a59f09b53960a235
SHA512 6bb98708f97b426a6ef445681a9169671d084f1a876e6ff07b8c595add8f996509d5e003a04b1d58ca10332285df2686bec4e6b470f6b3f8a19e15be256dbd2e

memory/3676-12-0x0000000000400000-0x000000000040C000-memory.dmp

memory/3676-14-0x0000000074690000-0x0000000074C41000-memory.dmp

memory/3676-15-0x0000000074690000-0x0000000074C41000-memory.dmp

memory/3676-17-0x0000000074690000-0x0000000074C41000-memory.dmp

memory/3676-18-0x0000000074690000-0x0000000074C41000-memory.dmp

memory/1956-19-0x0000000074690000-0x0000000074C41000-memory.dmp