Malware Analysis Report

2024-10-23 21:21

Sample ID 240828-ybsp1stgrm
Target IEXPLORE.EXE.exe
SHA256 491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e
Tags
revengerat marzo26 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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

491f7eb35995a90505019c995e9bcd29d75167f8770e74747893807f420b107e

Threat Level: Known bad

The file IEXPLORE.EXE.exe was found to be: Known bad.

Malicious Activity Summary

revengerat marzo26 discovery trojan

RevengeRAT

Drops startup file

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-28 19:37

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-28 19:37

Reported

2024-08-28 19:39

Platform

win7-20240708-en

Max time kernel

145s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe"

Signatures

RevengeRAT

trojan revengerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AudioHandlers.url C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1864 set thread context of 772 N/A C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

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\IEXPLORE.EXE.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe

"C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp

Files

memory/1864-0-0x0000000000230000-0x0000000000231000-memory.dmp

memory/772-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/772-7-0x0000000000400000-0x0000000000408000-memory.dmp

memory/772-8-0x0000000000400000-0x0000000000408000-memory.dmp

memory/772-2-0x0000000000400000-0x0000000000408000-memory.dmp

memory/772-1-0x0000000000400000-0x0000000000408000-memory.dmp

memory/772-9-0x00000000742A2000-0x00000000742A4000-memory.dmp

memory/772-10-0x00000000742A2000-0x00000000742A4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-28 19:37

Reported

2024-08-28 19:39

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe"

Signatures

RevengeRAT

trojan revengerat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AudioHandlers.url C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4988 set thread context of 4408 N/A C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

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\IEXPLORE.EXE.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe

"C:\Users\Admin\AppData\Local\Temp\IEXPLORE.EXE.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4120,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4020 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp
US 8.8.8.8:53 marzorevenger.duckdns.org udp
CO 186.85.86.137:4230 marzorevenger.duckdns.org tcp

Files

memory/4988-0-0x00000000012B0000-0x00000000012B1000-memory.dmp

memory/4408-1-0x0000000000400000-0x0000000000408000-memory.dmp

memory/4408-5-0x0000000073A72000-0x0000000073A73000-memory.dmp

memory/4408-6-0x0000000073A70000-0x0000000074021000-memory.dmp

memory/4408-7-0x0000000073A70000-0x0000000074021000-memory.dmp

memory/4408-8-0x0000000073A72000-0x0000000073A73000-memory.dmp

memory/4408-9-0x0000000073A70000-0x0000000074021000-memory.dmp