Malware Analysis Report

2025-08-10 13:11

Sample ID 241016-cyewsasdnr
Target 72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe
SHA256 72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e
Tags
collection discovery
score
7/10

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
7/10

SHA256

72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e

Threat Level: Shows suspicious behavior

The file 72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

collection discovery

Drops startup file

Executes dropped EXE

Loads dropped DLL

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

AutoIT Executable

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Program crash

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

outlook_office_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-16 02:28

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

2024-10-16 02:28

Reported

2024-10-16 02:31

Platform

win7-20240903-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Lymnaeidae.vbs C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2796 set thread context of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Enumerates physical storage devices

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\contrapose\Lymnaeidae.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2968 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe
PID 2968 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe
PID 2968 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe
PID 2968 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe
PID 2796 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2796 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2796 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2796 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2796 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2796 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2796 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2796 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe

"C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe"

C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe

"C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe"

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

"C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
BR 132.226.247.73:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp

Files

memory/2968-2-0x0000000003CC0000-0x00000000040C0000-memory.dmp

\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe

MD5 55aebe7c9491e315b5cf0b1754cd970a
SHA1 0b7b1c687363a42a5a628c6fac6dc70304d32a0f
SHA256 72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e
SHA512 cfe63311113b1464549db347fead8d383cfd112d1fd20ce07ff2839408b5e1de6f109bde959b8fffa80a4e1f5a4f0d5764ce210bd23b1706062d565334068d4b

C:\Users\Admin\AppData\Local\Temp\endochylous

MD5 ce70b530bf5a9e09c5060d0668d21bde
SHA1 9aa5fde1392b803cec335710828d92326d092caf
SHA256 308e5b41746f297980dd8f0a6f8fbb68e00ea26453b147ac135a645741d07038
SHA512 756e9604ff5b4360221dfcb2bc80c60f67e2504d00256a32207e6500c8b466e9c5e09558a96aeac1d59c23be6883e48419e149c93204d40fac85d3a0c73e3147

memory/2796-12-0x0000000004050000-0x0000000004450000-memory.dmp

memory/2780-14-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2780-16-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2780-17-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2780-18-0x0000000073E6E000-0x0000000073E6F000-memory.dmp

memory/2780-19-0x00000000003C0000-0x00000000003F0000-memory.dmp

memory/2780-20-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/2780-22-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/2780-21-0x0000000000610000-0x000000000063E000-memory.dmp

memory/2780-23-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/2780-25-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-83-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-81-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-79-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-77-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-75-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-73-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-71-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-69-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-67-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-65-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-63-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-61-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-59-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-57-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-55-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-53-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-51-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-49-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-47-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-45-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-43-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-41-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-39-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-37-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-35-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-33-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-31-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-29-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-27-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-24-0x0000000000610000-0x0000000000638000-memory.dmp

memory/2780-472-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/2780-473-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2780-474-0x0000000073E6E000-0x0000000073E6F000-memory.dmp

memory/2780-475-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/2780-476-0x0000000073E60000-0x000000007454E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 02:28

Reported

2024-10-16 02:31

Platform

win10v2004-20241007-en

Max time kernel

140s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Lymnaeidae.vbs C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe N/A

AutoIT Executable

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

Enumerates physical storage devices

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\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe

"C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe"

C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe

"C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe"

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

"C:\Users\Admin\AppData\Local\Temp\72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4900 -ip 4900

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4900 -s 740

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 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 104.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp

Files

memory/3068-2-0x0000000003EA0000-0x00000000042A0000-memory.dmp

C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe

MD5 55aebe7c9491e315b5cf0b1754cd970a
SHA1 0b7b1c687363a42a5a628c6fac6dc70304d32a0f
SHA256 72a8825bde9fb1600cb085e11d2b59a2b11e3c027c301fb789791e2552bda42e
SHA512 cfe63311113b1464549db347fead8d383cfd112d1fd20ce07ff2839408b5e1de6f109bde959b8fffa80a4e1f5a4f0d5764ce210bd23b1706062d565334068d4b

C:\Users\Admin\AppData\Local\Temp\endochylous

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/4900-10-0x0000000003EE0000-0x00000000042E0000-memory.dmp