Analysis
- max time kernel
113s - max time network
119s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
14/06/2023, 09:20
Static task
static1
Behavioral task
behavioral1
Sample
solm.exe
Resource
win7-20230220-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
solm.exe
Resource
win10v2004-20230220-en
10 signatures
150 seconds
General
- Target solm.exe
- Size 853KB
- Sample230614-larecaff31
- SHA256 40b0a076e904042e87b4cfae93b7ae9ac00db794675cc4bfd2ca57fe55fb0949
- MD5 1e8f818a8c9b3b3c753da3d25e60ff54
- SHA1 1bfd4cb563dda00bcbdada885f40f456fd55ac5c
- SHA512 e0f80c1c18709595141c084aa124e7316fe3a0b02e718e67f7a6d56c14db2b74abf11692b253e211ec3cdc1faf2352b05cff3f30b355276e0946e6d4282802c1
- SSDEEP 24576:WsyU382vQERTp9LCAzxyVx19hqBjqEewXdb:vR3zg5q6Gdb
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
C2
-
https://api.telegram.org/bot5497972920:AAHqqS9EfkxnwYz3pQtCWef33URevfy5tRk/
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 aspnet_compiler.exe Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 aspnet_compiler.exe Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 aspnet_compiler.exe - Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 18 api.ipify.org 19 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2028 set thread context of 4460 2028 solm.exe 83 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4460 aspnet_compiler.exe 4460 aspnet_compiler.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2028 solm.exe Token: SeDebugPrivilege 4460 aspnet_compiler.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4460 aspnet_compiler.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2028 wrote to memory of 4460 2028 solm.exe 83 PID 2028 wrote to memory of 4460 2028 solm.exe 83 PID 2028 wrote to memory of 4460 2028 solm.exe 83 PID 2028 wrote to memory of 4460 2028 solm.exe 83 PID 2028 wrote to memory of 4460 2028 solm.exe 83 PID 2028 wrote to memory of 4460 2028 solm.exe 83 PID 2028 wrote to memory of 4460 2028 solm.exe 83 PID 2028 wrote to memory of 4460 2028 solm.exe 83 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 aspnet_compiler.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 aspnet_compiler.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\solm.exe"C:\Users\Admin\AppData\Local\Temp\solm.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4460
-