Analysis
- max time kernel
132s - max time network
135s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
26/04/2023, 10:22
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
TT copy.exe
Resource
win7-20230220-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
TT copy.exe
Resource
win10v2004-20230220-en
9 signatures
150 seconds
General
- Target TT copy.exe
- Size 815KB
- Sample230426-md8cpsgf78
- SHA256 f8d54f533d483b1dd4bca77d1fdbbfe2165c2e63c06f9bb44c2b5c37d384b100
- MD5 2aff7ccea7bd228ce2b7d83b002f1b88
- SHA1 7ea7a785a7060cc93655d411c1e38dee4b93a22e
- SHA512 a9fa370ccf731cb9a412922c0a1f4337b3866bdb0023983476b8de2eee77a293598950027f1892a3c3852b7d79f0a9ad4205778c02bfbd2a27ea86cb3b7cd070
- SSDEEP 12288:C2Os3vTMwV6/+6xR8cikHDgfaIyi2SE4o3mD6OimO1YtR0uF3BkMhvMEXVxolEN6:7T76JHsd3oWfuKauFBkMpg
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.exceltruea.com
-
Port
587
-
Username
-
Password
bl es si ng 2 0 2 3
-
Email to
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-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.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 31 api.ipify.org 30 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4764 set thread context of 4488 4764 TT copy.exe 88 - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4764 TT copy.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4764 TT copy.exe Token: SeDebugPrivilege 4488 RegSvcs.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4764 wrote to memory of 4488 4764 TT copy.exe 88 PID 4764 wrote to memory of 4488 4764 TT copy.exe 88 PID 4764 wrote to memory of 4488 4764 TT copy.exe 88 PID 4764 wrote to memory of 4488 4764 TT copy.exe 88 PID 4764 wrote to memory of 4488 4764 TT copy.exe 88 PID 4764 wrote to memory of 4488 4764 TT copy.exe 88 PID 4764 wrote to memory of 4488 4764 TT copy.exe 88 PID 4764 wrote to memory of 4488 4764 TT copy.exe 88 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\TT copy.exe"C:\Users\Admin\AppData\Local\Temp\TT copy.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4488
-