Analysis
- max time kernel
60s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
18/04/2023, 16:22
Static task
static1
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 709KB
- Sample230418-tt8fzaed4x
- SHA256 02e5efb34c7a49fdfa2aa6e1399060c94f2de759c15040aaea1499062a3f9901
- MD5 8b5ce13d92cabc133842ae8c3e6292c5
- SHA1 66888518643c094d1ee4ab819b54579adba7541e
- SHA512 b664cb466b806a4277c5ffb5b93acb6d794e25f351a6cfada0c4efafb0adc5493404ab19dd5522e005ef7011a61f5f0e65ac0e70023380d23995836acd5e110f
- SSDEEP 12288:hEiJO0BLWwL/GQ6uldOxKKRKIVObwy7N+17lzDigH3C3bBKdUbHZU:3I04YGulQv/V+zN+FlzDXQKd6U
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
C2
-
https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/
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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 21 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1288 set thread context of 532 1288 TT COPY.exe 88 - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1288 TT COPY.exe 1288 TT COPY.exe 1288 TT COPY.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1288 TT COPY.exe Token: SeDebugPrivilege 532 MSBuild.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1288 wrote to memory of 5080 1288 TT COPY.exe 87 PID 1288 wrote to memory of 5080 1288 TT COPY.exe 87 PID 1288 wrote to memory of 5080 1288 TT COPY.exe 87 PID 1288 wrote to memory of 532 1288 TT COPY.exe 88 PID 1288 wrote to memory of 532 1288 TT COPY.exe 88 PID 1288 wrote to memory of 532 1288 TT COPY.exe 88 PID 1288 wrote to memory of 532 1288 TT COPY.exe 88 PID 1288 wrote to memory of 532 1288 TT COPY.exe 88 PID 1288 wrote to memory of 532 1288 TT COPY.exe 88 PID 1288 wrote to memory of 532 1288 TT COPY.exe 88 PID 1288 wrote to memory of 532 1288 TT COPY.exe 88 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.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:1288 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵PID:5080
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:532
-