Analysis
- max time kernel
91s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
17/11/2022, 09:20
Static task
static1
Behavioral task
behavioral1
Sample
bbc011ee70c273ddc1c43019979e8446.exe
Resource
win7-20221111-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
bbc011ee70c273ddc1c43019979e8446.exe
Resource
win10v2004-20221111-en
9 signatures
150 seconds
General
- Target bbc011ee70c273ddc1c43019979e8446.exe
- Size 695KB
- Sample221117-larecaea76
- SHA256 0fd42f3888582345dc0cd69736a925162733b9cb543f1ab1ca55fb80c2eecb8b
- MD5 bbc011ee70c273ddc1c43019979e8446
- SHA1 44cd083830f8b5c6d0e05acc31cb66536c4049ac
- SHA512 ba27b9ac505b4d7be1d441e560ce217f95ea377b6576970b2cf4df0841de0c355ccaa44eb52d85ba413bcc6120f331d77c0f3fe4ff3e079548a4d3a4795a447f
- SSDEEP 12288:zjcWOG1dk69pfXe4GdcrBN538Vfu8qpmJ1BMwkz0ogLXYbipSNRyYMD53IXB47Xk:v1dk69pfualvSypujMwINiX6ipkB47U
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
host39.registrar-servers.com
-
Port
587
-
Username
-
Password
payment 12345
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-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.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 27 api.ipify.org 26 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4708 set thread context of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 - Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 4708 bbc011ee70c273ddc1c43019979e8446.exe 4708 bbc011ee70c273ddc1c43019979e8446.exe 1404 MSBuild.exe 1404 MSBuild.exe 1404 MSBuild.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4708 bbc011ee70c273ddc1c43019979e8446.exe Token: SeDebugPrivilege 1404 MSBuild.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4708 wrote to memory of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 PID 4708 wrote to memory of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 PID 4708 wrote to memory of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 PID 4708 wrote to memory of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 PID 4708 wrote to memory of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 PID 4708 wrote to memory of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 PID 4708 wrote to memory of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 PID 4708 wrote to memory of 1404 4708 bbc011ee70c273ddc1c43019979e8446.exe 84 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\bbc011ee70c273ddc1c43019979e8446.exe"C:\Users\Admin\AppData\Local\Temp\bbc011ee70c273ddc1c43019979e8446.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4708 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1404
-