Analysis
- max time kernel
137s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
02/11/2022, 13:49
Static task
static1
Behavioral task
behavioral1
Sample
blessed.exe
Resource
win7-20220812-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
blessed.exe
Resource
win10v2004-20220812-en
9 signatures
150 seconds
General
- Target blessed.exe
- Size 671KB
- Sample221102-q4p6lahcc2
- SHA256 d8eb1f317af04fac903ebe9c922d5ebfe86b21fda22d4cb3c4362002d1f55f69
- MD5 99adf97b77d6b1d9fb811624c54a9b23
- SHA1 d905c6f6ae4baabc5576436e58124f7b788a6c08
- SHA512 1fb150da73444a7245f4360f26271603a6a430c39b37aff00ccef8ace9f3102aa66259e92423c379941795ab2e0c59af411a20b87eda2febb686fccc3751cc5e
- SSDEEP 12288:KQAgHtDg5xE1eWAqQB4gQ3e5zejd0WxJrySSEDpzObkHkRWdSSohJUB9PVfd/Nhp:14WgQMep0krySWwkQSDodfd2i
- MD5 SHA1 SHA512 SSDEEP
Malware Config
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-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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 33 api.ipify.org 34 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4588 set thread context of 4820 4588 blessed.exe 85 - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4588 blessed.exe 4820 RegSvcs.exe 4820 RegSvcs.exe 4820 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4588 blessed.exe Token: SeDebugPrivilege 4820 RegSvcs.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4588 wrote to memory of 4820 4588 blessed.exe 85 PID 4588 wrote to memory of 4820 4588 blessed.exe 85 PID 4588 wrote to memory of 4820 4588 blessed.exe 85 PID 4588 wrote to memory of 4820 4588 blessed.exe 85 PID 4588 wrote to memory of 4820 4588 blessed.exe 85 PID 4588 wrote to memory of 4820 4588 blessed.exe 85 PID 4588 wrote to memory of 4820 4588 blessed.exe 85 PID 4588 wrote to memory of 4820 4588 blessed.exe 85 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\blessed.exe"C:\Users\Admin\AppData\Local\Temp\blessed.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4588 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4820
-