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Analysis
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max time kernel
142s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
09/10/2023, 12:22
Static task
static1
Behavioral task
behavioral1
Sample
DOK. DOSTAWY___html.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
DOK. DOSTAWY___html.exe
Resource
win10v2004-20230915-en
General
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Target
DOK. DOSTAWY___html.exe
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Size
649KB
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MD5
c7c04fc9edf50fdf4ad61e9f81dd521e
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SHA1
1056765ca4b59ab5e757446b1416e90641a6d50a
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SHA256
5b18bebd3508cb5df709a42079c7f44eb00b14e35173dc56d2aaa11f2fd52afc
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SHA512
8f0e8ddb9b017f166269aa2e241896992bdd0dc00725e97ea531debb4d4ec2160c1047f0c6db671a812719e1a113d247abe0002b05846df599c6ef9525fffc30
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SSDEEP
12288:kO7s9/ZdrAMoL+tqKfQuWB6knomVzLMhiDDJ1Iic+:t7s9/RAqQuWsc1XMwQic+
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.reneacruiseshalong.com - Port:
587 - Username:
[email protected] - Password:
KeToanRenea123$$$ - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOK. DOSTAWY___html.exe Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOK. DOSTAWY___html.exe Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOK. DOSTAWY___html.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 55 api.ipify.org 56 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4176 set thread context of 4544 4176 DOK. DOSTAWY___html.exe 99 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4176 DOK. DOSTAWY___html.exe 4176 DOK. DOSTAWY___html.exe 4544 DOK. DOSTAWY___html.exe 4544 DOK. DOSTAWY___html.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4176 DOK. DOSTAWY___html.exe Token: SeDebugPrivilege 4544 DOK. DOSTAWY___html.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4176 wrote to memory of 4544 4176 DOK. DOSTAWY___html.exe 99 PID 4176 wrote to memory of 4544 4176 DOK. DOSTAWY___html.exe 99 PID 4176 wrote to memory of 4544 4176 DOK. DOSTAWY___html.exe 99 PID 4176 wrote to memory of 4544 4176 DOK. DOSTAWY___html.exe 99 PID 4176 wrote to memory of 4544 4176 DOK. DOSTAWY___html.exe 99 PID 4176 wrote to memory of 4544 4176 DOK. DOSTAWY___html.exe 99 PID 4176 wrote to memory of 4544 4176 DOK. DOSTAWY___html.exe 99 PID 4176 wrote to memory of 4544 4176 DOK. DOSTAWY___html.exe 99 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOK. DOSTAWY___html.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOK. DOSTAWY___html.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\DOK. DOSTAWY___html.exe"C:\Users\Admin\AppData\Local\Temp\DOK. DOSTAWY___html.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Users\Admin\AppData\Local\Temp\DOK. DOSTAWY___html.exe"C:\Users\Admin\AppData\Local\Temp\DOK. DOSTAWY___html.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4544
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