Analysis
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max time kernel
141s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220310-en -
submitted
16-03-2022 06:08
Static task
static1
Behavioral task
behavioral1
Sample
4219085.exe
Resource
win7-20220310-en
Behavioral task
behavioral2
Sample
4219085.exe
Resource
win10v2004-20220310-en
General
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Target
4219085.exe
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Size
793KB
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MD5
0dacbb28cef175c1e01560fe18e3ee70
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SHA1
61b84862a70a43ef54ffe00b8c15cb192e9d79a8
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SHA256
9dbaa30f9fbccd0821c136557992a8dfa6e1c92af89aa637807f18db7a7e7f78
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SHA512
38abff21af4afd5939da8f7332169d665b47a57e0fd7357716d1ea942868e260878f51312ff22c216f071c5d5cdcb92ab80e6acc7c2df77e98300c62c4df29db
Malware Config
Extracted
Protocol: smtp- Host:
mail.escueladeseguridadmaritima.com - Port:
587 - Username:
[email protected] - Password:
JUsatelite2020
Signatures
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suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation 4219085.exe -
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-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4219085.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4219085.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4219085.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3128 set thread context of 4848 3128 4219085.exe 91 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2848 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 3128 4219085.exe 3128 4219085.exe 3128 4219085.exe 3128 4219085.exe 3128 4219085.exe 4848 4219085.exe 4848 4219085.exe 1312 powershell.exe 1312 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3128 4219085.exe Token: SeDebugPrivilege 4848 4219085.exe Token: SeDebugPrivilege 1312 powershell.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3128 wrote to memory of 1312 3128 4219085.exe 87 PID 3128 wrote to memory of 1312 3128 4219085.exe 87 PID 3128 wrote to memory of 1312 3128 4219085.exe 87 PID 3128 wrote to memory of 2848 3128 4219085.exe 89 PID 3128 wrote to memory of 2848 3128 4219085.exe 89 PID 3128 wrote to memory of 2848 3128 4219085.exe 89 PID 3128 wrote to memory of 4848 3128 4219085.exe 91 PID 3128 wrote to memory of 4848 3128 4219085.exe 91 PID 3128 wrote to memory of 4848 3128 4219085.exe 91 PID 3128 wrote to memory of 4848 3128 4219085.exe 91 PID 3128 wrote to memory of 4848 3128 4219085.exe 91 PID 3128 wrote to memory of 4848 3128 4219085.exe 91 PID 3128 wrote to memory of 4848 3128 4219085.exe 91 PID 3128 wrote to memory of 4848 3128 4219085.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4219085.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4219085.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4219085.exe"C:\Users\Admin\AppData\Local\Temp\4219085.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3128 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YuvPkgD.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1312
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YuvPkgD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp865F.tmp"2⤵
- Creates scheduled task(s)
PID:2848
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C:\Users\Admin\AppData\Local\Temp\4219085.exe"C:\Users\Admin\AppData\Local\Temp\4219085.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4848
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