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.
Processes:
4219085.exedescription 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
Processes:
4219085.exedescription 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
Processes:
4219085.exedescription pid process target process PID 3128 set thread context of 4848 3128 4219085.exe 4219085.exe -
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.
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Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
4219085.exe4219085.exepowershell.exepid 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
Processes:
4219085.exe4219085.exepowershell.exedescription pid process Token: SeDebugPrivilege 3128 4219085.exe Token: SeDebugPrivilege 4848 4219085.exe Token: SeDebugPrivilege 1312 powershell.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
4219085.exedescription pid process target process PID 3128 wrote to memory of 1312 3128 4219085.exe powershell.exe PID 3128 wrote to memory of 1312 3128 4219085.exe powershell.exe PID 3128 wrote to memory of 1312 3128 4219085.exe powershell.exe PID 3128 wrote to memory of 2848 3128 4219085.exe schtasks.exe PID 3128 wrote to memory of 2848 3128 4219085.exe schtasks.exe PID 3128 wrote to memory of 2848 3128 4219085.exe schtasks.exe PID 3128 wrote to memory of 4848 3128 4219085.exe 4219085.exe PID 3128 wrote to memory of 4848 3128 4219085.exe 4219085.exe PID 3128 wrote to memory of 4848 3128 4219085.exe 4219085.exe PID 3128 wrote to memory of 4848 3128 4219085.exe 4219085.exe PID 3128 wrote to memory of 4848 3128 4219085.exe 4219085.exe PID 3128 wrote to memory of 4848 3128 4219085.exe 4219085.exe PID 3128 wrote to memory of 4848 3128 4219085.exe 4219085.exe PID 3128 wrote to memory of 4848 3128 4219085.exe 4219085.exe -
outlook_office_path 1 IoCs
Processes:
4219085.exedescription 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
Processes:
4219085.exedescription 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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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
fd37ebfc1ef5a886c5ad12583ac943f7
SHA1944f4393700f66dd44c639961e57e454ba3ea548
SHA256861b011f379c4d2483dcf5c78d77d3ed1d3a6a740b8a4be0dec0f5fe03e4850a
SHA512e414d3428bc087e982af853125e41c068f824d6d710d4e1187f52e6500afabc6fd8d9ad186d6acee03a44952401f781835b7b5060e2860fc7a171d7ed8135299