Analysis
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max time kernel
171s -
max time network
43s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 00:59
Static task
static1
Behavioral task
behavioral1
Sample
INV01.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
INV01.exe
Resource
win10v2004-20220414-en
General
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Target
INV01.exe
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Size
440KB
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MD5
b9743458d1fc6404f135ad3316f174b9
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SHA1
1df0673acc0e37439031915478b2ae8817fbd478
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SHA256
d31acad1f441efed4a4cef4782ff79cce51d37a1e78b8a9af72c484326e5fd01
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SHA512
71b07f3b916cb60a4f7186420e1daa42616f2bc1e60679ed00d53e832dbc23d5b2b12ec9c96d894269fe366223855d656c240c0093d8a27e98f16fd49f307889
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.nedtek.com.au/ - Port:
21 - Username:
[email protected] - Password:
philomina1234567890
Protocol: ftp- Host:
ftp://ftp.nedtek.com.au/ - Port:
21 - Username:
[email protected] - Password:
philomina1234567890
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1120-61-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1120-62-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1120-63-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1120-64-0x000000000044C52E-mapping.dmp family_agenttesla behavioral1/memory/1120-66-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1120-68-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla -
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:
INV01.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV01.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV01.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV01.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INV01.exedescription pid process target process PID 1444 set thread context of 1120 1444 INV01.exe INV01.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 2 IoCs
Processes:
INV01.exepid process 1120 INV01.exe 1120 INV01.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
INV01.exedescription pid process Token: SeDebugPrivilege 1120 INV01.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
INV01.exepid process 1120 INV01.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
INV01.exeINV01.exedescription pid process target process PID 1444 wrote to memory of 1800 1444 INV01.exe schtasks.exe PID 1444 wrote to memory of 1800 1444 INV01.exe schtasks.exe PID 1444 wrote to memory of 1800 1444 INV01.exe schtasks.exe PID 1444 wrote to memory of 1800 1444 INV01.exe schtasks.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1444 wrote to memory of 1120 1444 INV01.exe INV01.exe PID 1120 wrote to memory of 1696 1120 INV01.exe netsh.exe PID 1120 wrote to memory of 1696 1120 INV01.exe netsh.exe PID 1120 wrote to memory of 1696 1120 INV01.exe netsh.exe PID 1120 wrote to memory of 1696 1120 INV01.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
INV01.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV01.exe -
outlook_win_path 1 IoCs
Processes:
INV01.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INV01.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INV01.exe"C:\Users\Admin\AppData\Local\Temp\INV01.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WCzIUAlb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF7D7.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\INV01.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpF7D7.tmpFilesize
1KB
MD5e8bfe2f2829b50ca04d5acad633a9c9b
SHA1d9329e0618cc96fd3aa55cc34b6f08cdda4abc26
SHA2562db20cdbd7382155edd326339b31553454710e767575b5728837add5e2080b07
SHA5127943c7582089f04b45c2bcb2d2a8c4e1f001e630e43c456c1d20bc4b3db20e1d44d7b5690ec7ba18c33fe9ff077bd3bda12b43f53bc9fc4076bdadbf88be83f7
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memory/1120-61-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1120-58-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1120-59-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1120-62-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1120-63-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1120-64-0x000000000044C52E-mapping.dmp
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memory/1120-66-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1120-68-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1120-70-0x0000000074640000-0x0000000074BEB000-memory.dmpFilesize
5.7MB
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memory/1444-55-0x0000000074640000-0x0000000074BEB000-memory.dmpFilesize
5.7MB
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memory/1444-54-0x0000000076431000-0x0000000076433000-memory.dmpFilesize
8KB
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memory/1696-71-0x0000000000000000-mapping.dmp
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memory/1800-56-0x0000000000000000-mapping.dmp