Analysis
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max time kernel
133s -
max time network
133s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
21-10-2021 06:05
Static task
static1
Behavioral task
behavioral1
Sample
4300008980.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
4300008980.exe
Resource
win10-en-20210920
General
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Target
4300008980.exe
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Size
459KB
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MD5
de8e80d61ed0665c6cfec2122e11d6c7
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SHA1
97ca477c06676e1b72db3c38654f88f42b805866
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SHA256
6332ce856a353587019ae83e767a515552e4d7a36ac631ebc2c292185850b5d7
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SHA512
7268d9455636d92c776969e7dfc45fd453aa21f59b76a9d25499d8ebd3fdda829aebcc1b72e5afb50e6060bc7c3c200956e36fbe16be5177f70a4ad719928a9e
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
sandra.hurm@voestallpine.com - Password:
project2021blessing
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/1032-124-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1032-125-0x000000000043762E-mapping.dmp family_agenttesla behavioral2/memory/1032-130-0x0000000005650000-0x0000000005B4E000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
4300008980.exedescription pid process target process PID 2132 set thread context of 1032 2132 4300008980.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
4300008980.exeRegSvcs.exepid process 2132 4300008980.exe 2132 4300008980.exe 1032 RegSvcs.exe 1032 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
4300008980.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 2132 4300008980.exe Token: SeDebugPrivilege 1032 RegSvcs.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
4300008980.exedescription pid process target process PID 2132 wrote to memory of 1032 2132 4300008980.exe RegSvcs.exe PID 2132 wrote to memory of 1032 2132 4300008980.exe RegSvcs.exe PID 2132 wrote to memory of 1032 2132 4300008980.exe RegSvcs.exe PID 2132 wrote to memory of 1032 2132 4300008980.exe RegSvcs.exe PID 2132 wrote to memory of 1032 2132 4300008980.exe RegSvcs.exe PID 2132 wrote to memory of 1032 2132 4300008980.exe RegSvcs.exe PID 2132 wrote to memory of 1032 2132 4300008980.exe RegSvcs.exe PID 2132 wrote to memory of 1032 2132 4300008980.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4300008980.exe"C:\Users\Admin\AppData\Local\Temp\4300008980.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1032-124-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1032-135-0x0000000005650000-0x0000000005B4E000-memory.dmpFilesize
5.0MB
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memory/1032-132-0x0000000006440000-0x0000000006441000-memory.dmpFilesize
4KB
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memory/1032-131-0x0000000005AA0000-0x0000000005AA1000-memory.dmpFilesize
4KB
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memory/1032-130-0x0000000005650000-0x0000000005B4E000-memory.dmpFilesize
5.0MB
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memory/1032-125-0x000000000043762E-mapping.dmp
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memory/2132-119-0x00000000074E0000-0x00000000074E1000-memory.dmpFilesize
4KB
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memory/2132-123-0x0000000009090000-0x00000000090E8000-memory.dmpFilesize
352KB
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memory/2132-122-0x0000000008EF0000-0x0000000008EF1000-memory.dmpFilesize
4KB
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memory/2132-121-0x000000000ABE0000-0x000000000ABE7000-memory.dmpFilesize
28KB
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memory/2132-120-0x0000000007450000-0x000000000794E000-memory.dmpFilesize
5.0MB
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memory/2132-115-0x0000000000760000-0x0000000000761000-memory.dmpFilesize
4KB
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memory/2132-118-0x0000000007530000-0x0000000007531000-memory.dmpFilesize
4KB
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memory/2132-117-0x0000000007950000-0x0000000007951000-memory.dmpFilesize
4KB