Analysis
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max time kernel
125s -
max time network
40s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
24-06-2020 15:09
Static task
static1
Behavioral task
behavioral1
Sample
Halkbank_Ekstre_20200601-20200618_074852_956489.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
Halkbank_Ekstre_20200601-20200618_074852_956489.exe
Resource
win10v200430
General
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Target
Halkbank_Ekstre_20200601-20200618_074852_956489.exe
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Size
1.3MB
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MD5
6dd729f4967d577e71d81374454da106
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SHA1
e08653a3dd57fb4ef7783f03f4dc85bf5fe8e95e
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SHA256
d3a34f2a11f7827210e99fd8fa21d563474986964268766437baba7c36dcbfd8
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SHA512
512af81be6ff817bf138e9eacf64878e1bd5aa5709a5c68b1f952a618f7153ce5899c158a29fcf5962941c2c6b58cb6fd5b7d31925a09c445b3194c57b5814c1
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.bioaktif.com - Port:
587 - Username:
siparis@bioaktif.com - Password:
Bio.6748891
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 behavioral1/memory/1760-1-0x00000000000C6FEE-mapping.dmp family_agenttesla behavioral1/memory/1760-0-0x0000000000080000-0x00000000000CC000-memory.dmp family_agenttesla behavioral1/memory/1760-2-0x0000000000080000-0x00000000000CC000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
MSBuild.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Halkbank_Ekstre_20200601-20200618_074852_956489.exedescription pid process target process PID 1004 set thread context of 1760 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
MSBuild.exepid process 1760 MSBuild.exe 1760 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 1760 MSBuild.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
Halkbank_Ekstre_20200601-20200618_074852_956489.exepid process 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
Halkbank_Ekstre_20200601-20200618_074852_956489.exepid process 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
Halkbank_Ekstre_20200601-20200618_074852_956489.exedescription pid process target process PID 1004 wrote to memory of 1760 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe MSBuild.exe PID 1004 wrote to memory of 1760 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe MSBuild.exe PID 1004 wrote to memory of 1760 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe MSBuild.exe PID 1004 wrote to memory of 1760 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe MSBuild.exe PID 1004 wrote to memory of 1760 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe MSBuild.exe PID 1004 wrote to memory of 1760 1004 Halkbank_Ekstre_20200601-20200618_074852_956489.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200601-20200618_074852_956489.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200601-20200618_074852_956489.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\MSBuild.exe"2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken