Analysis
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max time kernel
128s -
max time network
41s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
30-06-2020 16:49
Static task
static1
Behavioral task
behavioral1
Sample
payment-copy.exe
Resource
win7
Behavioral task
behavioral2
Sample
payment-copy.exe
Resource
win10v200430
General
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Target
payment-copy.exe
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Size
384KB
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MD5
9d993e2df83b59c6300762da5280b92c
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SHA1
09c58b31658a474612d234c3d5f5ddcdbf198694
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SHA256
19a698caf6076777fe8cc3790de4de3accb9d68ee847ab1045cb60880f7b108f
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SHA512
f6290118a0698e127ff9c1480cc973ee3a765df340d2f8d930277247bcebb0d28f62b029952e23db5799f60b87b5f8828a268b74e44c43ab40b1b2d74da6b71f
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.delegatesinrwanda.com - Port:
587 - Username:
[email protected] - Password:
Password_89
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/1296-0-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/1296-1-0x0000000000446EDE-mapping.dmp family_agenttesla -
Drops startup file 1 IoCs
Processes:
payment-copy.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HJdyTuap.exe payment-copy.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegAsm.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\MdVaXFM = "C:\\Users\\Admin\\AppData\\Roaming\\MdVaXFM\\MdVaXFM.exe" RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
payment-copy.exedescription pid process target process PID 3216 set thread context of 1296 3216 payment-copy.exe RegAsm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 1296 RegAsm.exe 1296 RegAsm.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
payment-copy.exepid process 3216 payment-copy.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 1296 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
RegAsm.exepid process 1296 RegAsm.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
payment-copy.execmd.exedescription pid process target process PID 3216 wrote to memory of 1296 3216 payment-copy.exe RegAsm.exe PID 3216 wrote to memory of 1296 3216 payment-copy.exe RegAsm.exe PID 3216 wrote to memory of 1296 3216 payment-copy.exe RegAsm.exe PID 3216 wrote to memory of 1296 3216 payment-copy.exe RegAsm.exe PID 3216 wrote to memory of 1564 3216 payment-copy.exe cmd.exe PID 3216 wrote to memory of 1564 3216 payment-copy.exe cmd.exe PID 3216 wrote to memory of 1564 3216 payment-copy.exe cmd.exe PID 1564 wrote to memory of 1896 1564 cmd.exe choice.exe PID 1564 wrote to memory of 1896 1564 cmd.exe choice.exe PID 1564 wrote to memory of 1896 1564 cmd.exe choice.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\payment-copy.exe"C:\Users\Admin\AppData\Local\Temp\payment-copy.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\payment-copy.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\choice.exechoice /C Y /N /D Y /T 33⤵