Analysis
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max time kernel
97s -
max time network
96s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
09-11-2020 19:37
Behavioral task
behavioral1
Sample
new purchase order.rar.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
new purchase order.rar.exe
Resource
win10v20201028
General
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Target
new purchase order.rar.exe
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Size
523KB
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MD5
e50b58922768f36a719aa5e91c086c06
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SHA1
f2216e02ce43d07bc6bc8b7fb01461f1d9d1aa91
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SHA256
a4d3085a47bf0da4fa557e18de19bada74667d0eaa3dca959990b96215bb25cc
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SHA512
ba6be2906587a73203196853952878e017e99ad94edec3195a368edd99f9fb0c2ae3218b84bd943a57f0cdbbd340043c0858b9e050f330dbacdf26b45f32d078
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.villanika.gr - Port:
587 - Username:
info@villanika.gr - Password:
n2^-9wE@Wl}t
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
Processes:
resource yara_rule behavioral1/memory/536-4-0x0000000000310000-0x0000000000313000-memory.dmp coreentity -
AgentTesla Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1740-6-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1740-7-0x000000000044C6EE-mapping.dmp family_agenttesla behavioral1/memory/1740-8-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1740-9-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla -
Processes:
resource yara_rule behavioral1/memory/536-5-0x00000000044D0000-0x0000000004523000-memory.dmp rezer0 -
Disables Task Manager via registry modification
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Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
new purchase order.rar.exedescription pid process target process PID 536 set thread context of 1740 536 new purchase order.rar.exe RegSvcs.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 1740 RegSvcs.exe 1740 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
new purchase order.rar.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 536 new purchase order.rar.exe Token: SeDebugPrivilege 1740 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
new purchase order.rar.exepid process 536 new purchase order.rar.exe 536 new purchase order.rar.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
new purchase order.rar.exeRegSvcs.exedescription pid process target process PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 536 wrote to memory of 1740 536 new purchase order.rar.exe RegSvcs.exe PID 1740 wrote to memory of 1432 1740 RegSvcs.exe REG.exe PID 1740 wrote to memory of 1432 1740 RegSvcs.exe REG.exe PID 1740 wrote to memory of 1432 1740 RegSvcs.exe REG.exe PID 1740 wrote to memory of 1432 1740 RegSvcs.exe REG.exe PID 1740 wrote to memory of 744 1740 RegSvcs.exe netsh.exe PID 1740 wrote to memory of 744 1740 RegSvcs.exe netsh.exe PID 1740 wrote to memory of 744 1740 RegSvcs.exe netsh.exe PID 1740 wrote to memory of 744 1740 RegSvcs.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\new purchase order.rar.exe"C:\Users\Admin\AppData\Local\Temp\new purchase order.rar.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f3⤵
- Modifies registry key
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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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memory/536-0-0x0000000074360000-0x0000000074A4E000-memory.dmpFilesize
6.9MB
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memory/536-1-0x0000000000380000-0x0000000000381000-memory.dmpFilesize
4KB
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memory/536-4-0x0000000000310000-0x0000000000313000-memory.dmpFilesize
12KB
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memory/536-5-0x00000000044D0000-0x0000000004523000-memory.dmpFilesize
332KB
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memory/744-14-0x0000000000000000-mapping.dmp
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memory/1432-13-0x0000000000000000-mapping.dmp
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memory/1740-6-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1740-7-0x000000000044C6EE-mapping.dmp
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memory/1740-8-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1740-9-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1740-10-0x00000000742E0000-0x00000000749CE000-memory.dmpFilesize
6.9MB
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memory/1988-3-0x000007FEF6010000-0x000007FEF628A000-memory.dmpFilesize
2.5MB