Analysis
- max time kernel
137s - max time network
138s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 19:38
General
- Target PO# -RDPLI2020-03060 - PILOT# 154550.exe
- Size 506KB
- Sample201109-qcd7f3ed36
- SHA256 3f68b22fb16c34f3e0b8f0437901b1a67ee94ad173d4d810abd91b7bf2c8d3a3
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.villanika.gr
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Port
587
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Username
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Password
n2^-9wE@Wl}t
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
- AgentTesla Payload 14 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- Disables Task Manager via registry modification
- Drops file in Drivers directory 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Program crash 1 IoCs
- Modifies registry key 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 19 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO# -RDPLI2020-03060 - PILOT# 154550.exe"C:\Users\Admin\AppData\Local\Temp\PO# -RDPLI2020-03060 - PILOT# 154550.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"{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\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 14803⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/640-0-0x0000000073E00000-0x00000000744EE000-memory.dmp
memory/640-1-0x0000000000A60000-0x0000000000A61000-memory.dmp
memory/640-3-0x0000000005380000-0x00000000053DE000-memory.dmp
memory/640-4-0x0000000007FE0000-0x0000000007FE1000-memory.dmp
memory/640-5-0x0000000007D00000-0x0000000007D01000-memory.dmp
memory/640-6-0x0000000007CE0000-0x0000000007CE1000-memory.dmp
memory/640-7-0x0000000002C00000-0x0000000002C03000-memory.dmp
memory/640-8-0x000000000A0F0000-0x000000000A143000-memory.dmp
memory/640-9-0x000000000A1F0000-0x000000000A1F1000-memory.dmp
memory/2884-17-0x0000000005170000-0x0000000005171000-memory.dmp
memory/2884-10-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2884-12-0x0000000073E00000-0x00000000744EE000-memory.dmp
memory/2884-18-0x0000000005C30000-0x0000000005C31000-memory.dmp
memory/3880-20-0x0000000005040000-0x0000000005041000-memory.dmp
memory/3880-33-0x0000000005870000-0x0000000005871000-memory.dmp