Analysis
- max time kernel
120s - max time network
122s - platform
windows7_x64 - resource
win7v20201028 - submitted
24/02/2021, 08:04
General
- Target 2724e3847ab9d043159c984a612d4173.exe
- Size 824KB
- Sample210224-pppn12hbb2
- SHA256 ce76fc43c1ae2fc7d499a24d0d93b8ffae25e9d3ef6d6c8086e54ffd0d29ff31
Malware Config
Extracted
-
agenttesla
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Protocol
smtp
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Host
smtp.homecares-tw.com
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Port
587
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Username
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Password
IkxbPQj3
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- Drops file in Drivers directory 1 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2724e3847ab9d043159c984a612d4173.exe"C:\Users\Admin\AppData\Local\Temp\2724e3847ab9d043159c984a612d4173.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kWPearWV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC4F4.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\2724e3847ab9d043159c984a612d4173.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\netsh.exe"netsh" wlan show profile3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/792-6-0x0000000000310000-0x000000000031B000-memory.dmp
memory/792-5-0x0000000004D10000-0x0000000004D11000-memory.dmp
memory/792-2-0x00000000747A0000-0x0000000074E8E000-memory.dmp
memory/792-7-0x0000000005380000-0x0000000005416000-memory.dmp
memory/792-3-0x0000000000B00000-0x0000000000B01000-memory.dmp
memory/1120-10-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1120-12-0x00000000747A0000-0x0000000074E8E000-memory.dmp
memory/1120-13-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1120-15-0x0000000004260000-0x0000000004261000-memory.dmp
memory/1120-18-0x0000000004261000-0x0000000004262000-memory.dmp
memory/1604-17-0x00000000765E1000-0x00000000765E3000-memory.dmp