Analysis
- max time kernel
139s - max time network
139s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 19:33
General
- Target gunzipped.exe
- Size 622KB
- Sample201109-eaa7mrglpn
- SHA256 6338bfae5441345e2ae7f134d8a18349bf1ebe26bc772a7fda83b775a3693d58
Malware Config
Extracted
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Protocol
smtp
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Host
smtp.yandex.com
-
Port
587
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Username
-
Password
jonh-dickson247
Extracted
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agenttesla
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Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
jonh-dickson247
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- 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
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- 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
Loading Replay Monitor...
Downloads
memory/2556-14-0x0000000000400000-0x0000000000450000-memory.dmp
memory/2556-23-0x0000000005C40000-0x0000000005C41000-memory.dmp
memory/2556-22-0x0000000005090000-0x0000000005091000-memory.dmp
memory/2556-17-0x0000000073A20000-0x000000007410E000-memory.dmp
memory/3980-5-0x0000000005DB0000-0x0000000005DB1000-memory.dmp
memory/3980-11-0x00000000060E0000-0x00000000060E3000-memory.dmp
memory/3980-12-0x0000000009A10000-0x0000000009A11000-memory.dmp
memory/3980-13-0x0000000007F90000-0x0000000007FE1000-memory.dmp
memory/3980-10-0x0000000006610000-0x0000000006611000-memory.dmp
memory/3980-9-0x0000000005FF0000-0x0000000005FF1000-memory.dmp
memory/3980-8-0x0000000005D60000-0x0000000005D61000-memory.dmp
memory/3980-0-0x0000000073A20000-0x000000007410E000-memory.dmp
memory/3980-4-0x0000000006110000-0x0000000006111000-memory.dmp
memory/3980-3-0x0000000005A70000-0x0000000005ACB000-memory.dmp
memory/3980-1-0x0000000000FE0000-0x0000000000FE1000-memory.dmp