Analysis
- max time kernel
141s - max time network
141s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:40
General
- Target sezi.exe
- Size 693KB
- Sample201109-mxjnvblf92
- SHA256 9855128084d3f64cad749acea4eae6e76615e7bb2af406cfbc7a3e0c8932ab2c
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
Samrose1
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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 4 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\sezi.exe"C:\Users\Admin\AppData\Local\Temp\sezi.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\sezi.exe"C:\Users\Admin\AppData\Local\Temp\sezi.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1760-0-0x0000000000400000-0x00000000004A5000-memory.dmp
memory/1760-2-0x0000000000400000-0x00000000004A5000-memory.dmp
memory/1760-3-0x0000000000400000-0x00000000004A5000-memory.dmp
memory/1760-4-0x0000000002140000-0x000000000218C000-memory.dmp
memory/1760-5-0x00000000022E2000-0x00000000022E3000-memory.dmp
memory/1760-6-0x0000000073530000-0x0000000073C1E000-memory.dmp
memory/1760-9-0x0000000004A60000-0x0000000004A61000-memory.dmp
memory/1760-10-0x00000000048A0000-0x00000000048A1000-memory.dmp
memory/1760-11-0x00000000053F0000-0x00000000053F1000-memory.dmp
memory/1760-12-0x0000000005420000-0x0000000005421000-memory.dmp
memory/1760-13-0x0000000005ED0000-0x0000000005ED1000-memory.dmp
memory/1760-14-0x0000000005900000-0x0000000005901000-memory.dmp