Analysis
- max time kernel
123s - max time network
130s - platform
windows10_x64 - resource
win10 - submitted
12/08/2020, 15:43
General
- Target gunzipped.exe
- Size 754KB
- Sample200812-pv6par4kn6
- SHA256 174229f02ec49094835e609fe32d2985382603a64a990dfe23dd2d71a3f0a00a
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
opjis0123
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
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
-
C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3248-10-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3248-19-0x0000000006080000-0x0000000006081000-memory.dmp
memory/3248-18-0x0000000005510000-0x0000000005511000-memory.dmp
memory/3248-13-0x0000000073500000-0x0000000073BEE000-memory.dmp
memory/3736-4-0x00000000056F0000-0x00000000056F1000-memory.dmp
memory/3736-8-0x0000000008740000-0x000000000879F000-memory.dmp
memory/3736-9-0x00000000087A0000-0x00000000087E9000-memory.dmp
memory/3736-7-0x0000000005910000-0x000000000591B000-memory.dmp
memory/3736-6-0x0000000005650000-0x0000000005651000-memory.dmp
memory/3736-5-0x0000000005790000-0x0000000005791000-memory.dmp
memory/3736-0-0x0000000073500000-0x0000000073BEE000-memory.dmp
memory/3736-3-0x0000000005B50000-0x0000000005B51000-memory.dmp
memory/3736-1-0x0000000000D60000-0x0000000000D61000-memory.dmp