Analysis
- max time kernel
102s - max time network
14s - platform
windows7_x64 - resource
win7v20201028 - submitted
09/12/2020, 10:19
General
- Target f9caf9f83cbe337855bf4b1197096ebc.exe
- Size 655KB
- Sample201209-vsxddad9fj
- SHA256 c5cc30ea5b9f4701271672d38c1199c0e9bcc8db08aabd8addc1c92a36b248fc
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.spamora.net
-
Port
587
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Username
-
Password
Emotion1
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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 SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f9caf9f83cbe337855bf4b1197096ebc.exe"C:\Users\Admin\AppData\Local\Temp\f9caf9f83cbe337855bf4b1197096ebc.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\vYIDLSLUBJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCA80.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\f9caf9f83cbe337855bf4b1197096ebc.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/764-9-0x0000000000400000-0x000000000045A000-memory.dmp
memory/764-11-0x0000000000400000-0x000000000045A000-memory.dmp
memory/764-12-0x0000000000400000-0x000000000045A000-memory.dmp
memory/764-13-0x00000000748A0000-0x0000000074F8E000-memory.dmp
memory/784-2-0x00000000748A0000-0x0000000074F8E000-memory.dmp
memory/784-3-0x0000000000DE0000-0x0000000000DE1000-memory.dmp
memory/784-5-0x0000000000360000-0x000000000036E000-memory.dmp
memory/784-6-0x0000000008250000-0x00000000082E8000-memory.dmp