Analysis
- max time kernel
99s - max time network
111s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/12/2020, 10:19
General
- Target f9caf9f83cbe337855bf4b1197096ebc.exe
- Size 655KB
- Sample201209-vsxddad9fj
- SHA256 c5cc30ea5b9f4701271672d38c1199c0e9bcc8db08aabd8addc1c92a36b248fc
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.spamora.net
-
Port
587
-
Username
-
Password
Emotion1
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.spamora.net
-
Port
587
-
Username
-
Password
Emotion1
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f9caf9f83cbe337855bf4b1197096ebc.exe"C:\Users\Admin\AppData\Local\Temp\f9caf9f83cbe337855bf4b1197096ebc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vYIDLSLUBJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp35C.tmp"2⤵
- Creates scheduled task(s)
-
-
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/584-23-0x0000000005E90000-0x0000000005E91000-memory.dmp
memory/584-22-0x0000000005440000-0x0000000005441000-memory.dmp
memory/584-17-0x0000000073D60000-0x000000007444E000-memory.dmp
memory/584-14-0x0000000000400000-0x000000000045A000-memory.dmp
memory/4636-7-0x00000000049E0000-0x00000000049E1000-memory.dmp
memory/4636-11-0x00000000089D0000-0x00000000089D1000-memory.dmp
memory/4636-10-0x00000000081F0000-0x0000000008288000-memory.dmp
memory/4636-9-0x0000000006500000-0x000000000650E000-memory.dmp
memory/4636-8-0x0000000008400000-0x0000000008401000-memory.dmp
memory/4636-2-0x0000000073D60000-0x000000007444E000-memory.dmp
memory/4636-6-0x0000000004A40000-0x0000000004A41000-memory.dmp
memory/4636-5-0x0000000005000000-0x0000000005001000-memory.dmp
memory/4636-3-0x0000000000100000-0x0000000000101000-memory.dmp