Analysis
- max time kernel
144s - max time network
126s - platform
windows10_x64 - resource
win10v20210410 - submitted
06/08/2021, 23:57
General
- Target 066c252149d59c5952720b25d127f381.exe
- Size 1.0MB
- Sample210806-563e8cegla
- SHA256 e0e601b2b1f514081d893cba2d7ce5753c9db775bcfeddd7bc84d08a88659369
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.spamora.net
-
Port
587
-
Username
-
Password
Emotion22
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.
- Adds Run key to start application 2 TTPs 1 IoCs
- 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 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\066c252149d59c5952720b25d127f381.exe"C:\Users\Admin\AppData\Local\Temp\066c252149d59c5952720b25d127f381.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\KNANnAolyiZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp24CF.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\066c252149d59c5952720b25d127f381.exe"C:\Users\Admin\AppData\Local\Temp\066c252149d59c5952720b25d127f381.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3248-139-0x00000000054E0000-0x00000000059DE000-memory.dmp
memory/3248-136-0x0000000006240000-0x0000000006241000-memory.dmp
memory/3248-135-0x0000000005990000-0x0000000005991000-memory.dmp
memory/3248-134-0x00000000054E0000-0x00000000059DE000-memory.dmp
memory/3248-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3944-119-0x00000000053C0000-0x00000000053C1000-memory.dmp
memory/3944-124-0x000000000B5F0000-0x000000000B629000-memory.dmp
memory/3944-123-0x0000000008E00000-0x0000000008E9A000-memory.dmp
memory/3944-122-0x00000000061D0000-0x00000000061E3000-memory.dmp
memory/3944-121-0x00000000053C0000-0x000000000545C000-memory.dmp
memory/3944-120-0x00000000056C0000-0x00000000056C1000-memory.dmp
memory/3944-114-0x0000000000A90000-0x0000000000A91000-memory.dmp
memory/3944-118-0x0000000005500000-0x0000000005501000-memory.dmp
memory/3944-117-0x0000000005A00000-0x0000000005A01000-memory.dmp
memory/3944-116-0x0000000005460000-0x0000000005461000-memory.dmp