Analysis
- max time kernel
147s - max time network
103s - platform
windows10_x64 - resource
win10v20201028 - submitted
02/12/2020, 15:03
General
- Target SecuriteInfo.com.Generic.mg.db37503e0e66b5c4.10666.exe
- Size 881KB
- Sample201202-4ph6rs7fjs
- SHA256 2aa2a644cc059d9314a783e295e4c35102ffce374e2bf1b49f8fb8631ffdbb65
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
HEoxefZ9
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.
- 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 2 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.db37503e0e66b5c4.10666.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.db37503e0e66b5c4.10666.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RHgxlgJN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp46ED.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.db37503e0e66b5c4.10666.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.db37503e0e66b5c4.10666.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1056-26-0x0000000005D60000-0x0000000005D61000-memory.dmp
memory/1056-25-0x0000000005CD0000-0x0000000005CD1000-memory.dmp
memory/1056-20-0x00000000739D0000-0x00000000740BE000-memory.dmp
memory/1056-17-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4800-7-0x0000000004A80000-0x0000000004A81000-memory.dmp
memory/4800-12-0x00000000049D0000-0x00000000049D8000-memory.dmp
memory/4800-14-0x00000000463B0000-0x00000000463E9000-memory.dmp
memory/4800-11-0x0000000046260000-0x00000000462B7000-memory.dmp
memory/4800-10-0x0000000025E60000-0x0000000045E48000-memory.dmp
memory/4800-9-0x0000000004C20000-0x0000000004C21000-memory.dmp
memory/4800-8-0x0000000004920000-0x0000000004921000-memory.dmp
memory/4800-2-0x00000000739D0000-0x00000000740BE000-memory.dmp
memory/4800-6-0x0000000004F80000-0x0000000004F81000-memory.dmp
memory/4800-5-0x00000000049E0000-0x00000000049E1000-memory.dmp
memory/4800-3-0x0000000000020000-0x0000000000021000-memory.dmp