Analysis
- max time kernel
128s - max time network
110s - platform
windows10_x64 - resource
win10v20201028 - submitted
26/02/2021, 14:42
General
- Target 9a041438adec53ed9e8f6ed3b2eb709b.exe
- Size 661KB
- Sample210226-lgjmcc8mvx
- SHA256 bb8889ec467fc276ee609b20f9f321dbd97b0bdba919bbf9e38f7d8d7517ed2b
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.konokonozanzibar.com
-
Port
587
-
Username
-
Password
Kk20@All
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 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\9a041438adec53ed9e8f6ed3b2eb709b.exe"C:\Users\Admin\AppData\Local\Temp\9a041438adec53ed9e8f6ed3b2eb709b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\evmcsxVj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD799.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\9a041438adec53ed9e8f6ed3b2eb709b.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/1032-11-0x0000000006E50000-0x0000000006ED6000-memory.dmp
memory/1032-3-0x00000000008D0000-0x00000000008D1000-memory.dmp
memory/1032-7-0x0000000005340000-0x0000000005341000-memory.dmp
memory/1032-8-0x0000000005380000-0x0000000005381000-memory.dmp
memory/1032-9-0x0000000008A30000-0x0000000008A31000-memory.dmp
memory/1032-10-0x0000000005570000-0x000000000557B000-memory.dmp
memory/1032-2-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/1032-5-0x00000000055E0000-0x00000000055E1000-memory.dmp
memory/1032-6-0x00000000051C0000-0x00000000051C1000-memory.dmp
memory/3656-14-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3656-17-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/3656-22-0x0000000005880000-0x0000000005881000-memory.dmp
memory/3656-23-0x00000000062A0000-0x00000000062A1000-memory.dmp
memory/3656-24-0x0000000006330000-0x0000000006331000-memory.dmp
memory/3656-27-0x0000000005881000-0x0000000005882000-memory.dmp