Analysis
- max time kernel
75s - max time network
129s - platform
windows10_x64 - resource
win10v200722 - submitted
09/09/2020, 12:24
General
- Target 47ee318370482e518b7305179a8f1445.exe
- Size 563KB
- Sample200909-n8clqla92e
- SHA256 4dd8941c43c5868e2bbabb63ea7010c914910ee9b5daca0832d4b612dcd5c39b
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
Money1234!@
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.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 1 IoCs
- Modifies data under HKEY_USERS 5 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\47ee318370482e518b7305179a8f1445.exe"C:\Users\Admin\AppData\Local\Temp\47ee318370482e518b7305179a8f1445.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\47ee318370482e518b7305179a8f1445.exe"C:\Users\Admin\AppData\Local\Temp\47ee318370482e518b7305179a8f1445.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3820-12-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3820-21-0x0000000005EF0000-0x0000000005EF1000-memory.dmp
memory/3820-20-0x0000000005E50000-0x0000000005E51000-memory.dmp
memory/3820-15-0x0000000073270000-0x000000007395E000-memory.dmp
memory/3952-5-0x00000000052D0000-0x00000000052D1000-memory.dmp
memory/3952-8-0x00000000051E0000-0x00000000051F0000-memory.dmp
memory/3952-9-0x0000000005750000-0x00000000057A7000-memory.dmp
memory/3952-10-0x0000000005200000-0x0000000005202000-memory.dmp
memory/3952-11-0x0000000005FD0000-0x000000000600B000-memory.dmp
memory/3952-7-0x0000000005510000-0x0000000005511000-memory.dmp
memory/3952-6-0x00000000051C0000-0x00000000051C1000-memory.dmp
memory/3952-0-0x0000000073270000-0x000000007395E000-memory.dmp
memory/3952-4-0x00000000057D0000-0x00000000057D1000-memory.dmp
memory/3952-3-0x0000000005230000-0x0000000005231000-memory.dmp
memory/3952-1-0x0000000000920000-0x0000000000921000-memory.dmp