Analysis
- max time kernel
146s - max time network
127s - platform
windows10_x64 - resource
win10v200722 - submitted
08/10/2020, 14:06
General
- Target DHL Shipment document AWB 2375690032178_PDF.exe
- Size 535KB
- Sample201008-cncntrhcex
- SHA256 223c38be022bf37ef243556438ecd472ae67bbb46fcf0e7ce4ea3173260141e9
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
Omega123$
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 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
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL Shipment document AWB 2375690032178_PDF.exe"C:\Users\Admin\AppData\Local\Temp\DHL Shipment document AWB 2375690032178_PDF.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/496-3-0x0000000003110000-0x0000000003147000-memory.dmp
memory/496-6-0x00000000057C0000-0x00000000057C1000-memory.dmp
memory/496-4-0x0000000005C20000-0x0000000005C21000-memory.dmp
memory/496-8-0x00000000064E0000-0x00000000064F6000-memory.dmp
memory/496-0-0x0000000073700000-0x0000000073DEE000-memory.dmp
memory/496-1-0x0000000000DC0000-0x0000000000DC1000-memory.dmp
memory/496-5-0x0000000003330000-0x0000000003331000-memory.dmp
memory/2172-10-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2172-14-0x0000000073700000-0x0000000073DEE000-memory.dmp
memory/2172-18-0x00000000059D0000-0x00000000059D1000-memory.dmp
memory/2172-19-0x0000000005CB0000-0x0000000005CB1000-memory.dmp
memory/2172-20-0x0000000006480000-0x0000000006481000-memory.dmp
memory/2172-22-0x0000000006600000-0x0000000006601000-memory.dmp