Analysis
- max time kernel
131s - max time network
119s - platform
windows10_x64 - resource
win10v20210410 - submitted
28/06/2021, 05:21
General
- Target WaybillDoc_3227610761.exe
- Size 893KB
- Sample210628-axpr4211fa
- SHA256 125caafa4c7faba98d28351be9df1d207a983137e2d3e483504dc0fb5433ea94
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.prinutrition.com
-
Port
587
-
Username
-
Password
forrest
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\WaybillDoc_3227610761.exe"C:\Users\Admin\AppData\Local\Temp\WaybillDoc_3227610761.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\WaybillDoc_3227610761.exe"C:\Users\Admin\AppData\Local\Temp\WaybillDoc_3227610761.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
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Downloads
memory/3380-121-0x0000000004D10000-0x000000000520E000-memory.dmp
memory/3380-123-0x000000000B550000-0x000000000B5CD000-memory.dmp
memory/3380-118-0x0000000004DB0000-0x0000000004DB1000-memory.dmp
memory/3380-119-0x0000000004CD0000-0x0000000004CD1000-memory.dmp
memory/3380-120-0x0000000009170000-0x000000000B16F000-memory.dmp
memory/3380-114-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/3380-122-0x000000000B4B0000-0x000000000B54E000-memory.dmp
memory/3380-117-0x0000000004D10000-0x0000000004D11000-memory.dmp
memory/3380-116-0x0000000005210000-0x0000000005211000-memory.dmp
memory/3572-124-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3572-131-0x00000000055A0000-0x0000000005A9E000-memory.dmp
memory/3572-132-0x00000000056F0000-0x00000000056F1000-memory.dmp
memory/3572-133-0x0000000005A30000-0x0000000005A31000-memory.dmp