Analysis
- max time kernel
140s - max time network
124s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
07/01/2022, 08:55
General
- Target d14ba8c9aea3b5982fa28b7d90f43535.exe
- Size 1.1MB
- Sample220107-kvf9facdhr
- SHA256 6821b08cb8ebc1e38504de290856429fed68be2fcaa455e6dde2e6f9926787c1
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
milax.tk
-
Port
587
-
Username
-
Password
7213575aceACE@#$
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
- Drops file in Drivers directory 1 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d14ba8c9aea3b5982fa28b7d90f43535.exe"C:\Users\Admin\AppData\Local\Temp\d14ba8c9aea3b5982fa28b7d90f43535.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\d14ba8c9aea3b5982fa28b7d90f43535.exe"C:\Users\Admin\AppData\Local\Temp\d14ba8c9aea3b5982fa28b7d90f43535.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3112-133-0x0000000005610000-0x0000000005B0E000-memory.dmp
memory/3112-139-0x00000000060F0000-0x00000000060FA000-memory.dmp
memory/3112-138-0x0000000006540000-0x00000000065D2000-memory.dmp
memory/3112-137-0x0000000005E70000-0x0000000005ED6000-memory.dmp
memory/3112-136-0x00000000055B0000-0x00000000055C8000-memory.dmp
memory/3112-131-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3112-135-0x0000000005110000-0x000000000560E000-memory.dmp
memory/3112-134-0x0000000005310000-0x00000000053AC000-memory.dmp
memory/3112-128-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3112-132-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3792-125-0x0000000008C80000-0x0000000008D1C000-memory.dmp
memory/3792-119-0x00000000008F0000-0x0000000000A1A000-memory.dmp
memory/3792-120-0x0000000005850000-0x0000000005D4E000-memory.dmp
memory/3792-118-0x00000000008F0000-0x0000000000A1A000-memory.dmp
memory/3792-127-0x0000000008D90000-0x0000000008E00000-memory.dmp
memory/3792-126-0x0000000008BE0000-0x0000000008C2B000-memory.dmp
memory/3792-124-0x0000000008940000-0x000000000894C000-memory.dmp
memory/3792-123-0x0000000005250000-0x000000000525A000-memory.dmp
memory/3792-122-0x0000000005350000-0x000000000584E000-memory.dmp
memory/3792-121-0x0000000005260000-0x00000000052F2000-memory.dmp