Analysis
- max time kernel
148s - max time network
151s - platform
windows7_x64 - resource
win7-en-20210916 - submitted
17/09/2021, 11:43
General
- Target e8b97f6f5f99cde98b6d1c4f3876fb88.exe
- Size 464KB
- Sample210917-nvleyaaddp
- SHA256 3a1b9be61ba5086622efad5cb7194a5fef437caddecfe615e1d6c0799bc4589b
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.tccinfaes.com
-
Port
587
-
Username
-
Password
TccBps1427log
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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e8b97f6f5f99cde98b6d1c4f3876fb88.exe"C:\Users\Admin\AppData\Local\Temp\e8b97f6f5f99cde98b6d1c4f3876fb88.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\e8b97f6f5f99cde98b6d1c4f3876fb88.exe"C:\Users\Admin\AppData\Local\Temp\e8b97f6f5f99cde98b6d1c4f3876fb88.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/928-59-0x0000000000400000-0x000000000043C000-memory.dmp
memory/928-61-0x0000000000400000-0x000000000043C000-memory.dmp
memory/928-63-0x00000000048B0000-0x00000000048B1000-memory.dmp
memory/928-64-0x00000000048B1000-0x00000000048B2000-memory.dmp
memory/1920-53-0x0000000000D30000-0x0000000000D31000-memory.dmp
memory/1920-55-0x0000000004BE0000-0x0000000004BE1000-memory.dmp
memory/1920-56-0x00000000004B0000-0x00000000004B7000-memory.dmp
memory/1920-57-0x0000000004F90000-0x0000000004FF1000-memory.dmp
memory/1920-58-0x00000000005F0000-0x0000000000628000-memory.dmp