Analysis
- max time kernel
130s - max time network
112s - platform
windows10_x64 - resource
win10v20201028 - submitted
05/04/2021, 06:28
General
- Target Remittance copy.pdf.exe
- Size 713KB
- Sample210405-ylcf4jb1la
- SHA256 ccadb83ba60ee8071cc3a4dd12d7169c78a8bd17aef30865101640b3cd73cc34
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.vivaldi.net
-
Port
587
-
Username
-
Password
858540506070
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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Remittance copy.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Remittance copy.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Remittance copy.pdf.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1400-7-0x0000000005270000-0x0000000005271000-memory.dmp
memory/1400-12-0x000000000ADD0000-0x000000000AE42000-memory.dmp
memory/1400-6-0x0000000005280000-0x0000000005281000-memory.dmp
memory/1400-2-0x0000000073FB0000-0x000000007469E000-memory.dmp
memory/1400-8-0x0000000005250000-0x0000000005251000-memory.dmp
memory/1400-9-0x00000000075E0000-0x00000000075E1000-memory.dmp
memory/1400-10-0x0000000005490000-0x0000000005495000-memory.dmp
memory/1400-11-0x00000000088E0000-0x0000000008992000-memory.dmp
memory/1400-5-0x00000000056E0000-0x00000000056E1000-memory.dmp
memory/1400-3-0x0000000000920000-0x0000000000921000-memory.dmp
memory/2852-13-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2852-16-0x0000000073FB0000-0x000000007469E000-memory.dmp
memory/2852-21-0x0000000005930000-0x0000000005931000-memory.dmp
memory/2852-22-0x00000000064F0000-0x00000000064F1000-memory.dmp
memory/2852-23-0x0000000006580000-0x0000000006581000-memory.dmp
memory/2852-26-0x0000000005931000-0x0000000005932000-memory.dmp