Analysis
- max time kernel
140s - max time network
55s - platform
windows7_x64 - resource
win7v20210410 - submitted
20/08/2021, 12:46
General
- Target RFQ SMK_BNLDU20.exe
- Size 1.2MB
- Sample210820-e9am1b6fks
- SHA256 e4d2da009a40f7b1fbd7c9a488d521b5e035ebcd26ada683ea837aaf4b51a0d7
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.brimaq.com
-
Port
587
-
Username
-
Password
brimaQ2012
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\RFQ SMK_BNLDU20.exe"C:\Users\Admin\AppData\Local\Temp\RFQ SMK_BNLDU20.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RFQ SMK_BNLDU20.exe"C:\Users\Admin\AppData\Local\Temp\RFQ SMK_BNLDU20.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/656-66-0x0000000000400000-0x000000000043C000-memory.dmp
memory/656-68-0x0000000000400000-0x000000000043C000-memory.dmp
memory/656-70-0x0000000000C40000-0x0000000000C41000-memory.dmp
memory/656-71-0x0000000000C41000-0x0000000000C42000-memory.dmp
memory/1816-0-0x0000000001320000-0x0000000001321000-memory.dmp
memory/1816-2-0x0000000000350000-0x0000000000361000-memory.dmp
memory/1816-3-0x0000000004E80000-0x0000000004E81000-memory.dmp
memory/1816-64-0x00000000056E0000-0x0000000005793000-memory.dmp
memory/1816-65-0x0000000001090000-0x00000000010E0000-memory.dmp