Analysis
- max time kernel
140s - max time network
113s - platform
windows10_x64 - resource
win10v20210408 - 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 8 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/412-125-0x0000000000400000-0x000000000043C000-memory.dmp
memory/412-134-0x0000000005B00000-0x0000000005B01000-memory.dmp
memory/412-133-0x0000000004F60000-0x0000000004F61000-memory.dmp
memory/412-132-0x0000000004E10000-0x000000000530E000-memory.dmp
memory/1096-119-0x00000000050E0000-0x00000000050E1000-memory.dmp
memory/1096-122-0x00000000051C0000-0x00000000051D1000-memory.dmp
memory/1096-123-0x0000000006070000-0x0000000006123000-memory.dmp
memory/1096-124-0x0000000008630000-0x0000000008680000-memory.dmp
memory/1096-121-0x00000000051F0000-0x00000000056EE000-memory.dmp
memory/1096-120-0x0000000005410000-0x0000000005411000-memory.dmp
memory/1096-114-0x0000000000790000-0x0000000000791000-memory.dmp
memory/1096-118-0x00000000051F0000-0x00000000051F1000-memory.dmp
memory/1096-117-0x00000000056F0000-0x00000000056F1000-memory.dmp
memory/1096-116-0x0000000005110000-0x0000000005111000-memory.dmp