Analysis
- max time kernel
74s - max time network
131s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 19:37
General
- Target FACTURA Y ALBARANES.exe
- Size 506KB
- Sample201109-237db974xn
- SHA256 8884820e4b10d43f04ccd1a7ff14eafccadf1184ce080b2b2e0836a7dc786f4e
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
mail.fridec.com
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Port
587
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Username
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Password
@zOmvs]eL!$*
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
- AgentTesla Payload 2 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- 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 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\FACTURA Y ALBARANES.exe"C:\Users\Admin\AppData\Local\Temp\FACTURA Y ALBARANES.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\FACTURA Y ALBARANES.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/204-17-0x0000000000400000-0x0000000000452000-memory.dmp
memory/204-26-0x0000000006350000-0x0000000006351000-memory.dmp
memory/204-25-0x0000000005730000-0x0000000005731000-memory.dmp
memory/204-20-0x0000000073190000-0x000000007387E000-memory.dmp
memory/580-4-0x0000000007740000-0x0000000007741000-memory.dmp
memory/580-16-0x000000000B2C0000-0x000000000B2C1000-memory.dmp
memory/580-15-0x000000000B060000-0x000000000B0B3000-memory.dmp
memory/580-14-0x0000000004C30000-0x0000000004C33000-memory.dmp
memory/580-5-0x0000000007720000-0x0000000007721000-memory.dmp
memory/580-0-0x0000000073190000-0x000000007387E000-memory.dmp
memory/580-3-0x0000000007B60000-0x0000000007B61000-memory.dmp
memory/580-1-0x0000000000970000-0x0000000000971000-memory.dmp