Analysis
- max time kernel
130s - max time network
131s - platform
windows7_x64 - resource
win7v20201028 - submitted
09/11/2020, 19:43
General
- Target Akbank Hesap Özetiniz.exe
- Size 484KB
- Sample201109-an44gpaj32
- SHA256 b36cdef1bf3b71c8edb27b1d2eabaa00b2df89f3a46bc9c727f4dbb6956fcddb
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
kroskofile
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 4 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 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Akbank Hesap Özetiniz.exe"C:\Users\Admin\AppData\Local\Temp\Akbank Hesap Özetiniz.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Akbank Hesap Özetiniz.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/484-0-0x00000000747A0000-0x0000000074E8E000-memory.dmp
memory/484-1-0x0000000000C20000-0x0000000000C21000-memory.dmp
memory/484-3-0x0000000000520000-0x0000000000523000-memory.dmp
memory/484-4-0x00000000059C0000-0x0000000005A11000-memory.dmp
memory/1176-5-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1176-7-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1176-8-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1176-9-0x00000000747A0000-0x0000000074E8E000-memory.dmp