Analysis
- max time kernel
125s - max time network
125s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
16/12/2021, 14:36
General
- Target Bank Draft Copy.exe
- Size 518KB
- Sample211216-rykvcsdabm
- SHA256 1c4c74cbfbf8ff3188425f593b6563deace3cfebfffa42527e4b3f51a80c1fee
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot2043981125:AAGaa5K6uc5rV5LARENbXhpoD0InPrKgKJI/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- Drops file in Drivers directory 1 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Bank Draft Copy.exe"C:\Users\Admin\AppData\Local\Temp\Bank Draft Copy.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Bank Draft Copy.exe"C:\Users\Admin\AppData\Local\Temp\Bank Draft Copy.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2656-122-0x0000000007410000-0x0000000007411000-memory.dmp
memory/2656-124-0x0000000007620000-0x000000000768A000-memory.dmp
memory/2656-119-0x0000000004B70000-0x0000000004B71000-memory.dmp
memory/2656-120-0x0000000004DE0000-0x0000000004DE1000-memory.dmp
memory/2656-121-0x0000000004DD0000-0x0000000004DD8000-memory.dmp
memory/2656-115-0x00000000002B0000-0x00000000002B1000-memory.dmp
memory/2656-123-0x0000000004B90000-0x000000000508E000-memory.dmp
memory/2656-118-0x0000000004B90000-0x0000000004B91000-memory.dmp
memory/2656-117-0x0000000005090000-0x0000000005091000-memory.dmp
memory/3576-125-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3576-132-0x0000000004EA0000-0x000000000539E000-memory.dmp
memory/3576-133-0x0000000005370000-0x0000000005371000-memory.dmp
memory/3576-134-0x0000000005B00000-0x0000000005B01000-memory.dmp