Analysis
- max time kernel
131s - max time network
117s - platform
windows7_x64 - resource
win7-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 5 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 9 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/576-65-0x0000000000400000-0x000000000043C000-memory.dmp
memory/576-70-0x0000000004B91000-0x0000000004B92000-memory.dmp
memory/576-63-0x0000000000400000-0x000000000043C000-memory.dmp
memory/576-67-0x0000000000400000-0x000000000043C000-memory.dmp
memory/576-61-0x0000000000400000-0x000000000043C000-memory.dmp
memory/576-64-0x0000000000400000-0x000000000043C000-memory.dmp
memory/576-69-0x0000000004B90000-0x0000000004B91000-memory.dmp
memory/576-62-0x0000000000400000-0x000000000043C000-memory.dmp
memory/788-55-0x00000000010A0000-0x00000000010A1000-memory.dmp
memory/788-57-0x0000000075B11000-0x0000000075B13000-memory.dmp
memory/788-60-0x0000000005560000-0x00000000055CA000-memory.dmp
memory/788-59-0x00000000003D0000-0x00000000003D8000-memory.dmp
memory/788-58-0x0000000004E10000-0x0000000004E11000-memory.dmp