Analysis
- max time kernel
117s - max time network
138s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
21/12/2021, 01:17
General
- Target Payment Slip.exe
- Size 600KB
- Sample211221-bndejacbb7
- SHA256 abffc06bc8ef92890372152d4a281c82183c34d5be27ee128f7920c0cbfc705a
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5082673869:AAHPx348yCyfnI9U-mY2fUJHGS4Mz9ftnQA/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
- Loads dropped DLL 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Payment Slip.exe"C:\Users\Admin\AppData\Local\Temp\Payment Slip.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Payment Slip.exe"C:\Users\Admin\AppData\Local\Temp\Payment Slip.exe"2⤵
- 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/1340-116-0x0000000000400000-0x000000000044B000-memory.dmp
memory/1340-119-0x0000000004AD0000-0x0000000004AD1000-memory.dmp
memory/1340-118-0x0000000000400000-0x000000000044B000-memory.dmp
memory/1340-120-0x00000000023C0000-0x00000000023F6000-memory.dmp
memory/1340-122-0x0000000004AE0000-0x0000000004AE1000-memory.dmp
memory/1340-123-0x00000000050A0000-0x00000000050A1000-memory.dmp
memory/1340-125-0x0000000004AD3000-0x0000000004AD4000-memory.dmp
memory/1340-124-0x0000000004AD2000-0x0000000004AD3000-memory.dmp
memory/1340-126-0x0000000004AD4000-0x0000000004AD5000-memory.dmp
memory/1340-127-0x00000000058F0000-0x00000000058F1000-memory.dmp
memory/1340-128-0x0000000005920000-0x0000000005921000-memory.dmp
memory/1340-129-0x00000000005A0000-0x00000000005A1000-memory.dmp
memory/1340-130-0x0000000000640000-0x0000000000641000-memory.dmp