Analysis
- max time kernel
137s - max time network
126s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
11/10/2021, 12:26
General
- Target UIO90236789.COM.exe
- Size 879KB
- Sample211011-pl731shbb7
- SHA256 02c1c3d0a08dd710a016f1613832e7cf6f4da6dfcd506b9f8ca3ddfe0092f2cb
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.privateemail.com
-
Port
587
-
Username
-
Password
lasco4000@@5678
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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\UIO90236789.COM.exe"C:\Users\Admin\AppData\Local\Temp\UIO90236789.COM.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\UIO90236789.COM.exe"C:\Users\Admin\AppData\Local\Temp\UIO90236789.COM.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/656-124-0x0000000000400000-0x000000000043C000-memory.dmp
memory/656-136-0x00000000057A0000-0x0000000005C9E000-memory.dmp
memory/656-133-0x0000000006500000-0x0000000006501000-memory.dmp
memory/656-132-0x00000000059A0000-0x00000000059A1000-memory.dmp
memory/656-131-0x00000000057A0000-0x0000000005C9E000-memory.dmp
memory/1844-119-0x00000000053F0000-0x00000000053F1000-memory.dmp
memory/1844-123-0x0000000008F30000-0x0000000008FD8000-memory.dmp
memory/1844-122-0x0000000008D00000-0x0000000008D01000-memory.dmp
memory/1844-121-0x0000000005410000-0x000000000590E000-memory.dmp
memory/1844-120-0x0000000005730000-0x0000000005741000-memory.dmp
memory/1844-115-0x0000000000AE0000-0x0000000000AE1000-memory.dmp
memory/1844-118-0x00000000054B0000-0x00000000054B1000-memory.dmp
memory/1844-117-0x0000000005910000-0x0000000005911000-memory.dmp