Analysis
- max time kernel
123s - max time network
70s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/04/2021, 17:17
General
- Target cts new.pdf.exe
- Size 794KB
- Sample210409-l46tx4mga2
- SHA256 40d5467b45bd8a62d670278a3f4e6440dddcfabf057913ea76bb15ce5384b196
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.vivaldi.net
-
Port
587
-
Username
-
Password
858540506070
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\cts new.pdf.exe"C:\Users\Admin\AppData\Local\Temp\cts new.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cts new.pdf.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1108-123-0x0000000008AA0000-0x0000000008AFE000-memory.dmp
memory/1108-116-0x0000000005AD0000-0x0000000005AD1000-memory.dmp
memory/1108-118-0x00000000054B0000-0x00000000054B1000-memory.dmp
memory/1108-119-0x0000000005800000-0x0000000005805000-memory.dmp
memory/1108-120-0x0000000008B40000-0x0000000008B41000-memory.dmp
memory/1108-121-0x0000000005550000-0x0000000005551000-memory.dmp
memory/1108-117-0x00000000055D0000-0x00000000055D1000-memory.dmp
memory/1108-114-0x0000000000BB0000-0x0000000000BB1000-memory.dmp
memory/1108-122-0x0000000008D90000-0x0000000008E30000-memory.dmp
memory/2204-124-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2204-131-0x0000000005280000-0x000000000577E000-memory.dmp
memory/2204-132-0x0000000005310000-0x0000000005311000-memory.dmp
memory/2204-133-0x0000000005F70000-0x0000000005F71000-memory.dmp
memory/2204-136-0x0000000005280000-0x000000000577E000-memory.dmp