Analysis
- max time kernel
130s - max time network
13s - platform
windows7_x64 - resource
win7v20210410 - submitted
19/04/2021, 06:59
General
- Target Confirmation copy.pdf.exe
- Size 707KB
- Sample210419-cfe2r4tedn
- SHA256 ceeb7570066a45e98afcbffc0522bae96a5bb3c08270e922ba2a36ee360f0343
Malware Config
Extracted
-
agenttesla
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Protocol
smtp
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Host
smtp.vivaldi.net
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Port
587
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Username
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Password
858540506070
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Confirmation copy.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Confirmation copy.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Confirmation copy.pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Confirmation copy.pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Confirmation copy.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/1116-59-0x0000000000130000-0x0000000000131000-memory.dmp
memory/1116-61-0x0000000004AA0000-0x0000000004AA1000-memory.dmp
memory/1116-62-0x0000000000520000-0x0000000000525000-memory.dmp
memory/1116-63-0x000000007EF40000-0x000000007EF41000-memory.dmp
memory/1116-64-0x0000000005900000-0x00000000059B8000-memory.dmp
memory/1116-65-0x00000000002C0000-0x000000000033B000-memory.dmp
memory/1780-66-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1780-68-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1780-70-0x0000000004C00000-0x0000000004C01000-memory.dmp
memory/1780-71-0x0000000004C01000-0x0000000004C02000-memory.dmp