Analysis
- max time kernel
150s - max time network
138s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:43
General
- Target pricelists and offer.exe
- Size 510KB
- Sample201109-19dmbcj36j
- SHA256 1cfd5099c6a8bf03aea60b09f4e7b829eadfcc1c0cc55f2c8bfbae01c03e56e2
Malware Config
Extracted
-
agenttesla
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Protocol
smtp
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Host
smtp.yandex.com
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Port
587
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Username
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Password
enugu042
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\pricelists and offer.exe"C:\Users\Admin\AppData\Local\Temp\pricelists and offer.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NqGTGSszlOq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEBAE.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\pricelists and offer.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/672-5-0x0000000007650000-0x000000000765C000-memory.dmp
memory/672-1-0x0000000000550000-0x0000000000551000-memory.dmp
memory/672-0-0x0000000073FF0000-0x00000000746DE000-memory.dmp
memory/672-6-0x00000000077C0000-0x00000000077C1000-memory.dmp
memory/672-7-0x00000000080A0000-0x00000000080F3000-memory.dmp
memory/672-3-0x0000000007AA0000-0x0000000007AA1000-memory.dmp
memory/672-4-0x0000000007680000-0x0000000007681000-memory.dmp
memory/2608-10-0x0000000000400000-0x0000000000452000-memory.dmp
memory/2608-13-0x0000000073FF0000-0x00000000746DE000-memory.dmp
memory/2608-18-0x00000000058C0000-0x00000000058C1000-memory.dmp
memory/2608-19-0x0000000006380000-0x0000000006381000-memory.dmp
memory/2608-22-0x0000000006CC0000-0x0000000006CC1000-memory.dmp