Analysis
- max time kernel
107s - max time network
114s - platform
windows7_x64 - resource
win7 - submitted
27/08/2020, 05:40
General
- Target PO.exe
- Size 672KB
- Sample200827-dn8lfge6c2
- SHA256 4c0ba445450f16973c204aaab8265d888df2d38f822fbfcdf15249fbc3863356
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
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Username
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Password
Thegame1
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
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO.exe"C:\Users\Admin\AppData\Local\Temp\PO.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\NcgSKXJTiw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC467.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\PO.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1460-0-0x00000000738C0000-0x0000000073FAE000-memory.dmp
memory/1460-1-0x0000000000C50000-0x0000000000C51000-memory.dmp
memory/1460-3-0x00000000001E0000-0x00000000001E7000-memory.dmp
memory/1460-4-0x0000000004BB0000-0x0000000004C39000-memory.dmp
memory/1460-5-0x0000000005750000-0x00000000057CA000-memory.dmp
memory/1528-9-0x0000000000400000-0x0000000000466000-memory.dmp
memory/1528-12-0x0000000000400000-0x0000000000466000-memory.dmp
memory/1528-11-0x0000000000400000-0x0000000000466000-memory.dmp
memory/1528-14-0x00000000738C0000-0x0000000073FAE000-memory.dmp