Analysis
- max time kernel
49s - max time network
146s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
30/03/2023, 13:09
General
- Target New PO #23546738.exe
- Size 707KB
- Sample230330-qdr79sec2x
- SHA256 0a8368bab522deb622eca5805bc7bc6da0d4a6a63fae959c41c22c7d0b5ffa63
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
olu chu kwu 554
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\New PO #23546738.exe"C:\Users\Admin\AppData\Local\Temp\New PO #23546738.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\YJmfGxcN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp696.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\New PO #23546738.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp696.tmp
memory/996-68-0x0000000000400000-0x0000000000430000-memory.dmp
memory/996-64-0x0000000000400000-0x0000000000430000-memory.dmp
memory/996-91-0x0000000004D60000-0x0000000004DA0000-memory.dmp
memory/996-73-0x0000000004D60000-0x0000000004DA0000-memory.dmp
memory/996-72-0x0000000000400000-0x0000000000430000-memory.dmp
memory/996-70-0x0000000000400000-0x0000000000430000-memory.dmp
memory/996-63-0x0000000000400000-0x0000000000430000-memory.dmp
memory/996-66-0x0000000000400000-0x0000000000430000-memory.dmp
memory/996-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/996-65-0x0000000000400000-0x0000000000430000-memory.dmp
memory/1740-56-0x0000000000280000-0x000000000028C000-memory.dmp
memory/1740-54-0x0000000000290000-0x0000000000346000-memory.dmp
memory/1740-55-0x0000000000BC0000-0x0000000000C00000-memory.dmp
memory/1740-59-0x0000000004750000-0x0000000004780000-memory.dmp
memory/1740-58-0x00000000051B0000-0x000000000522C000-memory.dmp
memory/1740-57-0x0000000000BC0000-0x0000000000C00000-memory.dmp