Analysis
- max time kernel
143s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
15/01/2024, 14:07
General
- Target Draft_Bill Ladden.exe
- Size 770KB
- Sample240115-rezjeahbhm
- SHA256 435a9413255eab9eb0aa6c6439dfabdecc47785eec10aaf9a59a0619cb564cff
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.topcats.com
-
Port
587
-
Username
-
Password
SpurS21?
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.topcats.com
-
Port
587
-
Username
-
Password
SpurS21?
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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.
- Looks up external IP address via web service 1 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).
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Draft_Bill Ladden.exe"C:\Users\Admin\AppData\Local\Temp\Draft_Bill Ladden.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aFHQwIwElFu.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aFHQwIwElFu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBFB6.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Draft_Bill Ladden.exe"C:\Users\Admin\AppData\Local\Temp\Draft_Bill Ladden.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_nlq43ce5.ql0.ps1
tmpBFB6.tmp
memory/1152-72-0x00000000056B0000-0x00000000056C0000-memory.dmp
memory/1152-71-0x0000000074AD0000-0x0000000075280000-memory.dmp
memory/1152-62-0x0000000006C10000-0x0000000006C60000-memory.dmp
memory/1152-37-0x00000000056B0000-0x00000000056C0000-memory.dmp
memory/1152-36-0x0000000074AD0000-0x0000000075280000-memory.dmp
memory/1152-23-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2508-58-0x0000000007CB0000-0x000000000832A000-memory.dmp
memory/2508-61-0x00000000078E0000-0x0000000007976000-memory.dmp
memory/2508-70-0x0000000074AD0000-0x0000000075280000-memory.dmp
memory/2508-15-0x0000000002A40000-0x0000000002A76000-memory.dmp
memory/2508-67-0x0000000007980000-0x0000000007988000-memory.dmp
memory/2508-17-0x0000000074AD0000-0x0000000075280000-memory.dmp
memory/2508-66-0x00000000079A0000-0x00000000079BA000-memory.dmp
memory/2508-65-0x00000000078A0000-0x00000000078B4000-memory.dmp
memory/2508-19-0x0000000002AA0000-0x0000000002AB0000-memory.dmp
memory/2508-21-0x0000000002AA0000-0x0000000002AB0000-memory.dmp
memory/2508-18-0x0000000005520000-0x0000000005B48000-memory.dmp
memory/2508-64-0x0000000007890000-0x000000000789E000-memory.dmp
memory/2508-63-0x0000000007860000-0x0000000007871000-memory.dmp
memory/2508-24-0x0000000005480000-0x00000000054A2000-memory.dmp
memory/2508-60-0x00000000076E0000-0x00000000076EA000-memory.dmp
memory/2508-59-0x0000000007660000-0x000000000767A000-memory.dmp
memory/2508-38-0x0000000005D90000-0x0000000005DF6000-memory.dmp
memory/2508-39-0x0000000005E50000-0x0000000005EB6000-memory.dmp
memory/2508-44-0x000000007FD00000-0x000000007FD10000-memory.dmp
memory/2508-40-0x0000000005EC0000-0x0000000006214000-memory.dmp
memory/2508-41-0x0000000006340000-0x000000000635E000-memory.dmp
memory/2508-42-0x00000000063E0000-0x000000000642C000-memory.dmp
memory/2508-43-0x0000000002AA0000-0x0000000002AB0000-memory.dmp
memory/2508-56-0x0000000006900000-0x000000000691E000-memory.dmp
memory/2508-46-0x0000000070E40000-0x0000000070E8C000-memory.dmp
memory/2508-45-0x0000000007310000-0x0000000007342000-memory.dmp
memory/2508-57-0x0000000007550000-0x00000000075F3000-memory.dmp
memory/3272-3-0x0000000005960000-0x00000000059F2000-memory.dmp
memory/3272-2-0x0000000005E70000-0x0000000006414000-memory.dmp
memory/3272-5-0x0000000005900000-0x000000000590A000-memory.dmp
memory/3272-35-0x0000000074AD0000-0x0000000075280000-memory.dmp
memory/3272-9-0x000000000E180000-0x000000000E1FC000-memory.dmp
memory/3272-6-0x0000000006E40000-0x0000000006E60000-memory.dmp
memory/3272-22-0x0000000005B90000-0x0000000005BA0000-memory.dmp
memory/3272-4-0x0000000005B90000-0x0000000005BA0000-memory.dmp
memory/3272-0-0x0000000000E70000-0x0000000000F36000-memory.dmp
memory/3272-8-0x0000000006EE0000-0x0000000006EEE000-memory.dmp
memory/3272-16-0x0000000074AD0000-0x0000000075280000-memory.dmp
memory/3272-10-0x00000000119B0000-0x0000000011A4C000-memory.dmp
memory/3272-7-0x0000000006ED0000-0x0000000006EDA000-memory.dmp
memory/3272-1-0x0000000074AD0000-0x0000000075280000-memory.dmp