Analysis
- max time kernel
114s - max time network
118s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
30/04/2024, 09:24
General
- Target CONTRACT DETAILS-73649000000000000000.exe
- Size 693KB
- Sample240430-lc2cbsha38
- SHA256 6a73ce1fbde07e660aa6713b7e1c20cc34aa6f576d82f2189da9661abaa5211f
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.starmech.net
-
Port
587
-
Username
-
Password
nics123
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.starmech.net
-
Port
587
-
Username
-
Password
nics123
-
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 WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- Adds Run key to start application 2 TTPs 1 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).
- 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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\CONTRACT DETAILS-73649000000000000000.exe"C:\Users\Admin\AppData\Local\Temp\CONTRACT DETAILS-73649000000000000000.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\Local\Temp\CONTRACT DETAILS-73649000000000000000.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HixkGtPEWur.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HixkGtPEWur" /XML "C:\Users\Admin\AppData\Local\Temp\tmp60DD.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\CONTRACT DETAILS-73649000000000000000.exe"C:\Users\Admin\AppData\Local\Temp\CONTRACT DETAILS-73649000000000000000.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\CONTRACT DETAILS-73649000000000000000.exe"C:\Users\Admin\AppData\Local\Temp\CONTRACT DETAILS-73649000000000000000.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_upskdqhu.ofl.ps1
tmp60DD.tmp
memory/4108-11-0x00000000093F0000-0x000000000948C000-memory.dmp
memory/4108-2-0x0000000005AA0000-0x0000000006044000-memory.dmp
memory/4108-4-0x0000000006050000-0x00000000063A4000-memory.dmp
memory/4108-5-0x0000000005780000-0x0000000005790000-memory.dmp
memory/4108-6-0x00000000057E0000-0x00000000057EA000-memory.dmp
memory/4108-7-0x0000000005940000-0x0000000005958000-memory.dmp
memory/4108-8-0x0000000005A90000-0x0000000005A9E000-memory.dmp
memory/4108-9-0x0000000006BB0000-0x0000000006BC6000-memory.dmp
memory/4108-10-0x0000000006C30000-0x0000000006CB4000-memory.dmp
memory/4108-0-0x0000000000BD0000-0x0000000000C84000-memory.dmp
memory/4108-1-0x00000000746C0000-0x0000000074E70000-memory.dmp
memory/4108-48-0x00000000746C0000-0x0000000074E70000-memory.dmp
memory/4108-3-0x0000000005590000-0x0000000005622000-memory.dmp
memory/4460-64-0x0000000074F20000-0x0000000074F6C000-memory.dmp
memory/4460-77-0x0000000007820000-0x00000000078B6000-memory.dmp
memory/4460-86-0x00000000746C0000-0x0000000074E70000-memory.dmp
memory/4460-80-0x00000000077E0000-0x00000000077F4000-memory.dmp
memory/4460-24-0x00000000746C0000-0x0000000074E70000-memory.dmp
memory/4460-79-0x00000000077D0000-0x00000000077DE000-memory.dmp
memory/4460-78-0x00000000077A0000-0x00000000077B1000-memory.dmp
memory/4460-36-0x0000000005010000-0x0000000005020000-memory.dmp
memory/4460-35-0x0000000005010000-0x0000000005020000-memory.dmp
memory/4700-88-0x0000000006CD0000-0x0000000006D20000-memory.dmp
memory/4700-46-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4716-18-0x00000000048C0000-0x00000000048D0000-memory.dmp
memory/4716-75-0x0000000006E30000-0x0000000006E4A000-memory.dmp
memory/4716-49-0x0000000005B00000-0x0000000005B1E000-memory.dmp
memory/4716-52-0x0000000074F20000-0x0000000074F6C000-memory.dmp
memory/4716-51-0x00000000060D0000-0x0000000006102000-memory.dmp
memory/4716-62-0x00000000060B0000-0x00000000060CE000-memory.dmp
memory/4716-63-0x0000000006CD0000-0x0000000006D73000-memory.dmp
memory/4716-19-0x00000000048C0000-0x00000000048D0000-memory.dmp
memory/4716-74-0x0000000007470000-0x0000000007AEA000-memory.dmp
memory/4716-50-0x0000000005B40000-0x0000000005B8C000-memory.dmp
memory/4716-76-0x0000000006EA0000-0x0000000006EAA000-memory.dmp
memory/4716-17-0x00000000746C0000-0x0000000074E70000-memory.dmp
memory/4716-20-0x0000000004F00000-0x0000000005528000-memory.dmp
memory/4716-16-0x00000000009C0000-0x00000000009F6000-memory.dmp
memory/4716-22-0x0000000004CE0000-0x0000000004D46000-memory.dmp
memory/4716-81-0x0000000007170000-0x000000000718A000-memory.dmp
memory/4716-82-0x0000000007150000-0x0000000007158000-memory.dmp
memory/4716-85-0x00000000746C0000-0x0000000074E70000-memory.dmp
memory/4716-23-0x0000000004D50000-0x0000000004DB6000-memory.dmp
memory/4716-21-0x0000000004B40000-0x0000000004B62000-memory.dmp