Analysis
- max time kernel
144s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
22/01/2024, 14:07
General
- Target INVOICE.exe
- Size 811KB
- Sample240122-rey8msgdfp
- SHA256 8b44d22c62f8f7f749ed63a3ae1ea5068bdac5db4fbccec5635f47a6fd27dbde
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.southerngroup.co
-
Port
587
-
Username
-
Password
sougrp@2020#
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.southerngroup.co
-
Port
587
-
Username
-
Password
sougrp@2020#
-
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 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\zbvwgRnmZky.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zbvwgRnmZky" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1AC.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_3am14zkn.33v.ps1
tmpB1AC.tmp
memory/1672-58-0x0000000006F10000-0x0000000006F2A000-memory.dmp
memory/1672-19-0x0000000004DE0000-0x0000000005408000-memory.dmp
memory/1672-69-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/1672-66-0x0000000007230000-0x0000000007238000-memory.dmp
memory/1672-65-0x0000000007250000-0x000000000726A000-memory.dmp
memory/1672-64-0x0000000007150000-0x0000000007164000-memory.dmp
memory/1672-63-0x0000000007140000-0x000000000714E000-memory.dmp
memory/1672-35-0x0000000005650000-0x00000000059A4000-memory.dmp
memory/1672-61-0x0000000007110000-0x0000000007121000-memory.dmp
memory/1672-15-0x00000000022B0000-0x00000000022E6000-memory.dmp
memory/1672-16-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/1672-18-0x00000000047A0000-0x00000000047B0000-memory.dmp
memory/1672-17-0x00000000047A0000-0x00000000047B0000-memory.dmp
memory/1672-60-0x0000000007190000-0x0000000007226000-memory.dmp
memory/1672-59-0x0000000006F80000-0x0000000006F8A000-memory.dmp
memory/1672-28-0x0000000005500000-0x0000000005566000-memory.dmp
memory/1672-57-0x0000000007550000-0x0000000007BCA000-memory.dmp
memory/1672-24-0x0000000004C20000-0x0000000004C42000-memory.dmp
memory/1672-56-0x0000000006C20000-0x0000000006CC3000-memory.dmp
memory/1672-55-0x0000000006150000-0x000000000616E000-memory.dmp
memory/1672-45-0x0000000070300000-0x000000007034C000-memory.dmp
memory/1672-44-0x0000000006230000-0x0000000006262000-memory.dmp
memory/1672-43-0x000000007F4D0000-0x000000007F4E0000-memory.dmp
memory/1672-42-0x00000000047A0000-0x00000000047B0000-memory.dmp
memory/1672-41-0x0000000006170000-0x00000000061BC000-memory.dmp
memory/1672-40-0x0000000005C10000-0x0000000005C2E000-memory.dmp
memory/4200-20-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/4200-8-0x0000000005C00000-0x0000000005C0C000-memory.dmp
memory/4200-3-0x0000000005A30000-0x0000000005AC2000-memory.dmp
memory/4200-1-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/4200-4-0x0000000005C20000-0x0000000005C30000-memory.dmp
memory/4200-26-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/4200-5-0x0000000005AD0000-0x0000000005ADA000-memory.dmp
memory/4200-6-0x0000000005BC0000-0x0000000005BD4000-memory.dmp
memory/4200-7-0x0000000005BF0000-0x0000000005BF8000-memory.dmp
memory/4200-0-0x0000000000F60000-0x0000000001032000-memory.dmp
memory/4200-9-0x0000000006D70000-0x0000000006DEA000-memory.dmp
memory/4200-2-0x0000000005F40000-0x00000000064E4000-memory.dmp
memory/4200-10-0x000000000A8D0000-0x000000000A96C000-memory.dmp
memory/5048-29-0x00000000051D0000-0x0000000005236000-memory.dmp
memory/5048-62-0x0000000006B10000-0x0000000006B60000-memory.dmp
memory/5048-22-0x0000000000400000-0x0000000000440000-memory.dmp
memory/5048-25-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/5048-27-0x0000000005390000-0x00000000053A0000-memory.dmp
memory/5048-70-0x00000000745F0000-0x0000000074DA0000-memory.dmp
memory/5048-71-0x0000000005390000-0x00000000053A0000-memory.dmp