Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
03/06/2024, 09:50
General
- Target document.exe
- Size 679KB
- Sample240603-ltyb1aae61
- SHA256 8054c765c0425811e3632409c6bbd9149fde1de08593796957ca55ead7e9e683
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
phoenixblowers.com
-
Port
587
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Username
-
Password
Officeback@2022#
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\document.exe"C:\Users\Admin\AppData\Local\Temp\document.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZAZphYTyWlIUJ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZAZphYTyWlIUJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9CEC.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_ilwcd2jk.01k.ps1
tmp9CEC.tmp
memory/656-6-0x0000000004BB0000-0x0000000004BC8000-memory.dmp
memory/656-3-0x00000000049D0000-0x0000000004A62000-memory.dmp
memory/656-4-0x0000000004980000-0x000000000498A000-memory.dmp
memory/656-5-0x00000000743C0000-0x0000000074B70000-memory.dmp
memory/656-2-0x0000000004EE0000-0x0000000005484000-memory.dmp
memory/656-7-0x0000000004BE0000-0x0000000004BF0000-memory.dmp
memory/656-8-0x0000000007680000-0x0000000007702000-memory.dmp
memory/656-9-0x0000000009DE0000-0x0000000009E7C000-memory.dmp
memory/656-38-0x00000000743C0000-0x0000000074B70000-memory.dmp
memory/656-0-0x00000000743CE000-0x00000000743CF000-memory.dmp
memory/656-1-0x0000000000010000-0x00000000000C0000-memory.dmp
memory/1440-23-0x00000000056D0000-0x0000000005A24000-memory.dmp
memory/1440-50-0x0000000006C50000-0x0000000006C6E000-memory.dmp
memory/1440-19-0x0000000004BE0000-0x0000000004C02000-memory.dmp
memory/1440-21-0x0000000004E30000-0x0000000004E96000-memory.dmp
memory/1440-20-0x0000000004C90000-0x0000000004CF6000-memory.dmp
memory/1440-16-0x0000000004EA0000-0x00000000054C8000-memory.dmp
memory/1440-64-0x00000000743C0000-0x0000000074B70000-memory.dmp
memory/1440-15-0x00000000743C0000-0x0000000074B70000-memory.dmp
memory/1440-22-0x00000000743C0000-0x0000000074B70000-memory.dmp
memory/1440-60-0x00000000072E0000-0x00000000072E8000-memory.dmp
memory/1440-36-0x0000000005C90000-0x0000000005CAE000-memory.dmp
memory/1440-14-0x00000000046C0000-0x00000000046F6000-memory.dmp
memory/1440-37-0x0000000005D40000-0x0000000005D8C000-memory.dmp
memory/1440-40-0x000000006F310000-0x000000006F35C000-memory.dmp
memory/1440-39-0x0000000006C10000-0x0000000006C42000-memory.dmp
memory/1440-17-0x00000000743C0000-0x0000000074B70000-memory.dmp
memory/1440-51-0x0000000006C80000-0x0000000006D23000-memory.dmp
memory/1440-52-0x0000000007600000-0x0000000007C7A000-memory.dmp
memory/1440-53-0x0000000006FC0000-0x0000000006FDA000-memory.dmp
memory/1440-54-0x0000000007030000-0x000000000703A000-memory.dmp
memory/1440-55-0x0000000007240000-0x00000000072D6000-memory.dmp
memory/1440-56-0x00000000071C0000-0x00000000071D1000-memory.dmp
memory/1440-57-0x00000000071F0000-0x00000000071FE000-memory.dmp
memory/1440-58-0x0000000007200000-0x0000000007214000-memory.dmp
memory/1440-59-0x0000000007300000-0x000000000731A000-memory.dmp
memory/4068-34-0x00000000743C0000-0x0000000074B70000-memory.dmp
memory/4068-61-0x0000000006960000-0x00000000069B0000-memory.dmp
memory/4068-29-0x0000000000400000-0x0000000000440000-memory.dmp
memory/4068-65-0x00000000743C0000-0x0000000074B70000-memory.dmp