Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
31/05/2024, 18:41
General
- Target inquiry EBS# 82785.exe
- Size 670KB
- Sample240531-xbrbhsaa23
- SHA256 4f6463b100f7812cc3d70de6abf38bd48290132ed93bc275fcedc5ef7571ff59
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
phoenixblowers.com
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Port
587
-
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
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C:\Users\Admin\AppData\Local\Temp\inquiry EBS# 82785.exe"C:\Users\Admin\AppData\Local\Temp\inquiry EBS# 82785.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\WUmtniUl.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WUmtniUl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79B4.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_iq3f3bca.agc.ps1
tmp79B4.tmp
memory/652-17-0x0000000005490000-0x0000000005AB8000-memory.dmp
memory/652-53-0x0000000007CE0000-0x000000000835A000-memory.dmp
memory/652-60-0x00000000078E0000-0x00000000078F4000-memory.dmp
memory/652-59-0x00000000078D0000-0x00000000078DE000-memory.dmp
memory/652-57-0x00000000078A0000-0x00000000078B1000-memory.dmp
memory/652-56-0x0000000007920000-0x00000000079B6000-memory.dmp
memory/652-55-0x0000000007710000-0x000000000771A000-memory.dmp
memory/652-62-0x00000000079C0000-0x00000000079C8000-memory.dmp
memory/652-16-0x00000000747D0000-0x0000000074F80000-memory.dmp
memory/652-15-0x0000000004DA0000-0x0000000004DD6000-memory.dmp
memory/652-61-0x00000000079E0000-0x00000000079FA000-memory.dmp
memory/652-38-0x0000000006370000-0x000000000638E000-memory.dmp
memory/652-54-0x00000000076A0000-0x00000000076BA000-memory.dmp
memory/652-19-0x00000000747D0000-0x0000000074F80000-memory.dmp
memory/652-52-0x0000000007560000-0x0000000007603000-memory.dmp
memory/652-51-0x0000000006960000-0x000000000697E000-memory.dmp
memory/652-41-0x0000000070450000-0x000000007049C000-memory.dmp
memory/652-40-0x0000000007520000-0x0000000007552000-memory.dmp
memory/652-39-0x00000000063B0000-0x00000000063FC000-memory.dmp
memory/652-25-0x0000000005BF0000-0x0000000005C12000-memory.dmp
memory/652-65-0x00000000747D0000-0x0000000074F80000-memory.dmp
memory/652-32-0x0000000005CA0000-0x0000000005D06000-memory.dmp
memory/652-37-0x0000000005E80000-0x00000000061D4000-memory.dmp
memory/1412-26-0x00000000747D0000-0x0000000074F80000-memory.dmp
memory/1412-58-0x0000000006C50000-0x0000000006CA0000-memory.dmp
memory/1412-24-0x0000000005810000-0x0000000005876000-memory.dmp
memory/1412-22-0x00000000747D0000-0x0000000074F80000-memory.dmp
memory/1412-66-0x00000000747D0000-0x0000000074F80000-memory.dmp
memory/1412-20-0x0000000000400000-0x0000000000440000-memory.dmp
memory/3004-7-0x0000000005970000-0x000000000597E000-memory.dmp
memory/3004-9-0x0000000006260000-0x00000000062E2000-memory.dmp
memory/3004-8-0x0000000005980000-0x0000000005990000-memory.dmp
memory/3004-0-0x00000000747DE000-0x00000000747DF000-memory.dmp
memory/3004-6-0x0000000005870000-0x0000000005886000-memory.dmp
memory/3004-10-0x0000000008870000-0x000000000890C000-memory.dmp
memory/3004-5-0x00000000747D0000-0x0000000074F80000-memory.dmp
memory/3004-4-0x0000000005850000-0x000000000585A000-memory.dmp
memory/3004-3-0x00000000057A0000-0x0000000005832000-memory.dmp
memory/3004-2-0x0000000005CB0000-0x0000000006254000-memory.dmp
memory/3004-1-0x0000000000D50000-0x0000000000DFE000-memory.dmp
memory/3004-23-0x00000000747D0000-0x0000000074F80000-memory.dmp