Analysis
- max time kernel
149s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
07/10/2026, 18:00
General
- Target 004911_MT103_001_rejection_000223346.vbs
- Size 64KB
- Sample261007-wllcksdx3m
- SHA256 36f6f8a754e37a09b84478de5df78b39be9776e1fe6d43b2272c077bd7937d98
Malware Config
Extracted
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Protocol
smtp
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Host
mail.holzbrenzii.com
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Port
587
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Username
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Password
boygirl123456
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.holzbrenzii.com
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Port
587
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Username
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Password
boygirl123456
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Email to
Signatures
- Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Family: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Badlisted process makes network request 17 IoCs
Network request originating from process or tool commonly abused by malware.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\004911_MT103_001_rejection_000223346.vbs"1⤵
- Badlisted process makes network request
- Checks computer location settings
- Executes a VBScript file via the Windows Script Host.
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /v:on /c echo ^%pebermens^% | !Jurisdiktionskompetance! -2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo %pebermens% "3⤵
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\??\c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe"c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe" -3⤵
- Badlisted process makes network request
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\backgroundtaskhost.exe"C:\Windows\SysWOW64\backgroundtaskhost.exe"4⤵
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C:\Windows\SysWOW64\backgroundtaskhost.exe"C:\Windows\SysWOW64\backgroundtaskhost.exe"4⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
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C:\Windows\SysWOW64\backgroundtaskhost.exe"C:\Windows\SysWOW64\backgroundtaskhost.exe"5⤵
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
1Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_vuxtkub1.dea.ps1
memory/3540-42-0x0000000020B00000-0x0000000020B0A000-memory.dmp
memory/3540-40-0x0000000020870000-0x000000002090C000-memory.dmp
memory/3540-39-0x00000000200D0000-0x0000000020120000-memory.dmp
memory/3540-38-0x0000000020730000-0x00000000207C2000-memory.dmp
memory/3540-37-0x0000000000AD0000-0x0000000000B14000-memory.dmp
memory/3540-36-0x0000000000AD0000-0x0000000001D24000-memory.dmp
memory/4068-24-0x00000000070A0000-0x00000000070BA000-memory.dmp
memory/4068-28-0x0000000002440000-0x0000000002450000-memory.dmp
memory/4068-19-0x0000000005D10000-0x0000000005D2E000-memory.dmp
memory/4068-20-0x0000000005D40000-0x0000000005D8C000-memory.dmp
memory/4068-21-0x0000000006270000-0x00000000062B4000-memory.dmp
memory/4068-22-0x0000000007000000-0x0000000007076000-memory.dmp
memory/4068-23-0x0000000007700000-0x0000000007D7A000-memory.dmp
memory/4068-4-0x0000000002440000-0x0000000002450000-memory.dmp
memory/4068-26-0x00000000071D0000-0x00000000071F2000-memory.dmp
memory/4068-25-0x0000000007230000-0x00000000072C6000-memory.dmp
memory/4068-27-0x0000000008330000-0x00000000088D4000-memory.dmp
memory/4068-18-0x0000000005730000-0x0000000005A84000-memory.dmp
memory/4068-30-0x0000000002440000-0x0000000002450000-memory.dmp
memory/4068-31-0x00000000076E0000-0x00000000076E2000-memory.dmp
memory/4068-33-0x0000000002440000-0x0000000002450000-memory.dmp
memory/4068-32-0x00000000088E0000-0x000000000B8B8000-memory.dmp
memory/4068-34-0x00000000088E0000-0x000000000B8B8000-memory.dmp
memory/4068-35-0x00000000088E0000-0x000000000B8B8000-memory.dmp
memory/4068-10-0x00000000056C0000-0x0000000005726000-memory.dmp
memory/4068-9-0x0000000005650000-0x00000000056B6000-memory.dmp
memory/4068-8-0x0000000004D70000-0x0000000004D92000-memory.dmp
memory/4068-7-0x0000000005020000-0x0000000005648000-memory.dmp
memory/4068-6-0x0000000002440000-0x0000000002450000-memory.dmp
memory/4068-5-0x00000000023D0000-0x0000000002406000-memory.dmp