amadey | 863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorha.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
6	1752	rundll32.exe
11	1624	rundll32.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1468	powershell.exe
2988	powershell.exe
800	powershell.exe
2592	powershell.exe
2416	powershell.exe
1264	powershell.exe
1664	powershell.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorha.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorha.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	1235.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	1235.exe

Executes dropped EXE 6 IoCs

pid	Process
2600	explorha.exe
2696	khxf80t6conphyb.exe
1104	456.exe
1276	1235.exe
832	XClient.exe
1932	XClient.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Wine	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe
Key opened	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Wine	explorha.exe

Loads dropped DLL 16 IoCs

pid	Process
2896	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe
2600	explorha.exe
1760	rundll32.exe
1760	rundll32.exe
1760	rundll32.exe
1760	rundll32.exe
1752	rundll32.exe
1752	rundll32.exe
1752	rundll32.exe
1752	rundll32.exe
304	MSBuild.exe
304	MSBuild.exe
1624	rundll32.exe
1624	rundll32.exe
1624	rundll32.exe
1624	rundll32.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	1235.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2896	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe
2600	explorha.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 304	2696	khxf80t6conphyb.exe	43

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorha.job	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

pid	Process
536	schtasks.exe
2724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2896	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe
2600	explorha.exe
1752	rundll32.exe
1752	rundll32.exe
1752	rundll32.exe
1752	rundll32.exe
1752	rundll32.exe
1468	powershell.exe
2696	khxf80t6conphyb.exe
1264	powershell.exe
2416	powershell.exe
2696	khxf80t6conphyb.exe
1664	powershell.exe
1104	456.exe
2988	powershell.exe
800	powershell.exe
2592	powershell.exe
1276	1235.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeDebugPrivilege	1468	powershell.exe
Token: SeDebugPrivilege	2696	khxf80t6conphyb.exe
Token: SeDebugPrivilege	1264	powershell.exe
Token: SeDebugPrivilege	2416	powershell.exe
Token: SeDebugPrivilege	1276	1235.exe
Token: SeDebugPrivilege	1664	powershell.exe
Token: SeDebugPrivilege	1104	456.exe
Token: SeDebugPrivilege	1104	456.exe
Token: SeDebugPrivilege	2988	powershell.exe
Token: SeDebugPrivilege	800	powershell.exe
Token: SeDebugPrivilege	2592	powershell.exe
Token: SeDebugPrivilege	1276	1235.exe
Token: SeDebugPrivilege	832	XClient.exe
Token: SeDebugPrivilege	1932	XClient.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2896	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1104	456.exe
1276	1235.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2600	2896	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe	28
PID 2896 wrote to memory of 2600	2896	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe	28
PID 2896 wrote to memory of 2600	2896	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe	28
PID 2896 wrote to memory of 2600	2896	863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe	28
PID 2600 wrote to memory of 2696	2600	explorha.exe	29
PID 2600 wrote to memory of 2696	2600	explorha.exe	29
PID 2600 wrote to memory of 2696	2600	explorha.exe	29
PID 2600 wrote to memory of 2696	2600	explorha.exe	29
PID 2600 wrote to memory of 1760	2600	explorha.exe	31
PID 2600 wrote to memory of 1760	2600	explorha.exe	31
PID 2600 wrote to memory of 1760	2600	explorha.exe	31
PID 2600 wrote to memory of 1760	2600	explorha.exe	31
PID 2600 wrote to memory of 1760	2600	explorha.exe	31
PID 2600 wrote to memory of 1760	2600	explorha.exe	31
PID 2600 wrote to memory of 1760	2600	explorha.exe	31
PID 1760 wrote to memory of 1752	1760	rundll32.exe	32
PID 1760 wrote to memory of 1752	1760	rundll32.exe	32
PID 1760 wrote to memory of 1752	1760	rundll32.exe	32
PID 1760 wrote to memory of 1752	1760	rundll32.exe	32
PID 1752 wrote to memory of 328	1752	rundll32.exe	33
PID 1752 wrote to memory of 328	1752	rundll32.exe	33
PID 1752 wrote to memory of 328	1752	rundll32.exe	33
PID 1752 wrote to memory of 1468	1752	rundll32.exe	35
PID 1752 wrote to memory of 1468	1752	rundll32.exe	35
PID 1752 wrote to memory of 1468	1752	rundll32.exe	35
PID 2696 wrote to memory of 2416	2696	khxf80t6conphyb.exe	37
PID 2696 wrote to memory of 2416	2696	khxf80t6conphyb.exe	37
PID 2696 wrote to memory of 2416	2696	khxf80t6conphyb.exe	37
PID 2696 wrote to memory of 2416	2696	khxf80t6conphyb.exe	37
PID 2696 wrote to memory of 1264	2696	khxf80t6conphyb.exe	39
PID 2696 wrote to memory of 1264	2696	khxf80t6conphyb.exe	39
PID 2696 wrote to memory of 1264	2696	khxf80t6conphyb.exe	39
PID 2696 wrote to memory of 1264	2696	khxf80t6conphyb.exe	39
PID 2696 wrote to memory of 536	2696	khxf80t6conphyb.exe	40
PID 2696 wrote to memory of 536	2696	khxf80t6conphyb.exe	40
PID 2696 wrote to memory of 536	2696	khxf80t6conphyb.exe	40
PID 2696 wrote to memory of 536	2696	khxf80t6conphyb.exe	40
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 2696 wrote to memory of 304	2696	khxf80t6conphyb.exe	43
PID 304 wrote to memory of 1104	304	MSBuild.exe	44
PID 304 wrote to memory of 1104	304	MSBuild.exe	44
PID 304 wrote to memory of 1104	304	MSBuild.exe	44
PID 304 wrote to memory of 1104	304	MSBuild.exe	44
PID 304 wrote to memory of 1276	304	MSBuild.exe	45
PID 304 wrote to memory of 1276	304	MSBuild.exe	45
PID 304 wrote to memory of 1276	304	MSBuild.exe	45
PID 304 wrote to memory of 1276	304	MSBuild.exe	45
PID 1276 wrote to memory of 1664	1276	1235.exe	46
PID 1276 wrote to memory of 1664	1276	1235.exe	46
PID 1276 wrote to memory of 1664	1276	1235.exe	46
PID 1276 wrote to memory of 2988	1276	1235.exe	48
PID 1276 wrote to memory of 2988	1276	1235.exe	48
PID 1276 wrote to memory of 2988	1276	1235.exe	48
PID 1276 wrote to memory of 800	1276	1235.exe	50
PID 1276 wrote to memory of 800	1276	1235.exe	50
PID 1276 wrote to memory of 800	1276	1235.exe	50
PID 1276 wrote to memory of 2592	1276	1235.exe	52

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe
"C:\Users\Admin\AppData\Local\Temp\863f7d8977770a3205032aaae73ced8918610e914645d62df45ab0c2a7d05075.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
  "C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Users\Admin\AppData\Local\Temp\1000084001\khxf80t6conphyb.exe
    "C:\Users\Admin\AppData\Local\Temp\1000084001\khxf80t6conphyb.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2696
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\1000084001\khxf80t6conphyb.exe"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2416
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AAkXVY.exe"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1264
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AAkXVY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5A8E.tmp"
      4⤵
      Creates scheduled task(s)
      PID:536
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:304
    - - C:\Users\Admin\AppData\Roaming\456.exe
        
        "C:\Users\Admin\AppData\Roaming\456.exe"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1104
    - - C:\Users\Admin\AppData\Roaming\1235.exe
        
        "C:\Users\Admin\AppData\Roaming\1235.exe"
        5⤵
        Drops startup file
        Executes dropped EXE
        Adds Run key to start application
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1276
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\1235.exe'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1664
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '1235.exe'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2988
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:800
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2592
      - C:\Windows\System32\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
        6⤵
        Creates scheduled task(s)
        
        PID:2724
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:1760
  - - C:\Windows\system32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1752
    - - C:\Windows\system32\netsh.exe
        
        netsh wlan show profiles
        5⤵
        
        PID:328
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\248906074286_Desktop.zip' -CompressionLevel Optimal
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1468
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\clip64.dll, Main
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    PID:1624

C:\Windows\system32\taskeng.exe
taskeng.exe {F111B549-60C8-47B0-88F1-229F6DCD075B} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]
1⤵
PID:448
- C:\Users\Admin\AppData\Roaming\XClient.exe
  C:\Users\Admin\AppData\Roaming\XClient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:832
- C:\Users\Admin\AppData\Roaming\XClient.exe
  C:\Users\Admin\AppData\Roaming\XClient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

System Information Discovery

T1082

Virtualization/Sandbox Evasion