lucastealer | a90ca15d3c601ae18f82601cfa311ff92405877087ff5566b365799ba05466eb

Virtualization/Sandbox Evasion

T1497

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

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\SystemBiosVersion	Packet_Installer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Packet_Installer.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-1-5-21-2231940048-779848787-2990559741-1000\Control Panel\International\Geo\Nation	danger.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Control Panel\International\Geo\Nation	Packet_Installer.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
932	Packet_Installer.exe
2568	ProximityUxHost.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/files/0x0009000000022d7b-27.dat	themida
behavioral1/files/0x0009000000022d7b-33.dat	themida
behavioral1/files/0x0009000000022d7b-34.dat	themida
behavioral1/memory/932-86-0x00000000006E0000-0x0000000001666000-memory.dmp	themida
behavioral1/memory/932-87-0x00000000006E0000-0x0000000001666000-memory.dmp	themida

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\USER\S-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Packet_Installer = "C:\\Windows\\Packet_Installer.exe"	danger.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ProximityUxHost = "C:\\Windows\\ProximityUxHost.exe"	danger.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Packet_Installer = "C:\\ProgramData\\Packet_Installer.exe"	Packet_Installer.exe

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	Packet_Installer.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
20	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
3700	danger.exe
3700	danger.exe
932	Packet_Installer.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Packet_Installer.exe	danger.exe
File opened for modification	C:\Windows\Packet_Installer.exe	danger.exe
File created	C:\Windows\ProximityUxHost.exe	danger.exe
File opened for modification	C:\Windows\ProximityUxHost.exe	danger.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 3 IoCs

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

persistence

Scheduled Task/Job

pid	Process
1580	schtasks.exe
2808	schtasks.exe
4840	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
932	Packet_Installer.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
212	powershell.exe
212	powershell.exe
4568	powershell.exe
4568	powershell.exe
932	Packet_Installer.exe
932	Packet_Installer.exe
2320	powershell.exe
2320	powershell.exe
4732	powershell.exe
4732	powershell.exe
4412	powershell.exe
4412	powershell.exe
932	Packet_Installer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3700	danger.exe
Token: SeDebugPrivilege	212	powershell.exe
Token: SeDebugPrivilege	4568	powershell.exe
Token: SeDebugPrivilege	932	Packet_Installer.exe
Token: SeDebugPrivilege	2320	powershell.exe
Token: SeDebugPrivilege	4732	powershell.exe
Token: SeDebugPrivilege	4412	powershell.exe
Token: SeDebugPrivilege	932	Packet_Installer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
932	Packet_Installer.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3700 wrote to memory of 212	3700	danger.exe	92
PID 3700 wrote to memory of 212	3700	danger.exe	92
PID 3700 wrote to memory of 1580	3700	danger.exe	95
PID 3700 wrote to memory of 1580	3700	danger.exe	95
PID 3700 wrote to memory of 932	3700	danger.exe	97
PID 3700 wrote to memory of 932	3700	danger.exe	97
PID 3700 wrote to memory of 932	3700	danger.exe	97
PID 3700 wrote to memory of 4568	3700	danger.exe	98
PID 3700 wrote to memory of 4568	3700	danger.exe	98
PID 3700 wrote to memory of 2808	3700	danger.exe	101
PID 3700 wrote to memory of 2808	3700	danger.exe	101
PID 3700 wrote to memory of 2568	3700	danger.exe	103
PID 3700 wrote to memory of 2568	3700	danger.exe	103
PID 932 wrote to memory of 2320	932	Packet_Installer.exe	113
PID 932 wrote to memory of 2320	932	Packet_Installer.exe	113
PID 932 wrote to memory of 2320	932	Packet_Installer.exe	113
PID 932 wrote to memory of 4732	932	Packet_Installer.exe	116
PID 932 wrote to memory of 4732	932	Packet_Installer.exe	116
PID 932 wrote to memory of 4732	932	Packet_Installer.exe	116
PID 932 wrote to memory of 4412	932	Packet_Installer.exe	118
PID 932 wrote to memory of 4412	932	Packet_Installer.exe	118
PID 932 wrote to memory of 4412	932	Packet_Installer.exe	118
PID 932 wrote to memory of 4840	932	Packet_Installer.exe	120
PID 932 wrote to memory of 4840	932	Packet_Installer.exe	120
PID 932 wrote to memory of 4840	932	Packet_Installer.exe	120

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\danger.exe
"C:\Users\Admin\AppData\Local\Temp\danger.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3700
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Packet_Installer.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:212
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /F /TN "Packet_Installer" /SC ONLOGON /TR "C:\Windows\Packet_Installer.exe" /RL HIGHEST
  2⤵
  - Creates scheduled task(s)
  PID:1580
- C:\Windows\Packet_Installer.exe
  "C:\Windows\Packet_Installer.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:932
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Packet_Installer.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2320
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Packet_Installer.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4732
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\Packet_Installer.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4412
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Packet_Installer" /tr "C:\ProgramData\Packet_Installer.exe"
    3⤵
    - Creates scheduled task(s)
    PID:4840
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\ProximityUxHost.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4568
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /F /TN "ProximityUxHost" /SC ONLOGON /TR "C:\Windows\ProximityUxHost.exe" /RL HIGHEST
  2⤵
  - Creates scheduled task(s)
  PID:2808
- C:\Windows\ProximityUxHost.exe
  "C:\Windows\ProximityUxHost.exe"
  2⤵
  - Executes dropped EXE
  PID:2568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

T1497

Credential Access

Discovery

Query Registry

System Information Discovery