blustealer | 946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	New_Inquiry.scr.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	New_Inquiry.scr.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	New_Inquiry.scr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	New_Inquiry.scr.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	New_Inquiry.scr.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.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
52	icanhazip.com

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	New_Inquiry.scr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	New_Inquiry.scr.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1080 set thread context of 3252	1080	New_Inquiry.scr.exe	92
PID 3252 set thread context of 3840	3252	New_Inquiry.scr.exe	93

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

System Information Discovery
T1082

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe

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

pid	Process
1900	schtasks.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
1080	New_Inquiry.scr.exe
2760	powershell.exe
2760	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3252	New_Inquiry.scr.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1080	New_Inquiry.scr.exe
Token: SeDebugPrivilege	2760	powershell.exe
Token: SeDebugPrivilege	3840	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3252	New_Inquiry.scr.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 2760	1080	New_Inquiry.scr.exe	88
PID 1080 wrote to memory of 2760	1080	New_Inquiry.scr.exe	88
PID 1080 wrote to memory of 2760	1080	New_Inquiry.scr.exe	88
PID 1080 wrote to memory of 1900	1080	New_Inquiry.scr.exe	90
PID 1080 wrote to memory of 1900	1080	New_Inquiry.scr.exe	90
PID 1080 wrote to memory of 1900	1080	New_Inquiry.scr.exe	90
PID 1080 wrote to memory of 3252	1080	New_Inquiry.scr.exe	92
PID 1080 wrote to memory of 3252	1080	New_Inquiry.scr.exe	92
PID 1080 wrote to memory of 3252	1080	New_Inquiry.scr.exe	92
PID 1080 wrote to memory of 3252	1080	New_Inquiry.scr.exe	92
PID 1080 wrote to memory of 3252	1080	New_Inquiry.scr.exe	92
PID 1080 wrote to memory of 3252	1080	New_Inquiry.scr.exe	92
PID 1080 wrote to memory of 3252	1080	New_Inquiry.scr.exe	92
PID 1080 wrote to memory of 3252	1080	New_Inquiry.scr.exe	92
PID 3252 wrote to memory of 3840	3252	New_Inquiry.scr.exe	93
PID 3252 wrote to memory of 3840	3252	New_Inquiry.scr.exe	93
PID 3252 wrote to memory of 3840	3252	New_Inquiry.scr.exe	93
PID 3252 wrote to memory of 3840	3252	New_Inquiry.scr.exe	93
PID 3252 wrote to memory of 3840	3252	New_Inquiry.scr.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\New_Inquiry.scr.exe
"C:\Users\Admin\AppData\Local\Temp\New_Inquiry.scr.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TJbEKIo.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2760
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TJbEKIo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp537A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1900
- C:\Users\Admin\AppData\Local\Temp\New_Inquiry.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\New_Inquiry.scr.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3252
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:3840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

5

Virtualization/Sandbox Evasion

2

Lateral Movement

Collection

Email Collection