hawkeye | deaf6d25727a36f23af6d2f63ef493ef2d595f300b2c970de34ab7726fd5e82c

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	Windows Update.exe

NirSoft MailPassView 5 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2052-143-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral2/memory/1564-178-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/1564-181-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/1564-182-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/1564-184-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 5 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2052-143-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral2/memory/1980-188-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral2/memory/1980-190-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral2/memory/1980-191-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral2/memory/1980-198-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView

Nirsoft 9 IoCs

resource	yara_rule
behavioral2/memory/2052-143-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral2/memory/1564-178-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/1564-181-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/1564-182-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/1564-184-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/1980-188-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral2/memory/1980-190-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral2/memory/1980-191-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral2/memory/1980-198-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft

Looks for VMWare Tools registry key 2 TTPs 2 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	Windows Update.exe

Checks BIOS information in registry 2 TTPs 4 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	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Windows Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Windows Update.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-1-5-21-1043950675-1972537973-2972532878-1000\Control Panel\International\Geo\Nation	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe

Executes dropped EXE 2 IoCs

pid	Process
752	Windows Update.exe
432	Windows Update.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe"	Windows Update.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
60	whatismyipaddress.com
62	whatismyipaddress.com

Maps connected drives based on registry 3 TTPs 4 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	Windows Update.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Windows Update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4896 set thread context of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 752 set thread context of 432	752	Windows Update.exe	103
PID 432 set thread context of 1564	432	Windows Update.exe	104
PID 432 set thread context of 1980	432	Windows Update.exe	105

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1980	vbc.exe
1980	vbc.exe
432	Windows Update.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	Windows Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
432	Windows Update.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 4896 wrote to memory of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 4896 wrote to memory of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 4896 wrote to memory of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 4896 wrote to memory of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 4896 wrote to memory of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 4896 wrote to memory of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 4896 wrote to memory of 2052	4896	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	100
PID 2052 wrote to memory of 752	2052	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	101
PID 2052 wrote to memory of 752	2052	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	101
PID 2052 wrote to memory of 752	2052	55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe	101
PID 752 wrote to memory of 432	752	Windows Update.exe	103
PID 752 wrote to memory of 432	752	Windows Update.exe	103
PID 752 wrote to memory of 432	752	Windows Update.exe	103
PID 752 wrote to memory of 432	752	Windows Update.exe	103
PID 752 wrote to memory of 432	752	Windows Update.exe	103
PID 752 wrote to memory of 432	752	Windows Update.exe	103
PID 752 wrote to memory of 432	752	Windows Update.exe	103
PID 752 wrote to memory of 432	752	Windows Update.exe	103
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1564	432	Windows Update.exe	104
PID 432 wrote to memory of 1980	432	Windows Update.exe	105
PID 432 wrote to memory of 1980	432	Windows Update.exe	105
PID 432 wrote to memory of 1980	432	Windows Update.exe	105
PID 432 wrote to memory of 1980	432	Windows Update.exe	105
PID 432 wrote to memory of 1980	432	Windows Update.exe	105
PID 432 wrote to memory of 1980	432	Windows Update.exe	105
PID 432 wrote to memory of 1980	432	Windows Update.exe	105
PID 432 wrote to memory of 1980	432	Windows Update.exe	105
PID 432 wrote to memory of 1980	432	Windows Update.exe	105

C:\Users\Admin\AppData\Local\Temp\55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe
"C:\Users\Admin\AppData\Local\Temp\55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Users\Admin\AppData\Local\Temp\55ce96ae8bbca2b1ec44517eacc3b4b06c05b8bd7dd211653962474e9b84d650.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Users\Admin\AppData\Roaming\Windows Update.exe
    "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
    3⤵
    - Looks for VirtualBox Guest Additions in registry
    - Looks for VMWare Tools registry key
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Maps connected drives based on registry
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:752
  - - C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "{path}"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:432
    - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        5⤵
        Accesses Microsoft Outlook accounts
        
        PID:1564
    - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
        5⤵
        Suspicious behavior: EnumeratesProcesses
        
        PID:1980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion