hawkeye | 9704d0420f573639eed3b1765ea5f212ba4c3129333f2efc167a1c0724935419

Virtualization/Sandbox Evasion

Processes:

Invoice.pdf.scr

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	Invoice.pdf.scr

NirSoft MailPassView 8 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/2796-12-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/2796-19-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/2796-17-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/2796-15-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/2796-11-0x0000000000400000-0x0000000000488000-memory.dmp	MailPassView
behavioral1/memory/2792-23-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/2792-24-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/2792-25-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 8 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/2796-12-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/2796-19-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/2796-17-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/2796-15-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/2796-11-0x0000000000400000-0x0000000000488000-memory.dmp	WebBrowserPassView
behavioral1/memory/2120-26-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral1/memory/2120-27-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView
behavioral1/memory/2120-30-0x0000000000400000-0x0000000000458000-memory.dmp	WebBrowserPassView

Nirsoft 11 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2796-12-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/2796-19-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/2796-17-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/2796-15-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/2796-11-0x0000000000400000-0x0000000000488000-memory.dmp	Nirsoft
behavioral1/memory/2792-23-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2792-24-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2792-25-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2120-26-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral1/memory/2120-27-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft
behavioral1/memory/2120-30-0x0000000000400000-0x0000000000458000-memory.dmp	Nirsoft

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

Invoice.pdf.scr

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	Invoice.pdf.scr

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

T1082

Processes:

Invoice.pdf.scr

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Invoice.pdf.scr
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Invoice.pdf.scr

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

vbc.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Looks up external IP address via web service 3 IoCs

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

Processes:

flow	ioc
4	whatismyipaddress.com
6	whatismyipaddress.com
7	whatismyipaddress.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

T1082

Processes:

Invoice.pdf.scr

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Invoice.pdf.scr
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Invoice.pdf.scr

Suspicious use of SetThreadContext 3 IoCs

Processes:

Invoice.pdf.scrMSBuild.exe

description	pid	Process	procid_target
PID 2336 set thread context of 2796	2336	Invoice.pdf.scr	35
PID 2796 set thread context of 2792	2796	MSBuild.exe	36
PID 2796 set thread context of 2120	2796	MSBuild.exe	37

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

Processes:

schtasks.exe

pid	Process
2052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Invoice.pdf.scrMSBuild.exe

pid	Process
2336	Invoice.pdf.scr
2336	Invoice.pdf.scr
2336	Invoice.pdf.scr
2336	Invoice.pdf.scr
2336	Invoice.pdf.scr
2796	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Invoice.pdf.scrMSBuild.exe

description	pid	Process
Token: SeDebugPrivilege	2336	Invoice.pdf.scr
Token: SeDebugPrivilege	2796	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid	Process
2796	MSBuild.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

Invoice.pdf.scrMSBuild.exe

description	pid	Process	procid_target
PID 2336 wrote to memory of 2052	2336	Invoice.pdf.scr	31
PID 2336 wrote to memory of 2052	2336	Invoice.pdf.scr	31
PID 2336 wrote to memory of 2052	2336	Invoice.pdf.scr	31
PID 2336 wrote to memory of 2052	2336	Invoice.pdf.scr	31
PID 2336 wrote to memory of 2188	2336	Invoice.pdf.scr	33
PID 2336 wrote to memory of 2188	2336	Invoice.pdf.scr	33
PID 2336 wrote to memory of 2188	2336	Invoice.pdf.scr	33
PID 2336 wrote to memory of 2188	2336	Invoice.pdf.scr	33
PID 2336 wrote to memory of 2520	2336	Invoice.pdf.scr	34
PID 2336 wrote to memory of 2520	2336	Invoice.pdf.scr	34
PID 2336 wrote to memory of 2520	2336	Invoice.pdf.scr	34
PID 2336 wrote to memory of 2520	2336	Invoice.pdf.scr	34
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2336 wrote to memory of 2796	2336	Invoice.pdf.scr	35
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2792	2796	MSBuild.exe	36
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37
PID 2796 wrote to memory of 2120	2796	MSBuild.exe	37

C:\Users\Admin\AppData\Local\Temp\Invoice.pdf.scr
"C:\Users\Admin\AppData\Local\Temp\Invoice.pdf.scr" /S
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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gzmKwsNOg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2185.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2052
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
  2⤵
  PID:2188
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
  2⤵
  PID:2520
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2796
- - 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"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:2792
- - 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"
    3⤵
    PID:2120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Scripting

T1064

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Scripting

T1064

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

T1082

Virtualization/Sandbox Evasion