asyncrat | 7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2

Virtualization/Sandbox Evasion

Processes:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2944 powershell.exe

pid	process
2944	powershell.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.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

T1082

Processes:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

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:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

description	pid	process	target process
PID 2244 set thread context of 2256	2244	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exepowershell.exe7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2868 schtasks.exe

pid	process
2868	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exepowershell.exe

pid	process
2244	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
2244	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
2244	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
2244	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
2944	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2244	7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
Token: SeDebugPrivilege	2944	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe

C:\Users\Admin\AppData\Local\Temp\7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
"C:\Users\Admin\AppData\Local\Temp\7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2944
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dfBzkZXed" /XML "C:\Users\Admin\AppData\Local\Temp\tmp560C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2868
- C:\Users\Admin\AppData\Local\Temp\7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
  "C:\Users\Admin\AppData\Local\Temp\7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe"
  2⤵
  PID:2612
- C:\Users\Admin\AppData\Local\Temp\7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe
  "C:\Users\Admin\AppData\Local\Temp\7981642e3e60c849153b12c488b7589a07f590781d5b2cf209474fdd370d63a2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2