bitrat | 49568dbced141895672057dc8244ce926ba027f7d04915a3a8504584f56b2c87

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	b4a26290880d3fb80df39f433ebb0490.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	b4a26290880d3fb80df39f433ebb0490.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	b4a26290880d3fb80df39f433ebb0490.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b4a26290880d3fb80df39f433ebb0490.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	b4a26290880d3fb80df39f433ebb0490.exe

UPX packed file 25 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4084-47-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-48-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-49-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-51-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-57-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-73-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-74-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-75-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-77-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-78-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-76-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-79-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-124-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-125-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-143-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-144-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-145-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-147-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-148-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-150-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-151-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-153-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-154-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-156-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4084-157-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

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	b4a26290880d3fb80df39f433ebb0490.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	b4a26290880d3fb80df39f433ebb0490.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4084	MSBuild.exe
4084	MSBuild.exe
4084	MSBuild.exe
4084	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3432 set thread context of 4084	3432	b4a26290880d3fb80df39f433ebb0490.exe	117

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

pid	Process
856	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
2656	powershell.exe
2656	powershell.exe
1604	powershell.exe
1604	powershell.exe
3432	b4a26290880d3fb80df39f433ebb0490.exe
3432	b4a26290880d3fb80df39f433ebb0490.exe
2656	powershell.exe
1604	powershell.exe
3432	b4a26290880d3fb80df39f433ebb0490.exe
3432	b4a26290880d3fb80df39f433ebb0490.exe
4528	powershell.exe
4528	powershell.exe
4528	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	powershell.exe
Token: SeDebugPrivilege	1604	powershell.exe
Token: SeDebugPrivilege	3432	b4a26290880d3fb80df39f433ebb0490.exe
Token: SeDebugPrivilege	4528	powershell.exe
Token: SeShutdownPrivilege	4084	MSBuild.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4084	MSBuild.exe
4084	MSBuild.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3432 wrote to memory of 2656	3432	b4a26290880d3fb80df39f433ebb0490.exe	108
PID 3432 wrote to memory of 2656	3432	b4a26290880d3fb80df39f433ebb0490.exe	108
PID 3432 wrote to memory of 2656	3432	b4a26290880d3fb80df39f433ebb0490.exe	108
PID 3432 wrote to memory of 1604	3432	b4a26290880d3fb80df39f433ebb0490.exe	110
PID 3432 wrote to memory of 1604	3432	b4a26290880d3fb80df39f433ebb0490.exe	110
PID 3432 wrote to memory of 1604	3432	b4a26290880d3fb80df39f433ebb0490.exe	110
PID 3432 wrote to memory of 856	3432	b4a26290880d3fb80df39f433ebb0490.exe	112
PID 3432 wrote to memory of 856	3432	b4a26290880d3fb80df39f433ebb0490.exe	112
PID 3432 wrote to memory of 856	3432	b4a26290880d3fb80df39f433ebb0490.exe	112
PID 3432 wrote to memory of 4528	3432	b4a26290880d3fb80df39f433ebb0490.exe	114
PID 3432 wrote to memory of 4528	3432	b4a26290880d3fb80df39f433ebb0490.exe	114
PID 3432 wrote to memory of 4528	3432	b4a26290880d3fb80df39f433ebb0490.exe	114
PID 3432 wrote to memory of 3204	3432	b4a26290880d3fb80df39f433ebb0490.exe	116
PID 3432 wrote to memory of 3204	3432	b4a26290880d3fb80df39f433ebb0490.exe	116
PID 3432 wrote to memory of 3204	3432	b4a26290880d3fb80df39f433ebb0490.exe	116
PID 3432 wrote to memory of 4084	3432	b4a26290880d3fb80df39f433ebb0490.exe	117
PID 3432 wrote to memory of 4084	3432	b4a26290880d3fb80df39f433ebb0490.exe	117
PID 3432 wrote to memory of 4084	3432	b4a26290880d3fb80df39f433ebb0490.exe	117
PID 3432 wrote to memory of 4084	3432	b4a26290880d3fb80df39f433ebb0490.exe	117
PID 3432 wrote to memory of 4084	3432	b4a26290880d3fb80df39f433ebb0490.exe	117
PID 3432 wrote to memory of 4084	3432	b4a26290880d3fb80df39f433ebb0490.exe	117
PID 3432 wrote to memory of 4084	3432	b4a26290880d3fb80df39f433ebb0490.exe	117

C:\Users\Admin\AppData\Local\Temp\b4a26290880d3fb80df39f433ebb0490.exe
"C:\Users\Admin\AppData\Local\Temp\b4a26290880d3fb80df39f433ebb0490.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:3432
- 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\b4a26290880d3fb80df39f433ebb0490.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2656
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QhNsxxGtGmp.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1604
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QhNsxxGtGmp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD4FE.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:856
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QhNsxxGtGmp.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4528
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:3204
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4084

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4264 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:3808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion