784701d5138d608aacea3c83d5326af091766d37bc8be5f8aebb8d238f8249fa

Processes:

svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0"	svchost.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

xx-lavacrypt-dfgs.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	xx-lavacrypt-dfgs.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	svchost.exe

Looks for VMWare Tools registry key 2 TTPs 2 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

xx-lavacrypt-dfgs.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools	xx-lavacrypt-dfgs.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools	svchost.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

Processes:

xx-lavacrypt-dfgs.exesvchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	xx-lavacrypt-dfgs.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	xx-lavacrypt-dfgs.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

xx-lavacrypt-dfgs.exesvchost.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	xx-lavacrypt-dfgs.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

696 svchost.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
696	svchost.exe

Windows security modification 2 TTPs 3 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0"	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

xx-lavacrypt-dfgs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	xx-lavacrypt-dfgs.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

Processes:

svchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

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

Processes:

xx-lavacrypt-dfgs.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	xx-lavacrypt-dfgs.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	xx-lavacrypt-dfgs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	svchost.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

svchost.exe

description pid process target process

PID 696 set thread context of 1636 696 svchost.exe vbc.exe
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
T1053

Processes:

schtasks.exe

pid process

1604 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3908 timeout.exe

description	pid	process	target process
PID 696 set thread context of 1636	696	svchost.exe	vbc.exe

pid	process
1604	schtasks.exe

pid	process
3908	timeout.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

xx-lavacrypt-dfgs.exepowershell.exe

pid	process
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1616	xx-lavacrypt-dfgs.exe
1760	powershell.exe
1760	powershell.exe
1760	powershell.exe

Suspicious behavior: MapViewOfSection 64 IoCs

Processes:

vbc.exe

pid	process
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe
1636	vbc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

xx-lavacrypt-dfgs.exesvchost.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1616 xx-lavacrypt-dfgs.exe
Token: SeDebugPrivilege 696 svchost.exe
Token: SeDebugPrivilege 1760 powershell.exe

description	pid	process
Token: SeDebugPrivilege	1616	xx-lavacrypt-dfgs.exe
Token: SeDebugPrivilege	696	svchost.exe
Token: SeDebugPrivilege	1760	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

xx-lavacrypt-dfgs.execmd.execmd.exesvchost.exevbc.exe

description	pid	process	target process
PID 1616 wrote to memory of 224	1616	xx-lavacrypt-dfgs.exe	cmd.exe
PID 1616 wrote to memory of 224	1616	xx-lavacrypt-dfgs.exe	cmd.exe
PID 1616 wrote to memory of 3216	1616	xx-lavacrypt-dfgs.exe	cmd.exe
PID 1616 wrote to memory of 3216	1616	xx-lavacrypt-dfgs.exe	cmd.exe
PID 3216 wrote to memory of 3908	3216	cmd.exe	timeout.exe
PID 3216 wrote to memory of 3908	3216	cmd.exe	timeout.exe
PID 224 wrote to memory of 1604	224	cmd.exe	schtasks.exe
PID 224 wrote to memory of 1604	224	cmd.exe	schtasks.exe
PID 3216 wrote to memory of 696	3216	cmd.exe	svchost.exe
PID 3216 wrote to memory of 696	3216	cmd.exe	svchost.exe
PID 696 wrote to memory of 1760	696	svchost.exe	powershell.exe
PID 696 wrote to memory of 1760	696	svchost.exe	powershell.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1636	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1448	696	svchost.exe	vbc.exe
PID 696 wrote to memory of 1448	696	svchost.exe	vbc.exe
PID 1636 wrote to memory of 3236	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 3236	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 3472	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 3472	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 4132	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 4132	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 2388	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 2388	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 1124	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 1124	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 4944	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 4944	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 2312	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 2312	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 5000	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 5000	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 1052	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 1052	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 3204	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 3204	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 5100	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 5100	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 2252	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 2252	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 2720	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 2720	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 2516	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 2516	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 1704	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 1704	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 3380	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 3380	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 2236	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 2236	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 2416	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 2416	1636	vbc.exe	cmd.exe
PID 1636 wrote to memory of 4396	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 4396	1636	vbc.exe	explorer.exe
PID 1636 wrote to memory of 4084	1636	vbc.exe	svchost.exe
PID 1636 wrote to memory of 4084	1636	vbc.exe	svchost.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

svchost.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe
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

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

C:\Users\Admin\AppData\Local\Temp\xx-lavacrypt-dfgs.exe
"C:\Users\Admin\AppData\Local\Temp\xx-lavacrypt-dfgs.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1616

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:224

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:1604

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp117F.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:3216

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:3908

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:696

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1760

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe"
4⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:3236

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:3472

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:4132

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:2388

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:1124

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:4944

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:2312

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:5000

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:1052

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:3204

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:5100

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:2252

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:2720

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:2516

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:1704

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:3380

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:2236

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:2416

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:4396

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:4084

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:464

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:404

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:3464

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:1380

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:1516

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:1196

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:1092

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:1588

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:2472

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:3100

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:3424

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:2868

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
5⤵
PID:1168

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
5⤵
PID:5068

C:\Windows\system32\svchost.exe
"C:\Windows\system32\svchost.exe"
5⤵
PID:720

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe"
4⤵
PID:1448

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=1408 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
1⤵
PID:4392

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scripting

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Scripting

T1064

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion