Analysis Overview
SHA256
ec4b26011b3dbc1ee514189ca764e73ce7c2acc7a7f6e9cfa8190c8151484ab7
Threat Level: Known bad
The file clean.exe was found to be: Known bad.
Malicious Activity Summary
Detect Umbral payload
Umbral family
Umbral
Command and Scripting Interpreter: PowerShell
Reads user/profile data of web browsers
Looks up external IP address via web service
Legitimate hosting services abused for malware hosting/C2
Unsigned PE
Suspicious use of WriteProcessMemory
Detects videocard installed
Suspicious use of SendNotifyMessage
Runs ping.exe
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Views/modifies file attributes
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-05 09:08
Signatures
Detect Umbral payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Umbral family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-05 09:08
Reported
2024-05-05 09:09
Platform
win10v2004-20240419-en
Max time kernel
61s
Max time network
64s
Command Line
Signatures
Detect Umbral payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Umbral
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Reads user/profile data of web browsers
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | discord.com | N/A | N/A |
| N/A | discord.com | N/A | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\system32\taskmgr.exe | N/A |
Detects videocard installed
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\clean.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: 36 | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: 36 | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\wmic.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SYSTEM32\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\clean.exe
"C:\Users\Admin\AppData\Local\Temp\clean.exe"
C:\Windows\System32\Wbem\wmic.exe
"wmic.exe" csproduct get uuid
C:\Windows\SYSTEM32\attrib.exe
"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\clean.exe"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\clean.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
C:\Windows\System32\Wbem\wmic.exe
"wmic.exe" os get Caption
C:\Windows\System32\Wbem\wmic.exe
"wmic.exe" computersystem get totalphysicalmemory
C:\Windows\System32\Wbem\wmic.exe
"wmic.exe" csproduct get uuid
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
C:\Windows\System32\Wbem\wmic.exe
"wmic" path win32_VideoController get name
C:\Windows\SYSTEM32\cmd.exe
"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\clean.exe" && pause
C:\Windows\system32\PING.EXE
ping localhost
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | gstatic.com | udp |
| GB | 216.58.201.99:443 | gstatic.com | tcp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 99.201.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | discord.com | udp |
| US | 162.159.136.232:443 | discord.com | tcp |
| US | 8.8.8.8:53 | 232.136.159.162.in-addr.arpa | udp |
| NL | 23.62.61.171:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 171.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
Files
memory/3552-1-0x0000011085C60000-0x0000011085CA0000-memory.dmp
memory/3552-0-0x00007FF91F0A3000-0x00007FF91F0A5000-memory.dmp
memory/3552-2-0x00007FF91F0A0000-0x00007FF91FB61000-memory.dmp
memory/2532-3-0x00007FF91F0A0000-0x00007FF91FB61000-memory.dmp
memory/2532-4-0x00007FF91F0A0000-0x00007FF91FB61000-memory.dmp
memory/2532-5-0x00007FF91F0A0000-0x00007FF91FB61000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cuw15pgb.bef.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2532-11-0x00000226B6E80000-0x00000226B6EA2000-memory.dmp
memory/2532-18-0x00007FF91F0A0000-0x00007FF91FB61000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | d85ba6ff808d9e5444a4b369f5bc2730 |
| SHA1 | 31aa9d96590fff6981b315e0b391b575e4c0804a |
| SHA256 | 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f |
| SHA512 | 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 6d3e9c29fe44e90aae6ed30ccf799ca8 |
| SHA1 | c7974ef72264bbdf13a2793ccf1aed11bc565dce |
| SHA256 | 2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d |
| SHA512 | 60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a |
memory/3552-32-0x00000110A0390000-0x00000110A0406000-memory.dmp
memory/3552-33-0x00000110A0410000-0x00000110A0460000-memory.dmp
memory/3552-34-0x00000110A0320000-0x00000110A033E000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | c65738617888921a153bd9b1ef516ee7 |
| SHA1 | 5245e71ea3c181d76320c857b639272ac9e079b1 |
| SHA256 | 4640ba4001fd16a593315299cbdd4988dc2c7075820687f1018aac40aca95c26 |
| SHA512 | 2e2a0ebd93f9d8dd07a7599054bce232683e9add9a35e77b584618040bcfd84a42545352519ec4736cc379002210b6f3ed2d905591c6925c0981b0392b495bfa |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 548dd08570d121a65e82abb7171cae1c |
| SHA1 | 1a1b5084b3a78f3acd0d811cc79dbcac121217ab |
| SHA256 | cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc |
| SHA512 | 37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b |
memory/3552-70-0x00000110A0350000-0x00000110A035A000-memory.dmp
memory/3552-71-0x00000110A0460000-0x00000110A0472000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 45ad40f012b09e141955482368549640 |
| SHA1 | 3f9cd15875c1e397c3b2b5592805577ae88a96cb |
| SHA256 | ea3b59172f1a33677f9cb3843fb4d6093b806d3a7cf2f3c6d4692f5421f656ce |
| SHA512 | 3de08f8affca1c1450088f560776cf3d65146cadac43c06eb922c7b3cea436e519966cf38458303ffeb1a58c53f8952cffda6c34216fda7594e014b516e83b33 |
memory/3552-89-0x00007FF91F0A0000-0x00007FF91FB61000-memory.dmp
memory/3316-90-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-92-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-91-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-96-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-102-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-101-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-100-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-99-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-98-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp
memory/3316-97-0x0000019BC46D0000-0x0000019BC46D1000-memory.dmp