Analysis
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max time kernel
26s -
max time network
17s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
20-09-2024 23:44
Static task
static1
Behavioral task
behavioral1
Sample
18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe
Resource
win10v2004-20240802-en
General
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Target
18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe
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Size
1.4MB
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MD5
ce100b5ae4fe05c8fd8f44f7ad9f4b40
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SHA1
19a77380a68da11304c9ba7c1048f7257ba4951f
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SHA256
18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343b
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SHA512
b19f7cd1b558ef7f598adb84726c94c885696c31efdbd981d07df17b908cb23fd7098b6f8f622d584033b55dba1d264f68a734e60bd81cb5d3f5600a542652ca
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SSDEEP
24576:6DiGBKBipGMOU5lRBixlkBg0BLchDLtVVi/FpPwgX2YVC0/xaTO3O:OiGBKBipGMOUXRBi4tuFtjCxB80/xP
Malware Config
Signatures
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Detect Umbral payload 5 IoCs
resource yara_rule behavioral1/memory/2896-9-0x0000000000400000-0x0000000000440000-memory.dmp family_umbral behavioral1/memory/2896-13-0x0000000000400000-0x0000000000440000-memory.dmp family_umbral behavioral1/memory/2896-11-0x0000000000400000-0x0000000000440000-memory.dmp family_umbral behavioral1/memory/2896-7-0x0000000000400000-0x0000000000440000-memory.dmp family_umbral behavioral1/memory/2896-6-0x0000000000400000-0x0000000000440000-memory.dmp family_umbral -
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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pid Process 2284 powershell.exe 2776 powershell.exe 2248 powershell.exe 1488 powershell.exe -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\drivers\etc\hosts MSBuild.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\%startupname%.lnk 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 9 discord.com 10 discord.com -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 6 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2900 set thread context of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 15 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSBuild.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmic.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmic.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmic.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmic.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wmic.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 308 cmd.exe 1128 PING.EXE -
Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.
pid Process 1772 wmic.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1128 PING.EXE -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 2896 MSBuild.exe 1488 powershell.exe 2284 powershell.exe 2776 powershell.exe 2132 powershell.exe 2248 powershell.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe Token: SeDebugPrivilege 2896 MSBuild.exe Token: SeIncreaseQuotaPrivilege 1968 wmic.exe Token: SeSecurityPrivilege 1968 wmic.exe Token: SeTakeOwnershipPrivilege 1968 wmic.exe Token: SeLoadDriverPrivilege 1968 wmic.exe Token: SeSystemProfilePrivilege 1968 wmic.exe Token: SeSystemtimePrivilege 1968 wmic.exe Token: SeProfSingleProcessPrivilege 1968 wmic.exe Token: SeIncBasePriorityPrivilege 1968 wmic.exe Token: SeCreatePagefilePrivilege 1968 wmic.exe Token: SeBackupPrivilege 1968 wmic.exe Token: SeRestorePrivilege 1968 wmic.exe Token: SeShutdownPrivilege 1968 wmic.exe Token: SeDebugPrivilege 1968 wmic.exe Token: SeSystemEnvironmentPrivilege 1968 wmic.exe Token: SeRemoteShutdownPrivilege 1968 wmic.exe Token: SeUndockPrivilege 1968 wmic.exe Token: SeManageVolumePrivilege 1968 wmic.exe Token: 33 1968 wmic.exe Token: 34 1968 wmic.exe Token: 35 1968 wmic.exe Token: SeIncreaseQuotaPrivilege 1968 wmic.exe Token: SeSecurityPrivilege 1968 wmic.exe Token: SeTakeOwnershipPrivilege 1968 wmic.exe Token: SeLoadDriverPrivilege 1968 wmic.exe Token: SeSystemProfilePrivilege 1968 wmic.exe Token: SeSystemtimePrivilege 1968 wmic.exe Token: SeProfSingleProcessPrivilege 1968 wmic.exe Token: SeIncBasePriorityPrivilege 1968 wmic.exe Token: SeCreatePagefilePrivilege 1968 wmic.exe Token: SeBackupPrivilege 1968 wmic.exe Token: SeRestorePrivilege 1968 wmic.exe Token: SeShutdownPrivilege 1968 wmic.exe Token: SeDebugPrivilege 1968 wmic.exe Token: SeSystemEnvironmentPrivilege 1968 wmic.exe Token: SeRemoteShutdownPrivilege 1968 wmic.exe Token: SeUndockPrivilege 1968 wmic.exe Token: SeManageVolumePrivilege 1968 wmic.exe Token: 33 1968 wmic.exe Token: 34 1968 wmic.exe Token: 35 1968 wmic.exe Token: SeDebugPrivilege 1488 powershell.exe Token: SeDebugPrivilege 2284 powershell.exe Token: SeDebugPrivilege 2776 powershell.exe Token: SeDebugPrivilege 2132 powershell.exe Token: SeIncreaseQuotaPrivilege 1912 wmic.exe Token: SeSecurityPrivilege 1912 wmic.exe Token: SeTakeOwnershipPrivilege 1912 wmic.exe Token: SeLoadDriverPrivilege 1912 wmic.exe Token: SeSystemProfilePrivilege 1912 wmic.exe Token: SeSystemtimePrivilege 1912 wmic.exe Token: SeProfSingleProcessPrivilege 1912 wmic.exe Token: SeIncBasePriorityPrivilege 1912 wmic.exe Token: SeCreatePagefilePrivilege 1912 wmic.exe Token: SeBackupPrivilege 1912 wmic.exe Token: SeRestorePrivilege 1912 wmic.exe Token: SeShutdownPrivilege 1912 wmic.exe Token: SeDebugPrivilege 1912 wmic.exe Token: SeSystemEnvironmentPrivilege 1912 wmic.exe Token: SeRemoteShutdownPrivilege 1912 wmic.exe Token: SeUndockPrivilege 1912 wmic.exe Token: SeManageVolumePrivilege 1912 wmic.exe Token: 33 1912 wmic.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2900 wrote to memory of 2960 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 30 PID 2900 wrote to memory of 2960 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 30 PID 2900 wrote to memory of 2960 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 30 PID 2900 wrote to memory of 2960 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 30 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2900 wrote to memory of 2896 2900 18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe 31 PID 2896 wrote to memory of 1968 2896 MSBuild.exe 32 PID 2896 wrote to memory of 1968 2896 MSBuild.exe 32 PID 2896 wrote to memory of 1968 2896 MSBuild.exe 32 PID 2896 wrote to memory of 1968 2896 MSBuild.exe 32 PID 2896 wrote to memory of 1164 2896 MSBuild.exe 35 PID 2896 wrote to memory of 1164 2896 MSBuild.exe 35 PID 2896 wrote to memory of 1164 2896 MSBuild.exe 35 PID 2896 wrote to memory of 1164 2896 MSBuild.exe 35 PID 2896 wrote to memory of 1488 2896 MSBuild.exe 37 PID 2896 wrote to memory of 1488 2896 MSBuild.exe 37 PID 2896 wrote to memory of 1488 2896 MSBuild.exe 37 PID 2896 wrote to memory of 1488 2896 MSBuild.exe 37 PID 2896 wrote to memory of 2284 2896 MSBuild.exe 39 PID 2896 wrote to memory of 2284 2896 MSBuild.exe 39 PID 2896 wrote to memory of 2284 2896 MSBuild.exe 39 PID 2896 wrote to memory of 2284 2896 MSBuild.exe 39 PID 2896 wrote to memory of 2776 2896 MSBuild.exe 41 PID 2896 wrote to memory of 2776 2896 MSBuild.exe 41 PID 2896 wrote to memory of 2776 2896 MSBuild.exe 41 PID 2896 wrote to memory of 2776 2896 MSBuild.exe 41 PID 2896 wrote to memory of 2132 2896 MSBuild.exe 43 PID 2896 wrote to memory of 2132 2896 MSBuild.exe 43 PID 2896 wrote to memory of 2132 2896 MSBuild.exe 43 PID 2896 wrote to memory of 2132 2896 MSBuild.exe 43 PID 2896 wrote to memory of 1912 2896 MSBuild.exe 45 PID 2896 wrote to memory of 1912 2896 MSBuild.exe 45 PID 2896 wrote to memory of 1912 2896 MSBuild.exe 45 PID 2896 wrote to memory of 1912 2896 MSBuild.exe 45 PID 2896 wrote to memory of 288 2896 MSBuild.exe 47 PID 2896 wrote to memory of 288 2896 MSBuild.exe 47 PID 2896 wrote to memory of 288 2896 MSBuild.exe 47 PID 2896 wrote to memory of 288 2896 MSBuild.exe 47 PID 2896 wrote to memory of 2196 2896 MSBuild.exe 49 PID 2896 wrote to memory of 2196 2896 MSBuild.exe 49 PID 2896 wrote to memory of 2196 2896 MSBuild.exe 49 PID 2896 wrote to memory of 2196 2896 MSBuild.exe 49 PID 2896 wrote to memory of 2248 2896 MSBuild.exe 51 PID 2896 wrote to memory of 2248 2896 MSBuild.exe 51 PID 2896 wrote to memory of 2248 2896 MSBuild.exe 51 PID 2896 wrote to memory of 2248 2896 MSBuild.exe 51 PID 2896 wrote to memory of 1772 2896 MSBuild.exe 53 PID 2896 wrote to memory of 1772 2896 MSBuild.exe 53 PID 2896 wrote to memory of 1772 2896 MSBuild.exe 53 PID 2896 wrote to memory of 1772 2896 MSBuild.exe 53 PID 2896 wrote to memory of 308 2896 MSBuild.exe 55 PID 2896 wrote to memory of 308 2896 MSBuild.exe 55 PID 2896 wrote to memory of 308 2896 MSBuild.exe 55 PID 2896 wrote to memory of 308 2896 MSBuild.exe 55 PID 308 wrote to memory of 1128 308 cmd.exe 57 PID 308 wrote to memory of 1128 308 cmd.exe 57 PID 308 wrote to memory of 1128 308 cmd.exe 57 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 1164 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe"C:\Users\Admin\AppData\Local\Temp\18a0a32340d190a5b8c803fa84bae012a4a6f8c89ef228a74e40c7edd89b343bN.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2900 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵PID:2960
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Drops file in Drivers directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2896 -
C:\Windows\SysWOW64\Wbem\wmic.exe"wmic.exe" csproduct get uuid3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1968
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C:\Windows\SysWOW64\attrib.exe"attrib.exe" +h +s "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:1164
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe'3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1488
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C:\Windows\SysWOW64\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 23⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2284
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2776
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2132
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C:\Windows\SysWOW64\Wbem\wmic.exe"wmic.exe" os get Caption3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1912
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C:\Windows\SysWOW64\Wbem\wmic.exe"wmic.exe" computersystem get totalphysicalmemory3⤵
- System Location Discovery: System Language Discovery
PID:288
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C:\Windows\SysWOW64\Wbem\wmic.exe"wmic.exe" csproduct get uuid3⤵
- System Location Discovery: System Language Discovery
PID:2196
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2248
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C:\Windows\SysWOW64\Wbem\wmic.exe"wmic" path win32_VideoController get name3⤵
- System Location Discovery: System Language Discovery
- Detects videocard installed
PID:1772
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c ping localhost && del /F /A h "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" && pause3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:308 -
C:\Windows\SysWOW64\PING.EXEping localhost4⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1128
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD5c8a2229367dd0fd30c04f6f042069b91
SHA137c6eb0901a40070962f5c57966069822b4b0b76
SHA256b5d340de0712aff612598ba773524d772888b955a452b21f01328c4f42c48ee6
SHA51256424a8dad44defd81ec11f239a2b67619f2f965292be4c287dd78df20e96ae8aa6c1ab9cff2e9dfc1eeafd7662698dafdb4adecc80c5e6d9525faa2dbaaa056