Analysis
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max time kernel
121s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
22-10-2024 07:27
Static task
static1
Behavioral task
behavioral1
Sample
Chrmroe-intraller.msi
Resource
win7-20240903-en
windows7-x64
16 signatures
150 seconds
General
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Target
Chrmroe-intraller.msi
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Size
43.5MB
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MD5
113a2eab7ccf51501146194bbaadb175
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SHA1
de00c7a8ff5b49adec8bc44eba7f6332446f0e8f
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SHA256
4cab134dbaf1059613f44da615292af5713a0aa3a0185abda0cf1ebf8a7dc9a4
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SHA512
ce681034d9c3cad7367fa2a541401036651ce79385524b10f8ea0287c6c6e1bd307c82d339056d6f2e2fd48cbdd05e80650c1b5acb62b55772b4157d3ef9c13e
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SSDEEP
786432:KPmAYqjq7J2mESTU1A2SBaUCAkEPstiz7Ngv9iJ67P3+OBrIU7:d4m5U1A2SMUxstiz7NGYJ673z9
Malware Config
Signatures
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
msiexec.exemsiexec.exedescription ioc Process File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\M: msiexec.exe -
Drops file in System32 directory 1 IoCs
Processes:
powershell.exedescription ioc Process File opened for modification C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Drops file in Program Files directory 15 IoCs
Processes:
JkRyrlfVyEOH.exeqMdeNKsXYpNq.exemsiexec.exedescription ioc Process File created C:\Program Files\UtilizeDynamicWorker\qMdeNKsXYpNq JkRyrlfVyEOH.exe File created C:\Program Files\UtilizeDynamicWorker\ChromeSetup.exe JkRyrlfVyEOH.exe File opened for modification C:\Program Files\UtilizeDynamicWorker\qMdeNKsXYpNq.exe JkRyrlfVyEOH.exe File created C:\Program Files\UtilizeDynamicWorker\vKtMPwVbdMUU.exe JkRyrlfVyEOH.exe File opened for modification C:\Program Files\UtilizeDynamicWorker\vKtMPwVbdMUU.exe JkRyrlfVyEOH.exe File opened for modification C:\Program Files\UtilizeDynamicWorker qMdeNKsXYpNq.exe File created C:\Program Files\UtilizeDynamicWorker\JkRyrlfVyEOH.exe msiexec.exe File created C:\Program Files\UtilizeDynamicWorker\ZcOUMgAKFaEfsJXTUJeF msiexec.exe File created C:\Program Files\UtilizeDynamicWorker\vKtMPwVbdMUU.xml JkRyrlfVyEOH.exe File created C:\Program Files\UtilizeDynamicWorker\svml_dispmd2.dll msiexec.exe File created C:\Program Files\UtilizeDynamicWorker\UE4PrereqSetup_x64.exe msiexec.exe File opened for modification C:\Program Files\UtilizeDynamicWorker\qMdeNKsXYpNq JkRyrlfVyEOH.exe File opened for modification C:\Program Files\UtilizeDynamicWorker\vKtMPwVbdMUU.xml JkRyrlfVyEOH.exe File created C:\Program Files\UtilizeDynamicWorker\qMdeNKsXYpNq.exe JkRyrlfVyEOH.exe File opened for modification C:\Program Files\UtilizeDynamicWorker\ChromeSetup.exe JkRyrlfVyEOH.exe -
Drops file in Windows directory 10 IoCs
Processes:
msiexec.exeDrvInst.exedescription ioc Process File opened for modification C:\Windows\Installer\f77034b.msi msiexec.exe File opened for modification C:\Windows\Installer\f77034c.ipi msiexec.exe File opened for modification C:\Windows\INF\setupapi.ev3 DrvInst.exe File opened for modification C:\Windows\INF\setupapi.ev1 DrvInst.exe File created C:\Windows\Installer\f77034c.ipi msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\MSI483.tmp msiexec.exe File created C:\Windows\Installer\f77034e.msi msiexec.exe File opened for modification C:\Windows\INF\setupapi.dev.log DrvInst.exe File created C:\Windows\Installer\f77034b.msi msiexec.exe -
Executes dropped EXE 3 IoCs
Processes:
JkRyrlfVyEOH.exeqMdeNKsXYpNq.exeChromeSetup.exepid Process 548 JkRyrlfVyEOH.exe 2844 qMdeNKsXYpNq.exe 2784 ChromeSetup.exe -
Loads dropped DLL 8 IoCs
Processes:
qMdeNKsXYpNq.exepid Process 2844 qMdeNKsXYpNq.exe 2844 qMdeNKsXYpNq.exe 2844 qMdeNKsXYpNq.exe 2844 qMdeNKsXYpNq.exe 2844 qMdeNKsXYpNq.exe 2844 qMdeNKsXYpNq.exe 2844 qMdeNKsXYpNq.exe 2844 qMdeNKsXYpNq.exe -
Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
JkRyrlfVyEOH.exeqMdeNKsXYpNq.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JkRyrlfVyEOH.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language qMdeNKsXYpNq.exe -
Modifies data under HKEY_USERS 48 IoCs
Processes:
DrvInst.exemsiexec.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust DrvInst.exe Key deleted \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E msiexec.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key deleted \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D msiexec.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = b0ef9de05324db01 powershell.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2E msiexec.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs DrvInst.exe -
Modifies registry class 22 IoCs
Processes:
msiexec.exedescription ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\InstanceType = "0" msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\FAAA8C4338A21E940BBDADEAF349A873 msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\SourceList msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\SourceList\Net msiexec.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\Clients = 3a0000000000 msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\Version = "50855944" msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\SourceList\Net\1 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\SourceList\LastUsedSource = "n;1;C:\\Users\\Admin\\AppData\\Local\\Temp\\" msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\4846854E72C53884D9F5771C7C5E0FAB\ProductFeature msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\ProductName = "UtilizeDynamicWorker" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\Language = "1033" msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\FAAA8C4338A21E940BBDADEAF349A873\4846854E72C53884D9F5771C7C5E0FAB msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\SourceList\Media\1 = ";" msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Features\4846854E72C53884D9F5771C7C5E0FAB msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\PackageCode = "946E19091C761F448A618BE71E124645" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\Assignment = "1" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\AdvertiseFlags = "388" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\AuthorizedLUAApp = "0" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\DeploymentFlags = "3" msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\SourceList\PackageName = "Chrmroe-intraller.msi" msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Installer\Products\4846854E72C53884D9F5771C7C5E0FAB\SourceList\Media msiexec.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
msiexec.exepowershell.exeqMdeNKsXYpNq.exepid Process 2960 msiexec.exe 2960 msiexec.exe 1952 powershell.exe 2844 qMdeNKsXYpNq.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
msiexec.exemsiexec.exevssvc.exeDrvInst.exepowershell.exeJkRyrlfVyEOH.exedescription pid Process Token: SeShutdownPrivilege 2380 msiexec.exe Token: SeIncreaseQuotaPrivilege 2380 msiexec.exe Token: SeRestorePrivilege 2960 msiexec.exe Token: SeTakeOwnershipPrivilege 2960 msiexec.exe Token: SeSecurityPrivilege 2960 msiexec.exe Token: SeCreateTokenPrivilege 2380 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 2380 msiexec.exe Token: SeLockMemoryPrivilege 2380 msiexec.exe Token: SeIncreaseQuotaPrivilege 2380 msiexec.exe Token: SeMachineAccountPrivilege 2380 msiexec.exe Token: SeTcbPrivilege 2380 msiexec.exe Token: SeSecurityPrivilege 2380 msiexec.exe Token: SeTakeOwnershipPrivilege 2380 msiexec.exe Token: SeLoadDriverPrivilege 2380 msiexec.exe Token: SeSystemProfilePrivilege 2380 msiexec.exe Token: SeSystemtimePrivilege 2380 msiexec.exe Token: SeProfSingleProcessPrivilege 2380 msiexec.exe Token: SeIncBasePriorityPrivilege 2380 msiexec.exe Token: SeCreatePagefilePrivilege 2380 msiexec.exe Token: SeCreatePermanentPrivilege 2380 msiexec.exe Token: SeBackupPrivilege 2380 msiexec.exe Token: SeRestorePrivilege 2380 msiexec.exe Token: SeShutdownPrivilege 2380 msiexec.exe Token: SeDebugPrivilege 2380 msiexec.exe Token: SeAuditPrivilege 2380 msiexec.exe Token: SeSystemEnvironmentPrivilege 2380 msiexec.exe Token: SeChangeNotifyPrivilege 2380 msiexec.exe Token: SeRemoteShutdownPrivilege 2380 msiexec.exe Token: SeUndockPrivilege 2380 msiexec.exe Token: SeSyncAgentPrivilege 2380 msiexec.exe Token: SeEnableDelegationPrivilege 2380 msiexec.exe Token: SeManageVolumePrivilege 2380 msiexec.exe Token: SeImpersonatePrivilege 2380 msiexec.exe Token: SeCreateGlobalPrivilege 2380 msiexec.exe Token: SeBackupPrivilege 2524 vssvc.exe Token: SeRestorePrivilege 2524 vssvc.exe Token: SeAuditPrivilege 2524 vssvc.exe Token: SeBackupPrivilege 2960 msiexec.exe Token: SeRestorePrivilege 2960 msiexec.exe Token: SeRestorePrivilege 2872 DrvInst.exe Token: SeRestorePrivilege 2872 DrvInst.exe Token: SeRestorePrivilege 2872 DrvInst.exe Token: SeRestorePrivilege 2872 DrvInst.exe Token: SeRestorePrivilege 2872 DrvInst.exe Token: SeRestorePrivilege 2872 DrvInst.exe Token: SeRestorePrivilege 2872 DrvInst.exe Token: SeLoadDriverPrivilege 2872 DrvInst.exe Token: SeLoadDriverPrivilege 2872 DrvInst.exe Token: SeLoadDriverPrivilege 2872 DrvInst.exe Token: SeRestorePrivilege 2960 msiexec.exe Token: SeTakeOwnershipPrivilege 2960 msiexec.exe Token: SeRestorePrivilege 2960 msiexec.exe Token: SeTakeOwnershipPrivilege 2960 msiexec.exe Token: SeRestorePrivilege 2960 msiexec.exe Token: SeTakeOwnershipPrivilege 2960 msiexec.exe Token: SeDebugPrivilege 1952 powershell.exe Token: SeRestorePrivilege 548 JkRyrlfVyEOH.exe Token: 35 548 JkRyrlfVyEOH.exe Token: SeSecurityPrivilege 548 JkRyrlfVyEOH.exe Token: SeSecurityPrivilege 548 JkRyrlfVyEOH.exe Token: SeRestorePrivilege 2960 msiexec.exe Token: SeTakeOwnershipPrivilege 2960 msiexec.exe Token: SeRestorePrivilege 2960 msiexec.exe Token: SeTakeOwnershipPrivilege 2960 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
msiexec.exepid Process 2380 msiexec.exe 2380 msiexec.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
msiexec.exeMsiExec.exedescription pid Process procid_target PID 2960 wrote to memory of 2600 2960 msiexec.exe 35 PID 2960 wrote to memory of 2600 2960 msiexec.exe 35 PID 2960 wrote to memory of 2600 2960 msiexec.exe 35 PID 2960 wrote to memory of 2600 2960 msiexec.exe 35 PID 2960 wrote to memory of 2600 2960 msiexec.exe 35 PID 2600 wrote to memory of 1952 2600 MsiExec.exe 37 PID 2600 wrote to memory of 1952 2600 MsiExec.exe 37 PID 2600 wrote to memory of 1952 2600 MsiExec.exe 37 PID 2600 wrote to memory of 548 2600 MsiExec.exe 39 PID 2600 wrote to memory of 548 2600 MsiExec.exe 39 PID 2600 wrote to memory of 548 2600 MsiExec.exe 39 PID 2600 wrote to memory of 548 2600 MsiExec.exe 39 PID 2600 wrote to memory of 2844 2600 MsiExec.exe 41 PID 2600 wrote to memory of 2844 2600 MsiExec.exe 41 PID 2600 wrote to memory of 2844 2600 MsiExec.exe 41 PID 2600 wrote to memory of 2844 2600 MsiExec.exe 41 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Chrmroe-intraller.msi1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2380
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\Windows\system32\MsiExec.exeC:\Windows\system32\MsiExec.exe -Embedding 33DB7DE124F3D4DC27A157C75271B729 M Global\MSI00002⤵
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\UtilizeDynamicWorker'3⤵
- Command and Scripting Interpreter: PowerShell
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1952
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C:\Program Files\UtilizeDynamicWorker\JkRyrlfVyEOH.exe"C:\Program Files\UtilizeDynamicWorker\JkRyrlfVyEOH.exe" x "C:\Program Files\UtilizeDynamicWorker\ZcOUMgAKFaEfsJXTUJeF" -o"C:\Program Files\UtilizeDynamicWorker\" -psiCMjwFfLqezcQPgBfEe -y3⤵
- Drops file in Program Files directory
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:548
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C:\Program Files\UtilizeDynamicWorker\qMdeNKsXYpNq.exe"C:\Program Files\UtilizeDynamicWorker\qMdeNKsXYpNq.exe" -number 276 -file file3 -mode mode3 -flag flag33⤵
- Drops file in Program Files directory
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2844
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C:\Program Files\UtilizeDynamicWorker\ChromeSetup.exe"C:\Program Files\UtilizeDynamicWorker\ChromeSetup.exe"3⤵
- Executes dropped EXE
PID:2784
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2524
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C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "000000000000038C" "00000000000003B8"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2872
Network
MITRE ATT&CK Enterprise v15
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Downloads
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Filesize
7KB
MD50b362e03286f89668010fc67f9cd108d
SHA16c0182aef4f889c5b0d5556f3dfc30a1973f15fb
SHA2562bfddc2e2e4c4cd869cf55b4292d9cf95847740ca5e8fd2fee6f47ac6d9e40cb
SHA512f8ef4dc97c568b8ca9b1492bb375b9206adaad05d7591597d34f1122077016d9fe99f7d27b9ba66d7098d189c389f7e01f63e3e790a5e23175b3f7861420d867
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Filesize
9.7MB
MD529c9848749d11cdac06f5c1ab27ae9e4
SHA1bb6b142e7b29e8f3a523bd238697622d828a9b5a
SHA25694b57aa9cb18f206c72031d9ac8ae1fd3dc00d9248f66cf2dc75593a156534e0
SHA512176073947ca2be3bf05834a07a64c3db0de7ed11d77704af862164bb91aabc5f08e7d5b53a7fc7bb67fc5d8480ab322272414b81d56d9a565339ea9ead1adb18
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Filesize
577KB
MD511fa744ebf6a17d7dd3c58dc2603046d
SHA1d99de792fd08db53bb552cd28f0080137274f897
SHA2561b16c41ae39b679384b06f1492b587b650716430ff9c2e079dca2ad1f62c952d
SHA512424196f2acf5b89807f4038683acc50e7604223fc630245af6bab0e0df923f8b1c49cb09ac709086568c214c3f53dcb7d6c32e8a54af222a3ff78cfab9c51670
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Filesize
4.3MB
MD5b9b51255b7e495877496c1e6758e3871
SHA10c042a1ef84828b4e0f2d4e6046197c3a5eb8a7b
SHA2567659a1bd1d45ee4dd54592de56ba0b669344cc205aa0894c4e98e2fb8003f268
SHA5127c7a5399fdac2d7ed176b438f9475a3da715fb16e09a0b71f208f34a5620baf84287e8d16a91fdcd84284b7babc94f65a134fa92ec19ce698f97153b64ea7b29
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Filesize
3.0MB
MD557761e35f3375adb749fb9e14f423a21
SHA15deb274e82085ad21911ce9abb91d466e556fb4a
SHA25608526d64f255bb798037b7f475bc8cad40a860e4fe68eeb52f9b9f0eb0ef0231
SHA512e1f6fa277e7f34b961b51065ae10c190d5a453b9188f5ee5ced62706136fbbd6727db48efdbea3599fb82f4c6485313674fa458e5b7f9bde6cb7f0664de81c1e
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Filesize
832KB
MD5d305d506c0095df8af223ac7d91ca327
SHA1679cb4c763c84e75ccb0fa3475bd6b7a36e81c4a
SHA256923111c7142b3dc783a3c722b19b8a21bcb78222d7a136ac33f0ca8a29f4cb66
SHA51294d369a4db88bff9556a1d7a7fb0188ed935c3592bae09335542c5502ec878e839177be63ac3ab4af75d4dc38a3a4f5d0fd423115ac72cf5dd710c59604db796
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Filesize
43.5MB
MD5113a2eab7ccf51501146194bbaadb175
SHA1de00c7a8ff5b49adec8bc44eba7f6332446f0e8f
SHA2564cab134dbaf1059613f44da615292af5713a0aa3a0185abda0cf1ebf8a7dc9a4
SHA512ce681034d9c3cad7367fa2a541401036651ce79385524b10f8ea0287c6c6e1bd307c82d339056d6f2e2fd48cbdd05e80650c1b5acb62b55772b4157d3ef9c13e
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Filesize
39.1MB
MD5a688d249c498d4d3b89ed876c8239520
SHA125bdaa9b0a339099e10cf9c26e8abdcd67a9e583
SHA256145f4e4d11e76a2612db5ffbfae8f9ab8e4385ff7660802ffd2f473c9dcb2a0d
SHA512ca24eee29e9ae1c919b98d1f5e41b96566c86b1e40e30f3f6c7fb5c7e4049f92fb64afa4c87e8e815d3926b9cac17d0347f1f9b69d06e01303ffcb1815efecc1