Analysis
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max time kernel
4s -
max time network
3s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04-12-2024 12:09
Static task
static1
General
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Target
027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.dll
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Size
353KB
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MD5
71b6a493388e7d0b40c83ce903bc6b04
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SHA1
34f917aaba5684fbe56d3c57d48ef2a1aa7cf06d
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SHA256
027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745
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SHA512
072205eca5099d9269f358fe534b370ff21a4f12d7938d6d2e2713f69310f0698e53b8aff062849f0b2a521f68bee097c1840993825d2a5a3aa8cf4145911c6f
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SSDEEP
6144:y/Bt80VmNTBo/x95ZjAetGDN3VFNq7pC+9OqFoK30b3ni5rdQY/CdUOs2:y/X4NTS/x9jNG+w+9OqFoK323qdQYKUG
Malware Config
Signatures
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Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
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Mimikatz family
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mimikatz is an open source tool to dump credentials on Windows 1 IoCs
Processes:
resource yara_rule behavioral1/files/0x000a000000016334-13.dat mimikatz -
Deletes itself 1 IoCs
Processes:
rundll32.exepid Process 2392 rundll32.exe -
Executes dropped EXE 1 IoCs
Processes:
C3CC.tmppid Process 944 C3CC.tmp -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exepid Process 2392 rundll32.exe 2392 rundll32.exe 2128 -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
rundll32.exedescription ioc Process File opened for modification \??\PhysicalDrive0 rundll32.exe -
Drops file in Program Files directory 64 IoCs
Processes:
rundll32.exedescription ioc Process File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\XmlFile.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\DISTLIST.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\EXITEM.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SIGN.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SMIMES.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\SAMPLES\SOLVSAMP.XLS rundll32.exe File opened for modification C:\Program Files\ShowSuspend.rtf rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\Words.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\DataSet.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\CNFRES.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKACC.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\AppConfigurationInternal.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\jvmticmlr.h rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\PDFSigQFormalRep.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SMIMEE.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Resource.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Text.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\win32\jni_md.h rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.PPT rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\INFOMAIL.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\ResourceInternal.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\classfile_constants.h rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\deploy\ffjcext.zip rundll32.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.cfg rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.XLS rundll32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\Web Server Extensions\14\BIN\1033\FPEXT.MSG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\OMSMMS.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASK.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\TextFile.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCalls.c rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\DefaultID.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\IPM.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\RESEND.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Form.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\MDIParent.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCalls.h rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\REC.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCHDREQ.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SECURE.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\CNFNOT.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKUPD.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AboutBox.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Dataset.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\jvmti.h rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\ENU\Dynamic.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Visualizer.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Dialog.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCHDCNCL.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AssemblyInfoInternal.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Class.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\amd64\jvm.cfg rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\APPT.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Interface.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861258748.profile.gz rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\AccessWeb\SERVWRAP.ASP rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\NOTE.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Sync Framework\v1.0\Documentation\1033\License Agreements\SynchronizationEula.rtf rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\SplashScreen.zip rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\etc\visualvm.conf rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\REPORT.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\Settings.zip rundll32.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\chrome.7z rundll32.exe -
Drops file in Windows directory 2 IoCs
Processes:
rundll32.exedescription ioc Process File created C:\Windows\027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745 rundll32.exe File created C:\Windows\dllhost.dat rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
rundll32.execmd.exeschtasks.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
rundll32.exeC3CC.tmppid Process 2392 rundll32.exe 944 C3CC.tmp 944 C3CC.tmp 944 C3CC.tmp 944 C3CC.tmp 944 C3CC.tmp -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
rundll32.exeC3CC.tmpdescription pid Process Token: SeShutdownPrivilege 2392 rundll32.exe Token: SeDebugPrivilege 2392 rundll32.exe Token: SeTcbPrivilege 2392 rundll32.exe Token: SeDebugPrivilege 944 C3CC.tmp -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
rundll32.exerundll32.execmd.exedescription pid Process procid_target PID 2148 wrote to memory of 2392 2148 rundll32.exe 30 PID 2148 wrote to memory of 2392 2148 rundll32.exe 30 PID 2148 wrote to memory of 2392 2148 rundll32.exe 30 PID 2148 wrote to memory of 2392 2148 rundll32.exe 30 PID 2148 wrote to memory of 2392 2148 rundll32.exe 30 PID 2148 wrote to memory of 2392 2148 rundll32.exe 30 PID 2148 wrote to memory of 2392 2148 rundll32.exe 30 PID 2392 wrote to memory of 2152 2392 rundll32.exe 31 PID 2392 wrote to memory of 2152 2392 rundll32.exe 31 PID 2392 wrote to memory of 2152 2392 rundll32.exe 31 PID 2392 wrote to memory of 2152 2392 rundll32.exe 31 PID 2392 wrote to memory of 944 2392 rundll32.exe 33 PID 2392 wrote to memory of 944 2392 rundll32.exe 33 PID 2392 wrote to memory of 944 2392 rundll32.exe 33 PID 2392 wrote to memory of 944 2392 rundll32.exe 33 PID 2152 wrote to memory of 2268 2152 cmd.exe 35 PID 2152 wrote to memory of 2268 2152 cmd.exe 35 PID 2152 wrote to memory of 2268 2152 cmd.exe 35 PID 2152 wrote to memory of 2268 2152 cmd.exe 35
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2148 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.dll,#12⤵
- Deletes itself
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2392 -
C:\Windows\SysWOW64\cmd.exe/c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 13:143⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 13:144⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2268
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C:\Users\Admin\AppData\Local\Temp\C3CC.tmp"C:\Users\Admin\AppData\Local\Temp\C3CC.tmp" \\.\pipe\{8DD8D5A8-A90B-4D3E-9DF2-6697FDDDC409}3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:944
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
55KB
MD57e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587