Resubmissions
30-08-2024 13:08
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240830-p4dbcsvdle 1030-08-2024 12:50
240830-p25mtswdkr 1030-08-2024 12:48
240830-p126bawcpr 10Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
30-08-2024 12:48
Static task
static1
Behavioral task
behavioral1
Sample
027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.dll
Resource
win7-20240704-en
windows7-x64
17 signatures
150 seconds
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 is an open source tool to dump credentials on Windows 1 IoCs
resource yara_rule behavioral1/files/0x0015000000018b3e-13.dat mimikatz -
Deletes itself 1 IoCs
pid Process 2536 rundll32.exe -
Executes dropped EXE 1 IoCs
pid Process 2364 E791.tmp -
Loads dropped DLL 3 IoCs
pid Process 2536 rundll32.exe 2536 rundll32.exe 2848 Process not Found -
Reads user/profile data of web browsers 2 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.
description ioc Process File opened for modification \??\PhysicalDrive0 rundll32.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process 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\CSharp\1033\SettingsInternal.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\UserControl.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Explorer.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)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\AdobeID.pdf 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\CNFRES.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Form.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\Module.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\jawt_md.h rundll32.exe File opened for modification C:\Program Files\Java\jre7\lib\deploy\ffjcext.zip 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\1033\PROTTPLV.XLS rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCallbacks.h 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\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861261279.profile.gz rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AppConfigInternal.zip 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 (x86)\Microsoft Office\Office14\FORMS\1033\CONTACT.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCHDREST.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\Text.zip rundll32.exe File opened for modification C:\Program Files (x86)\Internet Explorer\en-US\eula.rtf 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\SHARING.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKREQ.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\OSPP.VBS rundll32.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\ENUtxt.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\CGMIMP32.CFG 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\OOFTMPL.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 Office\Office14\FORMS\1033\SCHDCNCL.CFG 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\SplitPublish.docx 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\REMOTE.CFG 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)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\ENU\StandardBusiness.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\RSSITEM.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCHDRESN.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 Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AppConfig.zip rundll32.exe 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\Java\jdk1.7.0_80\include\jvmticmlr.h 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\FORMS\1033\POST.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 Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\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 (x86)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\Words.pdf 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\AssemblyInfoInternal.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SECREC.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\UserControl.zip 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 (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\1033\PROTTPLN.XLS 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 Office\Office14\AccessWeb\SERVWRAP.ASP rundll32.exe -
Drops file in Windows directory 2 IoCs
description 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.
description 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.
pid Process 2756 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2536 rundll32.exe 2364 E791.tmp 2364 E791.tmp 2364 E791.tmp 2364 E791.tmp 2364 E791.tmp 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2596 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeShutdownPrivilege 2536 rundll32.exe Token: SeDebugPrivilege 2536 rundll32.exe Token: SeTcbPrivilege 2536 rundll32.exe Token: SeDebugPrivilege 2364 E791.tmp Token: SeDebugPrivilege 2596 taskmgr.exe -
Suspicious use of FindShellTrayWindow 42 IoCs
pid Process 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe -
Suspicious use of SendNotifyMessage 42 IoCs
pid Process 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe 2596 taskmgr.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 2520 wrote to memory of 2536 2520 rundll32.exe 30 PID 2520 wrote to memory of 2536 2520 rundll32.exe 30 PID 2520 wrote to memory of 2536 2520 rundll32.exe 30 PID 2520 wrote to memory of 2536 2520 rundll32.exe 30 PID 2520 wrote to memory of 2536 2520 rundll32.exe 30 PID 2520 wrote to memory of 2536 2520 rundll32.exe 30 PID 2520 wrote to memory of 2536 2520 rundll32.exe 30 PID 2536 wrote to memory of 2964 2536 rundll32.exe 31 PID 2536 wrote to memory of 2964 2536 rundll32.exe 31 PID 2536 wrote to memory of 2964 2536 rundll32.exe 31 PID 2536 wrote to memory of 2964 2536 rundll32.exe 31 PID 2536 wrote to memory of 2364 2536 rundll32.exe 32 PID 2536 wrote to memory of 2364 2536 rundll32.exe 32 PID 2536 wrote to memory of 2364 2536 rundll32.exe 32 PID 2536 wrote to memory of 2364 2536 rundll32.exe 32 PID 2964 wrote to memory of 2756 2964 cmd.exe 35 PID 2964 wrote to memory of 2756 2964 cmd.exe 35 PID 2964 wrote to memory of 2756 2964 cmd.exe 35 PID 2964 wrote to memory of 2756 2964 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:2520 -
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:2536 -
C:\Windows\SysWOW64\cmd.exe/c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 13:513⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2964 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 13:514⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2756
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C:\Users\Admin\AppData\Local\Temp\E791.tmp"C:\Users\Admin\AppData\Local\Temp\E791.tmp" \\.\pipe\{536CA055-E62E-4344-B3E9-562C4370AB7D}3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2364
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2596
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
55KB
MD57e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587