Analysis
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max time kernel
150s -
max time network
152s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
26-07-2021 12:41
Static task
static1
Behavioral task
behavioral1
Sample
027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.sample.dll
Resource
win7v20210410
Behavioral task
behavioral2
Sample
027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.sample.dll
Resource
win10v20210408
General
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Target
027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.sample.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
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
9C1.tmppid process 1800 9C1.tmp -
Deletes itself 1 IoCs
Processes:
rundll32.exepid process 1936 rundll32.exe -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exepid process 1936 rundll32.exe 1936 rundll32.exe 1736 -
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.
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 Office\Office14\FORMS\1033\POSTIT.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\TASKACC.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\Internet Explorer\en-US\eula.rtf 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\MDIParent.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)\Internet Explorer\en-US\eula.rtf 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\Java\jre7\lib\amd64\jvm.cfg 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)\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\jawt_md.h 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\ResourceInternal.zip rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\EmptyDatabase.zip 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)\Adobe\Reader 9.0\Reader\PDFSigQFormalRep.pdf 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\INFOMAIL.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AssemblyInfo.zip 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\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCalls.h 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)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\ENU\Dynamic.pdf 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)\Microsoft Office\Office14\FORMS\1033\ACTIVITY.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\OSPP.VBS 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\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861240389.profile.gz 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 (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\include\win32\bridge\AccessBridgeCalls.c rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.PPT 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\Java\jdk1.7.0_80\jre\lib\deploy\ffjcext.zip 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)\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\1033\PROTTPLN.PPT 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 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\CSharp\1033\UserControl.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\SECURE.CFG 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\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgePackages.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\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\REC.CFG 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\Java\jdk1.7.0_80\include\jvmti.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\1423861240811.profile.gz 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)\Microsoft Office\Office14\FORMS\1033\NOTE.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCHDRESP.CFG 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 Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\AssemblyInfoInternal.zip 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\Java\jdk1.7.0_80\include\jdwpTransport.h 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\APPT.CFG rundll32.exe -
Drops file in Windows directory 2 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Windows\027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.sample rundll32.exe File created C:\Windows\dllhost.dat rundll32.exe -
Creates scheduled task(s) 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.exe9C1.tmppid process 1936 rundll32.exe 1800 9C1.tmp 1800 9C1.tmp 1800 9C1.tmp 1800 9C1.tmp 1800 9C1.tmp -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
rundll32.exe9C1.tmpdescription pid process Token: SeShutdownPrivilege 1936 rundll32.exe Token: SeDebugPrivilege 1936 rundll32.exe Token: SeTcbPrivilege 1936 rundll32.exe Token: SeDebugPrivilege 1800 9C1.tmp -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
rundll32.exerundll32.execmd.exedescription pid process target process PID 452 wrote to memory of 1936 452 rundll32.exe rundll32.exe PID 452 wrote to memory of 1936 452 rundll32.exe rundll32.exe PID 452 wrote to memory of 1936 452 rundll32.exe rundll32.exe PID 452 wrote to memory of 1936 452 rundll32.exe rundll32.exe PID 452 wrote to memory of 1936 452 rundll32.exe rundll32.exe PID 452 wrote to memory of 1936 452 rundll32.exe rundll32.exe PID 452 wrote to memory of 1936 452 rundll32.exe rundll32.exe PID 1936 wrote to memory of 1792 1936 rundll32.exe cmd.exe PID 1936 wrote to memory of 1792 1936 rundll32.exe cmd.exe PID 1936 wrote to memory of 1792 1936 rundll32.exe cmd.exe PID 1936 wrote to memory of 1792 1936 rundll32.exe cmd.exe PID 1936 wrote to memory of 1800 1936 rundll32.exe 9C1.tmp PID 1936 wrote to memory of 1800 1936 rundll32.exe 9C1.tmp PID 1936 wrote to memory of 1800 1936 rundll32.exe 9C1.tmp PID 1936 wrote to memory of 1800 1936 rundll32.exe 9C1.tmp PID 1792 wrote to memory of 1100 1792 cmd.exe schtasks.exe PID 1792 wrote to memory of 1100 1792 cmd.exe schtasks.exe PID 1792 wrote to memory of 1100 1792 cmd.exe schtasks.exe PID 1792 wrote to memory of 1100 1792 cmd.exe schtasks.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.sample.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745.sample.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 13:603⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 13:604⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\9C1.tmp"C:\Users\Admin\AppData\Local\Temp\9C1.tmp" \\.\pipe\{0B2AD095-43A6-4DD2-87BE-93EF812360F5}3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\9C1.tmpMD5
7e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587
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\Users\Admin\AppData\Local\Temp\9C1.tmpMD5
7e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587
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\Users\Admin\AppData\Local\Temp\9C1.tmpMD5
7e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587
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\Users\Admin\AppData\Local\Temp\9C1.tmpMD5
7e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587
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memory/1100-73-0x0000000000000000-mapping.dmp
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memory/1792-67-0x0000000000000000-mapping.dmp
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memory/1800-70-0x0000000000000000-mapping.dmp
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memory/1936-59-0x0000000000000000-mapping.dmp
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memory/1936-60-0x00000000753E1000-0x00000000753E3000-memory.dmpFilesize
8KB
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memory/1936-61-0x0000000001EB0000-0x0000000001F0E000-memory.dmpFilesize
376KB
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memory/1936-66-0x0000000001EB0000-0x0000000001F0E000-memory.dmpFilesize
376KB