Analysis
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max time kernel
185s -
max time network
185s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16-11-2024 08:10
Static task
static1
Behavioral task
behavioral1
Sample
63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe
Resource
win7-20240903-en
General
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Target
63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe
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Size
390KB
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MD5
5b7e6e352bacc93f7b80bc968b6ea493
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SHA1
e686139d5ed8528117ba6ca68fe415e4fb02f2be
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SHA256
63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a
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SHA512
9d24af0cb00fb8a5e61e9d19cd603b5541a22ae6229c2acf498447e0e7d4145fee25c8ab9d5d5f18f554e6cbf8ca56b7ca3144e726d7dfd64076a42a25b3dfb6
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SSDEEP
12288:ef/X4NTS/x9jNG+w+9OqFoK323qdQYKU3:EXATS/x9jNg+95vdQa
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/0x000c00000001225a-15.dat mimikatz -
Executes dropped EXE 1 IoCs
Processes:
B4AF.tmppid Process 3032 B4AF.tmp -
Loads dropped DLL 3 IoCs
Processes:
rundll32.exepid Process 1712 rundll32.exe 1712 rundll32.exe 2256 -
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\Java\jdk1.7.0_80\include\win32\bridge\AccessBridgeCalls.c 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\IPM.CFG 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 Office\Office14\FORMS\1033\SMIMES.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 (x86)\Microsoft Office\Office14\FORMS\1033\OMSMMS.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\SCHDREQ.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\EmptyDatabase.zip 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 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\VisualBasic\1033\Dataset.zip 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 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\UserControl.zip 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\CSharp\1033\Class.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\AccessBridgeCallbacks.h rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\REPLTMPL.CFG 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\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\1033\PROTTPLV.PPT 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)\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\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861240389.profile.gz 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\IDTemplates\ENU\AdobeID.pdf 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\TASK.CFG rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\TASKDEC.CFG rundll32.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\jawt.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\FORMS\1033\REC.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\VisualBasic\1033\SplashScreen.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\plug_ins\Annotations\Stamps\ENU\Dynamic.pdf 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\SIGN.CFG 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\FORMS\1033\CNFNOT.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\RSSITEM.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 (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\VisualBasic\1033\AssemblyInfoInternal.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)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\DefaultID.pdf rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\OUTLPERF.H 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\DOC.CFG 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 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 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\1033\PROTTPLN.DOC rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\RCLRPT.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\Java\jdk1.7.0_80\include\classfile_constants.h 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 (x86)\Microsoft Office\Office14\FORMS\1033\TASKACC.CFG rundll32.exe -
Drops file in Windows directory 4 IoCs
Processes:
63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exerundll32.exedescription ioc Process File created C:\Windows\perfc.dat 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe File opened for modification C:\Windows\perfc.dat rundll32.exe File created C:\Windows\perfc rundll32.exe File created C:\Windows\dllhost.dat rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
schtasks.exe63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exerundll32.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.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.exeB4AF.tmppid Process 1712 rundll32.exe 3032 B4AF.tmp 3032 B4AF.tmp 3032 B4AF.tmp 3032 B4AF.tmp 3032 B4AF.tmp -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
rundll32.exeB4AF.tmpdescription pid Process Token: SeShutdownPrivilege 1712 rundll32.exe Token: SeDebugPrivilege 1712 rundll32.exe Token: SeTcbPrivilege 1712 rundll32.exe Token: SeDebugPrivilege 3032 B4AF.tmp -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exerundll32.execmd.exedescription pid Process procid_target PID 2176 wrote to memory of 1712 2176 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe 30 PID 2176 wrote to memory of 1712 2176 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe 30 PID 2176 wrote to memory of 1712 2176 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe 30 PID 2176 wrote to memory of 1712 2176 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe 30 PID 2176 wrote to memory of 1712 2176 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe 30 PID 2176 wrote to memory of 1712 2176 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe 30 PID 2176 wrote to memory of 1712 2176 63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe 30 PID 1712 wrote to memory of 356 1712 rundll32.exe 31 PID 1712 wrote to memory of 356 1712 rundll32.exe 31 PID 1712 wrote to memory of 356 1712 rundll32.exe 31 PID 1712 wrote to memory of 356 1712 rundll32.exe 31 PID 1712 wrote to memory of 3032 1712 rundll32.exe 33 PID 1712 wrote to memory of 3032 1712 rundll32.exe 33 PID 1712 wrote to memory of 3032 1712 rundll32.exe 33 PID 1712 wrote to memory of 3032 1712 rundll32.exe 33 PID 356 wrote to memory of 2760 356 cmd.exe 35 PID 356 wrote to memory of 2760 356 cmd.exe 35 PID 356 wrote to memory of 2760 356 cmd.exe 35 PID 356 wrote to memory of 2760 356 cmd.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe"C:\Users\Admin\AppData\Local\Temp\63545fa195488ff51955f09833332b9660d18f8afb16bdf579134661962e548a.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2176 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Windows\perfc.dat #12⤵
- 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:1712 -
C:\Windows\SysWOW64\cmd.exe/c schtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 09:143⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:356 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Create /SC once /TN "" /TR "C:\Windows\system32\shutdown.exe /r /f" /ST 09:144⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2760
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C:\Users\Admin\AppData\Local\Temp\B4AF.tmp"C:\Users\Admin\AppData\Local\Temp\B4AF.tmp" \\.\pipe\{20509939-67BE-4960-BC77-E7802D32AD1A}3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3032
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
353KB
MD571b6a493388e7d0b40c83ce903bc6b04
SHA134f917aaba5684fbe56d3c57d48ef2a1aa7cf06d
SHA256027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745
SHA512072205eca5099d9269f358fe534b370ff21a4f12d7938d6d2e2713f69310f0698e53b8aff062849f0b2a521f68bee097c1840993825d2a5a3aa8cf4145911c6f
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Filesize
55KB
MD57e37ab34ecdcc3e77e24522ddfd4852d
SHA138e2855e11e353cedf9a8a4f2f2747f1c5c07fcf
SHA25602ef73bd2458627ed7b397ec26ee2de2e92c71a0e7588f78734761d8edbdcd9f
SHA5121b037a2aa8bf951d2ffe2f724aa0b2fbb39c2173215806ba0327bda7b096301d887f9bb7db46f9e04584b16aa6b1aaeaf67f0ecf5f20eb02ceac27c8753ca587