Analysis
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max time kernel
94s -
max time network
112s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
01-01-2025 00:04
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
61843100f540ea0ffc3aee0acbe7a38b191a6068ef55f4c88af45267f9cd4096N.dll
Resource
win7-20240729-en
windows7-x64
14 signatures
120 seconds
General
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Target
61843100f540ea0ffc3aee0acbe7a38b191a6068ef55f4c88af45267f9cd4096N.dll
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Size
300KB
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MD5
26c7062d743af471972a2b061f189400
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SHA1
3bf5ed70b567ce780f69cb988bd2178dcfede085
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SHA256
61843100f540ea0ffc3aee0acbe7a38b191a6068ef55f4c88af45267f9cd4096
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SHA512
7df8fd8f4698594e18fcd4c16218129845cf000510fa467c5ec7ea49ac83e5f4a087d583c37b87dea0ea5b72c7d1862a517a35eba433c245c3261afc7035c9ae
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SSDEEP
6144:luJpajNliihoAIWOpF0L4twv1+jnqwoyfmr49okkKXNXHGE:lOuCihoAFOpFe4t41+Xwr4hkK92
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 1616 regsvr32Srv.exe 3120 DesktopLayer.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\regsvr32Srv.exe regsvr32.exe -
resource yara_rule behavioral2/memory/1616-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3120-16-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3120-17-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3120-13-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/files/0x000d000000023b84-12.dat upx behavioral2/memory/3120-11-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/1616-8-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px7436.tmp regsvr32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe regsvr32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe regsvr32Srv.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32Srv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3780810935" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153120" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3780810935" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0B11D3E9-C7D4-11EF-B9B6-622000771059} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153120" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442454875" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe -
Modifies registry class 19 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\61843100f540ea0ffc3aee0acbe7a38b191a6068ef55f4c88af45267f9cd4096N.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{760A8F35-97E7-479D-AAF5-DA9EFF95D751} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\FriendlyName = "Haali Video Renderer" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\CLSID = "{760A8F35-97E7-479D-AAF5-DA9EFF95D751}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\ = "Haali Video Renderer Image Properties" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\ = "Haali Video Renderer" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\ = "Haali Video Renderer Properties" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\61843100f540ea0ffc3aee0acbe7a38b191a6068ef55f4c88af45267f9cd4096N.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\61843100f540ea0ffc3aee0acbe7a38b191a6068ef55f4c88af45267f9cd4096N.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32 regsvr32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\FilterData = 02000000000020000100000000000000307069330000000000000000010000000000000000000000307479330000000038000000480000007669647300001000800000aa00389b717eeb36e44f52ce119f530020af0ba770 regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3120 DesktopLayer.exe 3120 DesktopLayer.exe 3120 DesktopLayer.exe 3120 DesktopLayer.exe 3120 DesktopLayer.exe 3120 DesktopLayer.exe 3120 DesktopLayer.exe 3120 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2428 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2428 iexplore.exe 2428 iexplore.exe 4808 IEXPLORE.EXE 4808 IEXPLORE.EXE 4808 IEXPLORE.EXE 4808 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1940 wrote to memory of 2908 1940 regsvr32.exe 83 PID 1940 wrote to memory of 2908 1940 regsvr32.exe 83 PID 1940 wrote to memory of 2908 1940 regsvr32.exe 83 PID 2908 wrote to memory of 1616 2908 regsvr32.exe 84 PID 2908 wrote to memory of 1616 2908 regsvr32.exe 84 PID 2908 wrote to memory of 1616 2908 regsvr32.exe 84 PID 1616 wrote to memory of 3120 1616 regsvr32Srv.exe 85 PID 1616 wrote to memory of 3120 1616 regsvr32Srv.exe 85 PID 1616 wrote to memory of 3120 1616 regsvr32Srv.exe 85 PID 3120 wrote to memory of 2428 3120 DesktopLayer.exe 86 PID 3120 wrote to memory of 2428 3120 DesktopLayer.exe 86 PID 2428 wrote to memory of 4808 2428 iexplore.exe 87 PID 2428 wrote to memory of 4808 2428 iexplore.exe 87 PID 2428 wrote to memory of 4808 2428 iexplore.exe 87
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\61843100f540ea0ffc3aee0acbe7a38b191a6068ef55f4c88af45267f9cd4096N.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\61843100f540ea0ffc3aee0acbe7a38b191a6068ef55f4c88af45267f9cd4096N.dll2⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Windows\SysWOW64\regsvr32Srv.exeC:\Windows\SysWOW64\regsvr32Srv.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1616 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3120 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2428 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2428 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4808
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee