Analysis
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max time kernel
96s -
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
31-12-2024 03:15
Static task
static1
Behavioral task
behavioral1
Sample
e5420b10bb01060c0fe6c0017f016292c144845a553dbe96396f499342084565.dll
Resource
win7-20240708-en
General
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Target
e5420b10bb01060c0fe6c0017f016292c144845a553dbe96396f499342084565.dll
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Size
300KB
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MD5
58aa5821a3e73f18484cf82e7bbe6aa4
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SHA1
c4a4b54e91adc98c829bf7dcf232324ac5808dab
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SHA256
e5420b10bb01060c0fe6c0017f016292c144845a553dbe96396f499342084565
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SHA512
1001b647e2ad9211c35462268ac1eddfaac9b64ac11c8596a7d82f13f1e3424bc49f84168fbef693a2f4764c2a0748d75e2b5be1e734ddef67691127ba483a3e
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SSDEEP
6144:luJpajNliihoAIWOpF0L4twv1+jnqwoyfmr49okkKXNXHGEa:lOuCihoAFOpFe4t41+Xwr4hkK92p
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
pid Process 4272 regsvr32Srv.exe 1580 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/files/0x0008000000023c9e-3.dat upx behavioral2/memory/4272-4-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/4272-8-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/1580-12-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/1580-16-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/1580-14-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px9EA1.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 regsvr32.exe 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 -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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 (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152946" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1257767866" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{76685451-C725-11EF-AEE2-CAFD856C81B1} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1254798860" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31152946" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442379893" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1254798860" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152946" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe -
Modifies registry class 19 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32 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\{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\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\InprocServer32 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}\ = "Haali Video Renderer Image Properties" 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 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}\InprocServer32\ThreadingModel = "Both" 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\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32\ThreadingModel = "Both" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{760A8F35-97E7-479D-AAF5-DA9EFF95D751}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e5420b10bb01060c0fe6c0017f016292c144845a553dbe96396f499342084565.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8E8B4A31-408B-4929-86A4-A9FA9F01BA43}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e5420b10bb01060c0fe6c0017f016292c144845a553dbe96396f499342084565.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A36C253D-CEE4-4BCA-9CC2-E03CF6BBB054}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e5420b10bb01060c0fe6c0017f016292c144845a553dbe96396f499342084565.dll" 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 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\ThreadingModel = "Both" 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 -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1580 DesktopLayer.exe 1580 DesktopLayer.exe 1580 DesktopLayer.exe 1580 DesktopLayer.exe 1580 DesktopLayer.exe 1580 DesktopLayer.exe 1580 DesktopLayer.exe 1580 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4484 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4484 iexplore.exe 4484 iexplore.exe 816 IEXPLORE.EXE 816 IEXPLORE.EXE 816 IEXPLORE.EXE 816 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1292 wrote to memory of 1824 1292 regsvr32.exe 83 PID 1292 wrote to memory of 1824 1292 regsvr32.exe 83 PID 1292 wrote to memory of 1824 1292 regsvr32.exe 83 PID 1824 wrote to memory of 4272 1824 regsvr32.exe 84 PID 1824 wrote to memory of 4272 1824 regsvr32.exe 84 PID 1824 wrote to memory of 4272 1824 regsvr32.exe 84 PID 4272 wrote to memory of 1580 4272 regsvr32Srv.exe 85 PID 4272 wrote to memory of 1580 4272 regsvr32Srv.exe 85 PID 4272 wrote to memory of 1580 4272 regsvr32Srv.exe 85 PID 1580 wrote to memory of 4484 1580 DesktopLayer.exe 86 PID 1580 wrote to memory of 4484 1580 DesktopLayer.exe 86 PID 4484 wrote to memory of 816 4484 iexplore.exe 87 PID 4484 wrote to memory of 816 4484 iexplore.exe 87 PID 4484 wrote to memory of 816 4484 iexplore.exe 87
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\e5420b10bb01060c0fe6c0017f016292c144845a553dbe96396f499342084565.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1292 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\e5420b10bb01060c0fe6c0017f016292c144845a553dbe96396f499342084565.dll2⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1824 -
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:4272 -
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:1580 -
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:4484 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4484 CREDAT:17410 /prefetch:26⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5e5e877bcc2542ab8629d8f34bafcd7f4
SHA18f618efa1584268e9eafd2b01c2a2ac006113c01
SHA2565e63bcec102963b96b1f7d08ec512431a0ba748f90134dc51a05046296541e9e
SHA51279153f941ae2cc4a5649ac729f03dd3f98df24d5084e36d14467b2a859e6d63fc4167feac24e7b519a9e179fb243447fe6d09519169b11e3151d5cc467e4c9d4
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5269338da77ec46bdfb2c1066423e9024
SHA101d6e3398c3d9cb4fa4bb4f9a8c7ecf9c1a7f8d5
SHA2569bb25a542f14726f59107efc5fbdc26b4fe92ac42174ccc08c8c5aa67de0f8b9
SHA5122a042cf5d7e8e5a85bb642d1383d67d9eddbca167fccb96e553286c4843d71f65d8bd0f2192a0b2cf049cb875d7666b46cc7a32620940e492da48005a43f7945
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a