Analysis
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max time kernel
93s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
26-12-2024 04:20
Static task
static1
Behavioral task
behavioral1
Sample
9b06af982da13a032e29a0493fb0645b821ab379e6fc69d1c755a8b9d4cfafb7.dll
Resource
win7-20240903-en
General
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Target
9b06af982da13a032e29a0493fb0645b821ab379e6fc69d1c755a8b9d4cfafb7.dll
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Size
513KB
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MD5
dc8bc6ccd74d328c9f641c282a287feb
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SHA1
a56f0a1acc9efb8c3e3de608bb8a2e840073f5c3
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SHA256
9b06af982da13a032e29a0493fb0645b821ab379e6fc69d1c755a8b9d4cfafb7
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SHA512
36cc0402fa295a6bcaa43da6305aa2ea1a8547bc6985b38bb465c53217c05b1819c28818533ef80c0b056b8d5bfc2bc66ac95683f4a11c78e05d29a8a9a8036f
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SSDEEP
6144:el2uHQRByruC6NFpkt4nuTU1d76R27lpiRHfdXluzGjJOCcoGFccMWDOJraQ3wBF:en40IOc/RqAzx5
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 1 IoCs
pid Process 3464 rundll32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
resource yara_rule behavioral2/memory/3464-9-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/3464-12-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/3464-17-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/3464-16-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/3464-14-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/3464-13-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/3464-7-0x0000000000400000-0x000000000041A000-memory.dmp upx behavioral2/memory/3464-10-0x0000000000400000-0x000000000041A000-memory.dmp upx -
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 rundll32mgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{BFC61396-C340-11EF-BEF1-E26222BAF6A3} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2487555035" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31151949" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2487555035" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2489899103" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31151949" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2489899103" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31151949" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31151949" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441951808" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3464 rundll32mgr.exe 3464 rundll32mgr.exe 3464 rundll32mgr.exe 3464 rundll32mgr.exe 3464 rundll32mgr.exe 3464 rundll32mgr.exe 3464 rundll32mgr.exe 3464 rundll32mgr.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3464 rundll32mgr.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1604 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1604 iexplore.exe 1604 iexplore.exe 2524 IEXPLORE.EXE 2524 IEXPLORE.EXE 2524 IEXPLORE.EXE 2524 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3464 rundll32mgr.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 948 wrote to memory of 988 948 rundll32.exe 82 PID 948 wrote to memory of 988 948 rundll32.exe 82 PID 948 wrote to memory of 988 948 rundll32.exe 82 PID 988 wrote to memory of 3464 988 rundll32.exe 83 PID 988 wrote to memory of 3464 988 rundll32.exe 83 PID 988 wrote to memory of 3464 988 rundll32.exe 83 PID 3464 wrote to memory of 1604 3464 rundll32mgr.exe 84 PID 3464 wrote to memory of 1604 3464 rundll32mgr.exe 84 PID 1604 wrote to memory of 2524 1604 iexplore.exe 85 PID 1604 wrote to memory of 2524 1604 iexplore.exe 85 PID 1604 wrote to memory of 2524 1604 iexplore.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9b06af982da13a032e29a0493fb0645b821ab379e6fc69d1c755a8b9d4cfafb7.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:948 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9b06af982da13a032e29a0493fb0645b821ab379e6fc69d1c755a8b9d4cfafb7.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:988 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3464 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1604 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1604 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2524
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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
MD573d8dd7eaa8896905e31f1960f51ece1
SHA1164e031603e75d95091220c5ff0d695547f6d3ae
SHA2569ff75ab638fe252bd0d04aea3f0ce38270ffc8df5db9399f9ea45aaef196dddc
SHA5124879585482992d7ea3ee02775b74592b06daab32a63dc7700dd4da40c45a524f3bcfc2beff928a85563f09ad0438be5b3e458bc3d0cd08ad146d416fec014a04
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5a5b0d38cf4bce8ec94c146a5170ea1b3
SHA1f1c556265b1f44ce304d424a417f9ef122beb6c7
SHA2562c72ab4477fef3ecf7fb40f8ec8f2bd08097fbc4749a7d15d873a2e9922e37ae
SHA512b5b3734b9432897227e7f1c033e43ecff6f742d0fa949735cd5ad2bb1fa17b39e1543fab140fd41a57843f1ab453bd4646c97ba784da6c8fc70a9fee5edfb205
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
88KB
MD5fe76e62c9c90a4bea8f2c464dc867719
SHA1f0935e8b6c22dea5c6e9d4127f5c10363deba541
SHA2565705c47b229c893f67741480ed5e3bce60597b2bb0dd755fb1f499a23888d7d6
SHA5127d6d5bfb10df493ffea7132807be417b5a283d34a1cd49042390b2b927691fd53ecf8eee459c727844395f34e4230b2cd85b38b7fb7df0a3638b244d0c3f6394