Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2024 06:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe
Resource
win7-20240903-en
General
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Target
2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe
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Size
2.1MB
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MD5
79093bebbb99bd56e6cb97c066dcfd74
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SHA1
201d492fd6d3f0aeed73defdfb03a996e9fde8c5
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SHA256
586317df8844d39323f92c8bc5d877628362309960459028a57d513e37ed1da7
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SHA512
f8431bd488871fa620d443f4f3f0cfb34f0e5e79d0c3a4d4636bb92f3dd6aa1f4915758957943f8c8ac7e513ea0f0b223c4568e45bdf5c1dc68c0d740ee5f0da
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SSDEEP
49152:ipp5LM0nEKNapEJBk9Xe23eWyg4+5M7XHq18pqXuA600xuRAKU:iX5LM0nEKspEJme23elb+W7Xg8pqXs0X
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 2 IoCs
Processes:
2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exeDesktopLayer.exepid process 3652 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe 2072 DesktopLayer.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe upx behavioral2/memory/2072-16-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2072-14-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/2072-12-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3652-7-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral2/memory/3652-4-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
Processes:
2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\px8482.tmp 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.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:
2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exeDesktopLayer.exeIEXPLORE.EXEdescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DesktopLayer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2011826809" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" 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 Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE 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\LastUpdateHighDateTime = "31145329" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145329" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31145329" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch 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\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 (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 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "439108492" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main 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 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\LastCheckForUpdateLowDateTime = "2011826809" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A36D6C7B-A964-11EF-B9B6-C67090DD1599} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2013233154" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2013233154" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145329" 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 (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\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 2072 DesktopLayer.exe 2072 DesktopLayer.exe 2072 DesktopLayer.exe 2072 DesktopLayer.exe 2072 DesktopLayer.exe 2072 DesktopLayer.exe 2072 DesktopLayer.exe 2072 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 920 iexplore.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exeiexplore.exeIEXPLORE.EXEpid process 5016 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe 920 iexplore.exe 920 iexplore.exe 5020 IEXPLORE.EXE 5020 IEXPLORE.EXE 5020 IEXPLORE.EXE 5020 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 5016 wrote to memory of 3652 5016 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe PID 5016 wrote to memory of 3652 5016 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe PID 5016 wrote to memory of 3652 5016 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe PID 3652 wrote to memory of 2072 3652 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe DesktopLayer.exe PID 3652 wrote to memory of 2072 3652 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe DesktopLayer.exe PID 3652 wrote to memory of 2072 3652 2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe DesktopLayer.exe PID 2072 wrote to memory of 920 2072 DesktopLayer.exe iexplore.exe PID 2072 wrote to memory of 920 2072 DesktopLayer.exe iexplore.exe PID 920 wrote to memory of 5020 920 iexplore.exe IEXPLORE.EXE PID 920 wrote to memory of 5020 920 iexplore.exe IEXPLORE.EXE PID 920 wrote to memory of 5020 920 iexplore.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silence.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\Users\Admin\AppData\Local\Temp\2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exeC:\Users\Admin\AppData\Local\Temp\2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3652 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2072 -
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:920 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:920 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:5020
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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
MD5a5d59031144ac6ab3dbf6358566aa618
SHA1f6fb4567bbfd07f0df27083b36a179e00c263c5d
SHA256039ec47b1e431e2555dc8da6bff06a3c78b242c01c9553286128c0f94d4c55ff
SHA512a3049b32be6a7e8a4b1522d32df205e6433fa81fd540893ca917eb6ca33f51f79ec5571f144727bf145f00a457b4705942f0c55c85ddad96a227465345fc866f
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD52bf25862909654cb40db22b82c74027e
SHA1d95efb879cf2bbf27f6bf315c1a3877451dec147
SHA2561964ce55b88b6eb5c9315cebb90c2eaa9947d58fc3654be7065af42e6320a51d
SHA5128e15ac4c0b298970fae1c99f186698b8827ed9f7395c64f23462247f7026f40b0acd88177edc87cf1308e31c83ad41abb9bbd74e01bcdf0bb96e4c5b274e7f6e
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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C:\Users\Admin\AppData\Local\Temp\2024-11-23_79093bebbb99bd56e6cb97c066dcfd74_icedid_ramnit_silenceSrv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a