Analysis
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max time kernel
144s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
11-02-2022 04:22
Static task
static1
Behavioral task
behavioral1
Sample
2c6adddd41b7a65affa11ccfe920ca871d5c62dd1894c54030c62c4405239bca.dll
Resource
win7-en-20211208
General
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Target
2c6adddd41b7a65affa11ccfe920ca871d5c62dd1894c54030c62c4405239bca.dll
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Size
1.1MB
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MD5
4633bfb75dd5432e9406603241cb9b05
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SHA1
a8418390c0d2f03bf3e895f6a5e5811f7795318e
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SHA256
2c6adddd41b7a65affa11ccfe920ca871d5c62dd1894c54030c62c4405239bca
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SHA512
22cff98cfeb8d159d3547c2adce9fad5d9aad59a67e412414a71087c55dd11bfa5959d428f38aaba8a111be98f33f54b73525b6cc5ad02db442f98efd09e3fe0
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
rundll32Srv.exeDesktopLayer.exepid process 448 rundll32Srv.exe 1708 DesktopLayer.exe -
Processes:
resource yara_rule C:\Windows\SysWOW64\rundll32Srv.exe upx C:\Windows\SysWOW64\rundll32Srv.exe upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/448-133-0x0000000000400000-0x000000000042E000-memory.dmp upx C:\Program Files (x86)\Microsoft\DesktopLayer.exe upx behavioral2/memory/1708-136-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe -
Drops file in Program Files directory 3 IoCs
Processes:
rundll32Srv.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\px412D.tmp rundll32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe -
Drops file in Windows directory 8 IoCs
Processes:
TiWorker.exesvchost.exedescription ioc process File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe -
Processes:
iexplore.exeIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "351318350" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{4930B5CE-8AF2-11EC-B9A4-E2544E0102A4} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
DesktopLayer.exepid process 1708 DesktopLayer.exe 1708 DesktopLayer.exe 1708 DesktopLayer.exe 1708 DesktopLayer.exe 1708 DesktopLayer.exe 1708 DesktopLayer.exe 1708 DesktopLayer.exe 1708 DesktopLayer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
iexplore.exepid process 1280 iexplore.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
svchost.exeTiWorker.exedescription pid process Token: SeShutdownPrivilege 3028 svchost.exe Token: SeCreatePagefilePrivilege 3028 svchost.exe Token: SeShutdownPrivilege 3028 svchost.exe Token: SeCreatePagefilePrivilege 3028 svchost.exe Token: SeShutdownPrivilege 3028 svchost.exe Token: SeCreatePagefilePrivilege 3028 svchost.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe Token: SeRestorePrivilege 4160 TiWorker.exe Token: SeSecurityPrivilege 4160 TiWorker.exe Token: SeBackupPrivilege 4160 TiWorker.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
iexplore.exepid process 1280 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
iexplore.exeIEXPLORE.EXEpid process 1280 iexplore.exe 1280 iexplore.exe 4456 IEXPLORE.EXE 4456 IEXPLORE.EXE 4456 IEXPLORE.EXE 4456 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exedescription pid process target process PID 4796 wrote to memory of 5088 4796 rundll32.exe rundll32.exe PID 4796 wrote to memory of 5088 4796 rundll32.exe rundll32.exe PID 4796 wrote to memory of 5088 4796 rundll32.exe rundll32.exe PID 5088 wrote to memory of 448 5088 rundll32.exe rundll32Srv.exe PID 5088 wrote to memory of 448 5088 rundll32.exe rundll32Srv.exe PID 5088 wrote to memory of 448 5088 rundll32.exe rundll32Srv.exe PID 448 wrote to memory of 1708 448 rundll32Srv.exe DesktopLayer.exe PID 448 wrote to memory of 1708 448 rundll32Srv.exe DesktopLayer.exe PID 448 wrote to memory of 1708 448 rundll32Srv.exe DesktopLayer.exe PID 1708 wrote to memory of 1280 1708 DesktopLayer.exe iexplore.exe PID 1708 wrote to memory of 1280 1708 DesktopLayer.exe iexplore.exe PID 1280 wrote to memory of 4456 1280 iexplore.exe IEXPLORE.EXE PID 1280 wrote to memory of 4456 1280 iexplore.exe IEXPLORE.EXE PID 1280 wrote to memory of 4456 1280 iexplore.exe IEXPLORE.EXE
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2c6adddd41b7a65affa11ccfe920ca871d5c62dd1894c54030c62c4405239bca.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2c6adddd41b7a65affa11ccfe920ca871d5c62dd1894c54030c62c4405239bca.dll,#12⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1280 CREDAT:17410 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Program Files (x86)\Microsoft\DesktopLayer.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Windows\SysWOW64\rundll32Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Windows\SysWOW64\rundll32Srv.exeMD5
ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/448-133-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/1708-135-0x0000000000480000-0x0000000000481000-memory.dmpFilesize
4KB
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memory/1708-136-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB
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memory/3028-137-0x00000253AD1A0000-0x00000253AD1B0000-memory.dmpFilesize
64KB
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memory/3028-138-0x00000253AD820000-0x00000253AD830000-memory.dmpFilesize
64KB
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memory/3028-139-0x00000253AFF20000-0x00000253AFF24000-memory.dmpFilesize
16KB