Analysis
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max time kernel
135s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
03-11-2024 09:00
Static task
static1
Behavioral task
behavioral1
Sample
29549b75a198ad3aee4f8b9ea328bc9a73eb0e0d07e36775438bbe7268d453f9.msi
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
29549b75a198ad3aee4f8b9ea328bc9a73eb0e0d07e36775438bbe7268d453f9.msi
Resource
win10v2004-20241007-en
General
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Target
29549b75a198ad3aee4f8b9ea328bc9a73eb0e0d07e36775438bbe7268d453f9.msi
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Size
1.6MB
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MD5
9775cb36162fab5d8dbe372cd5910ba7
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SHA1
a06d73422ecb931b6b6ae9f2af5f08f50b3d52dc
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SHA256
29549b75a198ad3aee4f8b9ea328bc9a73eb0e0d07e36775438bbe7268d453f9
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SHA512
42cc3d3746fc416097b7de340cf1782febe957ee45e17b5c368f6509bb5112cfdd808d223283ef424b5ee1aab0dddc78562a778f196f7962c3f27839f4f60564
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SSDEEP
49152:gfj3YhW8zBQSc0ZnSKSZKumZr7AlFBBdtM:cYY0ZnQK/AlprM
Malware Config
Signatures
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Brute Ratel C4
A customized command and control framework for red teaming and adversary simulation.
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Bruteratel family
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Detect BruteRatel badger 3 IoCs
resource yara_rule behavioral2/memory/1672-45-0x0000000273F40000-0x0000000273F8A000-memory.dmp family_bruteratel behavioral2/memory/1672-46-0x0000000273F40000-0x0000000273F8A000-memory.dmp family_bruteratel behavioral2/memory/1672-62-0x0000000273F40000-0x0000000273F8A000-memory.dmp family_bruteratel -
Blocklisted process makes network request 32 IoCs
flow pid Process 38 1672 rundll32.exe 39 1672 rundll32.exe 40 1672 rundll32.exe 43 1672 rundll32.exe 44 1672 rundll32.exe 45 1672 rundll32.exe 46 1672 rundll32.exe 47 1672 rundll32.exe 48 1672 rundll32.exe 50 1672 rundll32.exe 64 1672 rundll32.exe 65 1672 rundll32.exe 66 1672 rundll32.exe 67 1672 rundll32.exe 68 1672 rundll32.exe 69 1672 rundll32.exe 70 1672 rundll32.exe 78 1672 rundll32.exe 96 1672 rundll32.exe 97 1672 rundll32.exe 98 1672 rundll32.exe 99 1672 rundll32.exe 100 1672 rundll32.exe 101 1672 rundll32.exe 102 1672 rundll32.exe 103 1672 rundll32.exe 104 1672 rundll32.exe 105 1672 rundll32.exe 106 1672 rundll32.exe 107 1672 rundll32.exe 108 1672 rundll32.exe 109 1672 rundll32.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\Y: msiexec.exe -
Drops file in Windows directory 12 IoCs
description ioc Process File opened for modification C:\Windows\Installer\MSIE850.tmp msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File created C:\Windows\Installer\SourceHash{61449C75-AB36-4299-A465-A142FC439D7F} msiexec.exe File opened for modification C:\Windows\Installer\MSIEA17.tmp msiexec.exe File created C:\Windows\Installer\e57e60a.msi msiexec.exe File opened for modification C:\Windows\Installer\e57e60a.msi msiexec.exe File opened for modification C:\Windows\Installer\MSIE82F.tmp msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSIE8FC.tmp msiexec.exe File opened for modification C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log msiexec.exe File opened for modification C:\Windows\Installer\MSIE687.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIE7C1.tmp msiexec.exe -
Executes dropped EXE 1 IoCs
pid Process 4320 MSIEA17.tmp -
Loads dropped DLL 6 IoCs
pid Process 2980 MsiExec.exe 2980 MsiExec.exe 2980 MsiExec.exe 2980 MsiExec.exe 2732 rundll32.exe 1672 rundll32.exe -
Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
pid Process 2912 msiexec.exe -
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 MsiExec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSIEA17.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Checks SCSI registry key(s) 3 TTPs 5 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters vssvc.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr vssvc.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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 vssvc.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 vssvc.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 2304 msiexec.exe 2304 msiexec.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe 1672 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
description pid Process Token: SeShutdownPrivilege 2912 msiexec.exe Token: SeIncreaseQuotaPrivilege 2912 msiexec.exe Token: SeSecurityPrivilege 2304 msiexec.exe Token: SeCreateTokenPrivilege 2912 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 2912 msiexec.exe Token: SeLockMemoryPrivilege 2912 msiexec.exe Token: SeIncreaseQuotaPrivilege 2912 msiexec.exe Token: SeMachineAccountPrivilege 2912 msiexec.exe Token: SeTcbPrivilege 2912 msiexec.exe Token: SeSecurityPrivilege 2912 msiexec.exe Token: SeTakeOwnershipPrivilege 2912 msiexec.exe Token: SeLoadDriverPrivilege 2912 msiexec.exe Token: SeSystemProfilePrivilege 2912 msiexec.exe Token: SeSystemtimePrivilege 2912 msiexec.exe Token: SeProfSingleProcessPrivilege 2912 msiexec.exe Token: SeIncBasePriorityPrivilege 2912 msiexec.exe Token: SeCreatePagefilePrivilege 2912 msiexec.exe Token: SeCreatePermanentPrivilege 2912 msiexec.exe Token: SeBackupPrivilege 2912 msiexec.exe Token: SeRestorePrivilege 2912 msiexec.exe Token: SeShutdownPrivilege 2912 msiexec.exe Token: SeDebugPrivilege 2912 msiexec.exe Token: SeAuditPrivilege 2912 msiexec.exe Token: SeSystemEnvironmentPrivilege 2912 msiexec.exe Token: SeChangeNotifyPrivilege 2912 msiexec.exe Token: SeRemoteShutdownPrivilege 2912 msiexec.exe Token: SeUndockPrivilege 2912 msiexec.exe Token: SeSyncAgentPrivilege 2912 msiexec.exe Token: SeEnableDelegationPrivilege 2912 msiexec.exe Token: SeManageVolumePrivilege 2912 msiexec.exe Token: SeImpersonatePrivilege 2912 msiexec.exe Token: SeCreateGlobalPrivilege 2912 msiexec.exe Token: SeBackupPrivilege 3116 vssvc.exe Token: SeRestorePrivilege 3116 vssvc.exe Token: SeAuditPrivilege 3116 vssvc.exe Token: SeBackupPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeRestorePrivilege 2304 msiexec.exe Token: SeTakeOwnershipPrivilege 2304 msiexec.exe Token: SeBackupPrivilege 4196 srtasks.exe Token: SeRestorePrivilege 4196 srtasks.exe Token: SeSecurityPrivilege 4196 srtasks.exe Token: SeTakeOwnershipPrivilege 4196 srtasks.exe Token: SeBackupPrivilege 4196 srtasks.exe Token: SeRestorePrivilege 4196 srtasks.exe Token: SeSecurityPrivilege 4196 srtasks.exe Token: SeTakeOwnershipPrivilege 4196 srtasks.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2912 msiexec.exe 2912 msiexec.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 2304 wrote to memory of 4196 2304 msiexec.exe 103 PID 2304 wrote to memory of 4196 2304 msiexec.exe 103 PID 2304 wrote to memory of 2980 2304 msiexec.exe 105 PID 2304 wrote to memory of 2980 2304 msiexec.exe 105 PID 2304 wrote to memory of 2980 2304 msiexec.exe 105 PID 2304 wrote to memory of 4320 2304 msiexec.exe 106 PID 2304 wrote to memory of 4320 2304 msiexec.exe 106 PID 2304 wrote to memory of 4320 2304 msiexec.exe 106 PID 2732 wrote to memory of 1672 2732 rundll32.exe 108 PID 2732 wrote to memory of 1672 2732 rundll32.exe 108 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\29549b75a198ad3aee4f8b9ea328bc9a73eb0e0d07e36775438bbe7268d453f9.msi1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2912
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:22⤵
- Suspicious use of AdjustPrivilegeToken
PID:4196
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C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding CCE014B29F42BB40AD2FF39ED929B6262⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2980
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C:\Windows\Installer\MSIEA17.tmp"C:\Windows\Installer\MSIEA17.tmp" /DontWait C:/Windows/SysWOW64/rundll32.exe C:\Users\Admin\AppData\Roaming\vierm_soft_x64.dll, GetDeepDVCState2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4320
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:3116
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\vierm_soft_x64.dll, GetDeepDVCState1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732 -
C:\Windows\system32\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\vierm_soft_x64.dll, GetDeepDVCState2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:1672
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD57056bb6a7ac59c96e37ed83a39104b57
SHA11d211ec20b119e7b58345e33e7051c753cc04b01
SHA256cf699b504f625dc4395e2390dc6c2cba3543c0ab9df5bc0dcb95216251093628
SHA51293e7f1f0347f3917f215d790cee2b99297f45e5a1a5b7fa8ce110a1659bc790ea815eb82300bd5b8ddd07d1a26022fb0f4b21c808167ad887a9aabfd569075f6
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Filesize
666KB
MD5877c8b214d984656143d7576f832d935
SHA126bedae9e05afbff75ede2efc7777a376e362b6a
SHA25628f5e949ecad3606c430cea5a34d0f3e7218f239bcfa758a834dceb649e78abc
SHA512f07ac6795f4d8de38ac7f92a5ae308d2bdc30e29cebdf93b7fdee958c04bb83b1a28c4e6ac4e6a770b6d207af2a886cc93028b26e8850327f55391118f2d621a
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Filesize
436KB
MD5475d20c0ea477a35660e3f67ecf0a1df
SHA167340739f51e1134ae8f0ffc5ae9dd710e8e3a08
SHA256426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
SHA51299525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e
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Filesize
389KB
MD5b9545ed17695a32face8c3408a6a3553
SHA1f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83
SHA2561e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a
SHA512f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04
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Filesize
24.1MB
MD5a6e7c5979eb13ec45967f192faffea7c
SHA18f0f55484e3ffa479bf64aad543119eedfa43ef5
SHA256996e7548ff50c4dded4fe85b6f9a5b3308741b4ee2d9352c4c8c6c1013351b6f
SHA512f975163681d7280df7cc391f6ff8018111457c038cd73877a106d7d53fbdb4bc4555f28f470447f4dfb71cb62279e14e41e8c316b359b8945618353a015b202b
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\??\Volume{625ed6c4-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{20bddb27-cdc7-4ebb-aad8-90f565b61287}_OnDiskSnapshotProp
Filesize6KB
MD5eb58035c6c36e3027b7f0cad8ab13d88
SHA16e31ffebb272484b986f8c040de1fae8f90f1d8c
SHA256558d11ed128bbdb289678cecedcd89c4d38f30b7dd10b3710fd44d8c5305677a
SHA512c7a8e4d9200ca0d23b177ae2bb178c3ce5f1f5f54b19a4a93eda420c8fe5a6ae8fe1a8310e17746f176bcf7848a5845c5fe5eae52a8456e583cd6c77e7e30bf2