Analysis
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max time kernel
142s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
09-10-2023 22:51
Static task
static1
Behavioral task
behavioral1
Sample
doc_06.20.msi
Resource
win7-20230831-en
windows7-x64
11 signatures
150 seconds
General
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Target
doc_06.20.msi
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Size
2.2MB
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MD5
41f1f58087ac8ca8009d07032bf4319f
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SHA1
8ab6be5ac1e70f9cf1a970e4a7b2c53f29dac067
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SHA256
38c37a12323334e8362d19f6788755fc5ba35f51b9f53a07ef5481f906807864
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SHA512
0c60361265f062afeab7f03e648da982050fa58b86bdf90d972b2a936a5c316cb45c6d696a106f18797e2d9810ace6ca12a13703be4cbaf618c50f3e4d4ba359
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SSDEEP
49152:QHVNAxnHKwlpMBHOZ7wZAf8dwjeZvpA+ZSqfShYNUeCMziwF:Q12xHKwlpOH00dw0pFsbJZA
Malware Config
Extracted
Family
bumblebee
Botnet
msi11606
C2
176.111.174.67:443
rc4.plain
Signatures
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Loads dropped DLL 1 IoCs
pid Process 1740 regsvr32.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) \??\V: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\B: msiexec.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 1740 regsvr32.exe -
Drops file in Windows directory 8 IoCs
description ioc Process File opened for modification C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File created C:\Windows\Installer\SourceHash{DD475EBC-D960-4AF4-BB8A-BE91FA942756} msiexec.exe File opened for modification C:\Windows\Installer\MSI4AE.tmp msiexec.exe File created C:\Windows\Installer\e5803c6.msi msiexec.exe File created C:\Windows\Installer\e5803c4.msi msiexec.exe File opened for modification C:\Windows\Installer\e5803c4.msi msiexec.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_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters vssvc.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr vssvc.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\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_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 vssvc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4040 msiexec.exe 4040 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 1212 msiexec.exe Token: SeIncreaseQuotaPrivilege 1212 msiexec.exe Token: SeSecurityPrivilege 4040 msiexec.exe Token: SeCreateTokenPrivilege 1212 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1212 msiexec.exe Token: SeLockMemoryPrivilege 1212 msiexec.exe Token: SeIncreaseQuotaPrivilege 1212 msiexec.exe Token: SeMachineAccountPrivilege 1212 msiexec.exe Token: SeTcbPrivilege 1212 msiexec.exe Token: SeSecurityPrivilege 1212 msiexec.exe Token: SeTakeOwnershipPrivilege 1212 msiexec.exe Token: SeLoadDriverPrivilege 1212 msiexec.exe Token: SeSystemProfilePrivilege 1212 msiexec.exe Token: SeSystemtimePrivilege 1212 msiexec.exe Token: SeProfSingleProcessPrivilege 1212 msiexec.exe Token: SeIncBasePriorityPrivilege 1212 msiexec.exe Token: SeCreatePagefilePrivilege 1212 msiexec.exe Token: SeCreatePermanentPrivilege 1212 msiexec.exe Token: SeBackupPrivilege 1212 msiexec.exe Token: SeRestorePrivilege 1212 msiexec.exe Token: SeShutdownPrivilege 1212 msiexec.exe Token: SeDebugPrivilege 1212 msiexec.exe Token: SeAuditPrivilege 1212 msiexec.exe Token: SeSystemEnvironmentPrivilege 1212 msiexec.exe Token: SeChangeNotifyPrivilege 1212 msiexec.exe Token: SeRemoteShutdownPrivilege 1212 msiexec.exe Token: SeUndockPrivilege 1212 msiexec.exe Token: SeSyncAgentPrivilege 1212 msiexec.exe Token: SeEnableDelegationPrivilege 1212 msiexec.exe Token: SeManageVolumePrivilege 1212 msiexec.exe Token: SeImpersonatePrivilege 1212 msiexec.exe Token: SeCreateGlobalPrivilege 1212 msiexec.exe Token: SeBackupPrivilege 3328 vssvc.exe Token: SeRestorePrivilege 3328 vssvc.exe Token: SeAuditPrivilege 3328 vssvc.exe Token: SeBackupPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe Token: SeTakeOwnershipPrivilege 4040 msiexec.exe Token: SeRestorePrivilege 4040 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1212 msiexec.exe 1212 msiexec.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4040 wrote to memory of 2064 4040 msiexec.exe 101 PID 4040 wrote to memory of 2064 4040 msiexec.exe 101 PID 4040 wrote to memory of 1740 4040 msiexec.exe 103 PID 4040 wrote to memory of 1740 4040 msiexec.exe 103 -
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\doc_06.20.msi1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1212
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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:4040 -
C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:22⤵PID:2064
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C:\Windows\system32\regsvr32.exeregsvr32 "C:\Users\Admin\AppData\Local\Temp\Package Installation Dir\e1.dll"2⤵
- Loads dropped DLL
- Suspicious use of NtCreateThreadExHideFromDebugger
PID:1740
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:3328
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
7KB
MD53d34577482110bfebe2e23ef09ac3d7d
SHA1fd2e5494d5350df271d1d5f83c00e14389ee0ebb
SHA256215901dbe1d8d245aed9f273b13d3556ae4a56683a280653611a06e08c61f82e
SHA5125f4661e7d9435ac36f98877a01e6e548f8ddbe16885ca063ce6593778fdb362e783520b5761dd9351ad97228c3b9bf758c710c164992a86a57d3447b73d46a10
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Filesize
2.5MB
MD504889da884690bd296877a6a2453a715
SHA1235a8e9a16a4e963fb2c453cbb469ea3e1590da3
SHA256d1270e29d9a235bb456db76f5c88042eb06964145dd2b31f2ef87d5af1254e57
SHA51274875267c6b96ef6c44ac19021f96213cd115061f881b22d849ebc98aa21c92af64f46c86b908b2da53d3f6fe8d9e7bd291ce11882cff0d11bf1294a39c58cc2
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Filesize
2.5MB
MD504889da884690bd296877a6a2453a715
SHA1235a8e9a16a4e963fb2c453cbb469ea3e1590da3
SHA256d1270e29d9a235bb456db76f5c88042eb06964145dd2b31f2ef87d5af1254e57
SHA51274875267c6b96ef6c44ac19021f96213cd115061f881b22d849ebc98aa21c92af64f46c86b908b2da53d3f6fe8d9e7bd291ce11882cff0d11bf1294a39c58cc2
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Filesize
2.2MB
MD541f1f58087ac8ca8009d07032bf4319f
SHA18ab6be5ac1e70f9cf1a970e4a7b2c53f29dac067
SHA25638c37a12323334e8362d19f6788755fc5ba35f51b9f53a07ef5481f906807864
SHA5120c60361265f062afeab7f03e648da982050fa58b86bdf90d972b2a936a5c316cb45c6d696a106f18797e2d9810ace6ca12a13703be4cbaf618c50f3e4d4ba359
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Filesize
23.0MB
MD5e57190a29db44f7b25b4eb1856ccb63e
SHA1fb67988cff05817e95e1ba2da8eca592299d67ff
SHA25678df67223e1b2f41344fc6f6236885c0bf4549576b7031e7ee12fea130850c2b
SHA512c2be6f35fc87cf6984e1910accfc3493e2547e172f6ce91c6a6ac650e058156b0ad4c393e04bd554ba477511546e796a2d8ca46127c5e63aac2c16c30b5a3398
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\??\Volume{6ada6bfc-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{4ca8ecfe-767b-43cb-b65f-88996f642c18}_OnDiskSnapshotProp
Filesize5KB
MD52cd9c93d96f2a69b255a264d1acaf1f5
SHA15e94d031875ed6ed8190005a39fe7c855a09426f
SHA256b4bd53159badd58b0a6922cdd329da69049d5053410f5a7504bd107bad79a5e6
SHA5122310dca62b98d3f8f296c9205c5274cc467d8e15a1800083230c4cd5c6c0f0d6ec3c1a460c7ea24c9a7cad528ed8987d08f10025c277502d57528dc2b7f0158e