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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
20/06/2023, 19:13
Static task
static1
Behavioral task
behavioral1
Sample
doc_06.20.msi
Resource
win7-20230220-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 1760 regsvr32.exe -
Enumerates connected drives 3 TTPs 48 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\U: 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) \??\N: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\F: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\F: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\L: msiexec.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 1760 regsvr32.exe -
Drops file in Windows directory 10 IoCs
description ioc Process File opened for modification C:\Windows\Installer\6cf134.ipi msiexec.exe File opened for modification C:\Windows\INF\setupapi.ev3 DrvInst.exe File opened for modification C:\Windows\INF\setupapi.dev.log DrvInst.exe File created C:\Windows\Installer\6cf133.msi msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File created C:\Windows\Installer\6cf136.msi msiexec.exe File opened for modification C:\Windows\INF\setupapi.ev1 DrvInst.exe File opened for modification C:\Windows\Installer\6cf133.msi msiexec.exe File created C:\Windows\Installer\6cf134.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSIF345.tmp msiexec.exe -
Modifies data under HKEY_USERS 43 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs DrvInst.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1008 msiexec.exe 1008 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 1336 msiexec.exe Token: SeIncreaseQuotaPrivilege 1336 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeTakeOwnershipPrivilege 1008 msiexec.exe Token: SeSecurityPrivilege 1008 msiexec.exe Token: SeCreateTokenPrivilege 1336 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1336 msiexec.exe Token: SeLockMemoryPrivilege 1336 msiexec.exe Token: SeIncreaseQuotaPrivilege 1336 msiexec.exe Token: SeMachineAccountPrivilege 1336 msiexec.exe Token: SeTcbPrivilege 1336 msiexec.exe Token: SeSecurityPrivilege 1336 msiexec.exe Token: SeTakeOwnershipPrivilege 1336 msiexec.exe Token: SeLoadDriverPrivilege 1336 msiexec.exe Token: SeSystemProfilePrivilege 1336 msiexec.exe Token: SeSystemtimePrivilege 1336 msiexec.exe Token: SeProfSingleProcessPrivilege 1336 msiexec.exe Token: SeIncBasePriorityPrivilege 1336 msiexec.exe Token: SeCreatePagefilePrivilege 1336 msiexec.exe Token: SeCreatePermanentPrivilege 1336 msiexec.exe Token: SeBackupPrivilege 1336 msiexec.exe Token: SeRestorePrivilege 1336 msiexec.exe Token: SeShutdownPrivilege 1336 msiexec.exe Token: SeDebugPrivilege 1336 msiexec.exe Token: SeAuditPrivilege 1336 msiexec.exe Token: SeSystemEnvironmentPrivilege 1336 msiexec.exe Token: SeChangeNotifyPrivilege 1336 msiexec.exe Token: SeRemoteShutdownPrivilege 1336 msiexec.exe Token: SeUndockPrivilege 1336 msiexec.exe Token: SeSyncAgentPrivilege 1336 msiexec.exe Token: SeEnableDelegationPrivilege 1336 msiexec.exe Token: SeManageVolumePrivilege 1336 msiexec.exe Token: SeImpersonatePrivilege 1336 msiexec.exe Token: SeCreateGlobalPrivilege 1336 msiexec.exe Token: SeBackupPrivilege 1884 vssvc.exe Token: SeRestorePrivilege 1884 vssvc.exe Token: SeAuditPrivilege 1884 vssvc.exe Token: SeBackupPrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1972 DrvInst.exe Token: SeRestorePrivilege 1972 DrvInst.exe Token: SeRestorePrivilege 1972 DrvInst.exe Token: SeRestorePrivilege 1972 DrvInst.exe Token: SeRestorePrivilege 1972 DrvInst.exe Token: SeRestorePrivilege 1972 DrvInst.exe Token: SeRestorePrivilege 1972 DrvInst.exe Token: SeLoadDriverPrivilege 1972 DrvInst.exe Token: SeLoadDriverPrivilege 1972 DrvInst.exe Token: SeLoadDriverPrivilege 1972 DrvInst.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeTakeOwnershipPrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeTakeOwnershipPrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeTakeOwnershipPrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeTakeOwnershipPrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeTakeOwnershipPrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeTakeOwnershipPrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe Token: SeTakeOwnershipPrivilege 1008 msiexec.exe Token: SeRestorePrivilege 1008 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1336 msiexec.exe 1336 msiexec.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1008 wrote to memory of 1760 1008 msiexec.exe 31 PID 1008 wrote to memory of 1760 1008 msiexec.exe 31 PID 1008 wrote to memory of 1760 1008 msiexec.exe 31 PID 1008 wrote to memory of 1760 1008 msiexec.exe 31 PID 1008 wrote to memory of 1760 1008 msiexec.exe 31 -
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:1336
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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:1008 -
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:1760
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1884
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C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000060" "000000000000005C"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:1972
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
7KB
MD5455c800ced3f3a145ed7ed7cef7d6916
SHA12bc1b2d774fb6906382cee3be7c7332f7a1bc17e
SHA2564deffe4bb0f7c84965d40218e9624cf60c0871dfa7d7333c07a6f27ad5f50812
SHA5128c57e4d571e41ddb4a2e8ae884845e0bfe16c6ca484b5a922389033876aef204a39acbba595c34ef62094f6fac96de0b11b08462d7f7df6e7f1cb87d9ab6d4c3
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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
2.5MB
MD504889da884690bd296877a6a2453a715
SHA1235a8e9a16a4e963fb2c453cbb469ea3e1590da3
SHA256d1270e29d9a235bb456db76f5c88042eb06964145dd2b31f2ef87d5af1254e57
SHA51274875267c6b96ef6c44ac19021f96213cd115061f881b22d849ebc98aa21c92af64f46c86b908b2da53d3f6fe8d9e7bd291ce11882cff0d11bf1294a39c58cc2