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Analysis
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max time kernel
138s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
24/01/2024, 19:13
Static task
static1
Behavioral task
behavioral1
Sample
callerboost.msi
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
callerboost.msi
Resource
win10v2004-20231215-en
General
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Target
callerboost.msi
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Size
4.3MB
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MD5
e5f7079ca80c83e485f3bce73ea6ed9f
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SHA1
0d7aaa0d35d08a4a9604e2eb78dec6611149c7ea
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SHA256
79831c653ebd81093024ba5c4fef1bd33d3279b2a679e53f7872cedbae994317
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SHA512
d895c3d379c1bdeb83a2cdd739039ebe716c1f5b78f69da59eb0432b7bd9000fc9529793068bbf9d3fac75278dcadaf638acd74e716f4311ade63cfdeefb6ff9
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SSDEEP
49152:mpUP19qhCxzT+WKjSXnbbAKVTu6YmvuKAFFheHEzM60CPxAimD7Z6lWtB18F:mpWCQbbG909AU0/uQI
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 4360 vlc.exe 4020 Autoit3.exe -
Loads dropped DLL 3 IoCs
pid Process 4256 MsiExec.exe 4360 vlc.exe 4256 MsiExec.exe -
Modifies file permissions 1 TTPs 2 IoCs
pid Process 3172 ICACLS.EXE 2484 ICACLS.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) \??\B: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\G: 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) \??\J: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\B: msiexec.exe -
Drops file in Windows directory 11 IoCs
description ioc Process File opened for modification C:\Windows\Installer\e592b7b.msi msiexec.exe File created C:\Windows\Installer\SourceHash{C010F6F4-F24F-4328-9051-7FB4FAFC88CB} msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File opened for modification C:\Windows\LOGS\DPX\setupact.log EXPAND.EXE File opened for modification C:\Windows\Installer\MSI44B2.tmp msiexec.exe File created C:\Windows\Installer\e592b7b.msi msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\MSI2E1B.tmp msiexec.exe File opened for modification C:\Windows\LOGS\DPX\setuperr.log EXPAND.EXE File opened for modification C:\Windows\Installer\MSI4482.tmp msiexec.exe File opened for modification C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log 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 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 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 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Autoit3.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Autoit3.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1956 msiexec.exe 1956 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 53 IoCs
description pid Process Token: SeShutdownPrivilege 1856 msiexec.exe Token: SeIncreaseQuotaPrivilege 1856 msiexec.exe Token: SeSecurityPrivilege 1956 msiexec.exe Token: SeCreateTokenPrivilege 1856 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1856 msiexec.exe Token: SeLockMemoryPrivilege 1856 msiexec.exe Token: SeIncreaseQuotaPrivilege 1856 msiexec.exe Token: SeMachineAccountPrivilege 1856 msiexec.exe Token: SeTcbPrivilege 1856 msiexec.exe Token: SeSecurityPrivilege 1856 msiexec.exe Token: SeTakeOwnershipPrivilege 1856 msiexec.exe Token: SeLoadDriverPrivilege 1856 msiexec.exe Token: SeSystemProfilePrivilege 1856 msiexec.exe Token: SeSystemtimePrivilege 1856 msiexec.exe Token: SeProfSingleProcessPrivilege 1856 msiexec.exe Token: SeIncBasePriorityPrivilege 1856 msiexec.exe Token: SeCreatePagefilePrivilege 1856 msiexec.exe Token: SeCreatePermanentPrivilege 1856 msiexec.exe Token: SeBackupPrivilege 1856 msiexec.exe Token: SeRestorePrivilege 1856 msiexec.exe Token: SeShutdownPrivilege 1856 msiexec.exe Token: SeDebugPrivilege 1856 msiexec.exe Token: SeAuditPrivilege 1856 msiexec.exe Token: SeSystemEnvironmentPrivilege 1856 msiexec.exe Token: SeChangeNotifyPrivilege 1856 msiexec.exe Token: SeRemoteShutdownPrivilege 1856 msiexec.exe Token: SeUndockPrivilege 1856 msiexec.exe Token: SeSyncAgentPrivilege 1856 msiexec.exe Token: SeEnableDelegationPrivilege 1856 msiexec.exe Token: SeManageVolumePrivilege 1856 msiexec.exe Token: SeImpersonatePrivilege 1856 msiexec.exe Token: SeCreateGlobalPrivilege 1856 msiexec.exe Token: SeBackupPrivilege 2844 vssvc.exe Token: SeRestorePrivilege 2844 vssvc.exe Token: SeAuditPrivilege 2844 vssvc.exe Token: SeBackupPrivilege 1956 msiexec.exe Token: SeRestorePrivilege 1956 msiexec.exe Token: SeRestorePrivilege 1956 msiexec.exe Token: SeTakeOwnershipPrivilege 1956 msiexec.exe Token: SeRestorePrivilege 1956 msiexec.exe Token: SeTakeOwnershipPrivilege 1956 msiexec.exe Token: SeRestorePrivilege 1956 msiexec.exe Token: SeTakeOwnershipPrivilege 1956 msiexec.exe Token: SeRestorePrivilege 1956 msiexec.exe Token: SeTakeOwnershipPrivilege 1956 msiexec.exe Token: SeBackupPrivilege 3272 srtasks.exe Token: SeRestorePrivilege 3272 srtasks.exe Token: SeSecurityPrivilege 3272 srtasks.exe Token: SeTakeOwnershipPrivilege 3272 srtasks.exe Token: SeBackupPrivilege 3272 srtasks.exe Token: SeRestorePrivilege 3272 srtasks.exe Token: SeSecurityPrivilege 3272 srtasks.exe Token: SeTakeOwnershipPrivilege 3272 srtasks.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1856 msiexec.exe 1856 msiexec.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 1956 wrote to memory of 3272 1956 msiexec.exe 101 PID 1956 wrote to memory of 3272 1956 msiexec.exe 101 PID 1956 wrote to memory of 4256 1956 msiexec.exe 103 PID 1956 wrote to memory of 4256 1956 msiexec.exe 103 PID 1956 wrote to memory of 4256 1956 msiexec.exe 103 PID 4256 wrote to memory of 2484 4256 MsiExec.exe 104 PID 4256 wrote to memory of 2484 4256 MsiExec.exe 104 PID 4256 wrote to memory of 2484 4256 MsiExec.exe 104 PID 4256 wrote to memory of 3868 4256 MsiExec.exe 106 PID 4256 wrote to memory of 3868 4256 MsiExec.exe 106 PID 4256 wrote to memory of 3868 4256 MsiExec.exe 106 PID 4256 wrote to memory of 4360 4256 MsiExec.exe 108 PID 4256 wrote to memory of 4360 4256 MsiExec.exe 108 PID 4360 wrote to memory of 4020 4360 vlc.exe 109 PID 4360 wrote to memory of 4020 4360 vlc.exe 109 PID 4360 wrote to memory of 4020 4360 vlc.exe 109 PID 4256 wrote to memory of 3172 4256 MsiExec.exe 110 PID 4256 wrote to memory of 3172 4256 MsiExec.exe 110 PID 4256 wrote to memory of 3172 4256 MsiExec.exe 110 -
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\callerboost.msi1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1856
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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:1956 -
C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:22⤵
- Suspicious use of AdjustPrivilegeToken
PID:3272
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C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 63A5F6C12C35BA599124F10EAE4180EA2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4256 -
C:\Windows\SysWOW64\ICACLS.EXE"C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\." /SETINTEGRITYLEVEL (CI)(OI)HIGH3⤵
- Modifies file permissions
PID:2484
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C:\Windows\SysWOW64\EXPAND.EXE"C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files3⤵
- Drops file in Windows directory
PID:3868
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C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\files\vlc.exe"C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\files\vlc.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4360 -
\??\c:\temp\Autoit3.exe"c:\temp\Autoit3.exe" c:\temp\script.au34⤵
- Executes dropped EXE
- Checks processor information in registry
PID:4020
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C:\Windows\SysWOW64\ICACLS.EXE"C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\." /SETINTEGRITYLEVEL (CI)(OI)LOW3⤵
- Modifies file permissions
PID:3172
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:2844
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4.0MB
MD59c0b5c15ba3b3f18f1a62cf3b1682f2d
SHA125bfe678611fc730b9398f4ef28cf7a7df82d6ff
SHA2565c9547cbdf4b3a806191c8fc57b759266cce4338ee91617f0ec01c123dedeb21
SHA512183ead6d807f49fc68087a25d0e2f4fb842dd4584ebe54c21fc4cf944020c4cfcfd16fd9d77159806efb69483e4a2754baa6352f54f6ec52cb33bd1254a05768
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Filesize
1.5MB
MD5475ad819eabbf4df440af6fbc3b432d1
SHA102d1b6314ba40bf2743e52140d61dd387029b3be
SHA256f099a415e6a07121787b07889689127d63e88b459a9977ee8616ff6d26b8958f
SHA51225cdf9b6ae54b6f11b9d608e0b40f8d260deaea438559d3a320961047812911b9cdb5dae47d70f00604d53b5a00a66dcc23de2b47006ad8ef0b6c32376214ee4
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Filesize
1.6MB
MD51ccb72d537bc0a956501f3a0fc84c8e5
SHA154cf4083fa1ed467811281fd7ca86428ca17cd18
SHA2564e003f6e8dab88c9a1a95114c4f877b09552b45939bd069df7690ae5daba080f
SHA512b4172df8a39f4ccc297187858ee7fd03af0921e124f73c7c11b80acaf1ce5579c385076cd405fd0ce9c5a32cc1e50f3a8cbdc03f0196301158bd3cfcf58df56c
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Filesize
966KB
MD5035860e139ba6db1b38d5346cb6ff5b6
SHA1d515303cbca3a8ae7a0463fecd418d81b314e650
SHA25616197a321fc7b0a2a311e689621fe4a7cd50fdcb2d163973a31e4fd6352232d7
SHA51214dab9108d85af72001631130923b94483dd1440f24a8eedad41756db3030c5e11e80ec894922c389e09c86e8b721bcbd8594bd3646f484560f89963a7e18cc7
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Filesize
1KB
MD5f0a5d8e4bf1e1a6e6e0c659d2e971b59
SHA12385331d0d2e9721f15312a4fff45f7625daaff2
SHA2560473d47759cdf2afe5ca6614e145d28fbdbb764e1b4c503883f0926e5ff26e15
SHA512abf6588a0a44c9c96615c4c2ee4e39e25c6acf5a3f7144b9f17723c0a074957e54f981972da52a6497072a0343a3fd1994d43e2e70efdff55fccef3320e7a68a
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Filesize
1KB
MD554867201259ed69699c5bc56d2558366
SHA14b67528abbc1fcd137733f94367f98a533ce8ff9
SHA256635f65e7f423f3d11d618346f2f7f25b7ed92af17beaa2cb0f54a5a7b5dc4990
SHA5121d3e71cd27a1ce782ef93cfd7b8ef26f09b75df01f5e067e46d5becb41299609516e0b7ef470f19fe8c186c322b3bf23101eb99424437f56719448fda7ac10e4
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Filesize
208KB
MD5d82b3fb861129c5d71f0cd2874f97216
SHA1f3fe341d79224126e950d2691d574d147102b18d
SHA256107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c
SHA512244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b
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Filesize
23.0MB
MD5e89a6226dce381ffb3817d2a84a59c66
SHA1bf0b5372597b1f5436ad7877583ebe45df835609
SHA256176471cf0dcbb9e8ed4e4b6bd475b7a6f3af04b255eb3fa9d1e6aaff6b83e750
SHA512fdbea9368f86dfd99777cc5ec6baec66466f772063ccd12716f086a8ddc78c29bdb31502598241e5154b7ac1875285427ec482548979711162aadd981b419609
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\??\Volume{57af6234-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{b6ea7d8c-c370-47f5-9c94-857668a34902}_OnDiskSnapshotProp
Filesize6KB
MD52d61b4ff12148ec11e8f3f81ba86ed61
SHA19e01599a9b0214a09366bfd91ef7ac677ef236d1
SHA256474c07f6d3bdf980e9c7503d33cd500934f5282fc15c96954b17e319e7327ca5
SHA512666916c609d6cbdec3d13d14294f9f7f539a432c8448ccb79b9c0c7aecc3f329cc6c536727e553e9805fe563d95595be80f08489396d3e44bcd1931bbcf83f3b
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Filesize
872KB
MD5c56b5f0201a3b3de53e561fe76912bfd
SHA12a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA256237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
SHA512195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
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Filesize
470KB
MD5e810ae3de9def29229459bdac592376e
SHA1e0a177c4c668db3ff80f6930924d63582f14084a
SHA256a86cd95594771888b1ca6f4bf6aeafff8820aa6680665305520e0d2f9c0ac4fa
SHA51233e7aec0a7a8690e4a171a73370a3c15663618b318b2264d0df00d2a5d71cab2b552957f0cb7f6f87e4d31ebedd16748e7ccd8379efab02f77bec0b120d244b7
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Filesize
76B
MD536a2bafe0e0b48055b7d081a5c65ae04
SHA1264e2a6296ce42500c1b3cd102f10b08e2c1ff05
SHA256805c7daeb376520828028a8c534984f8a268942253aa332dfe7066a0da669f46
SHA512a50e1bf4416e7bcc847bab7886a61316d03922cb87cd9f76075d080255c2341eefde4a75fb88b2777f9e5fa3d0c96844dc12bf5def31c88ce0948431a6b20c54