Analysis
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max time kernel
123s -
max time network
130s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
14/10/2023, 03:58
Static task
static1
Behavioral task
behavioral1
Sample
e4780a285befbc2419d74e2c3bcecffd0e128a8e1f8db367de072b37d59e942b_JC.msi
Resource
win7-20230831-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
e4780a285befbc2419d74e2c3bcecffd0e128a8e1f8db367de072b37d59e942b_JC.msi
Resource
win10v2004-20230915-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
e4780a285befbc2419d74e2c3bcecffd0e128a8e1f8db367de072b37d59e942b_JC.msi
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Size
527KB
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MD5
f21e7ee2ee6ab192ea920d1dbacbfc3e
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SHA1
7df2489e660c9f0f060b2897d732deb51a5dea37
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SHA256
e4780a285befbc2419d74e2c3bcecffd0e128a8e1f8db367de072b37d59e942b
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SHA512
10bdbb79d00dedb5945c6f2398d2bb6a438da80bb7273405dab3f3c19e2ef1493e66f9e6d0110ad31bec40c4c70c6ab80112e7101db4e6bd0e09cf40a86f86b6
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SSDEEP
12288:kfkdlY5AVTqp4nb5roPzfGXSjptsrYI21wlD:kfkdlY5Awp4b5fXSjp2b
Score
7/10
Malware Config
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Application Signer.cmd msiexec.exe -
Loads dropped DLL 2 IoCs
pid Process 1412 MsiExec.exe 1412 MsiExec.exe -
Blocklisted process makes network request 2 IoCs
flow pid Process 4 1412 MsiExec.exe 5 1412 MsiExec.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) \??\Y: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\X: msiexec.exe -
Drops file in Windows directory 11 IoCs
description ioc Process File opened for modification C:\Windows\INF\setupapi.ev3 DrvInst.exe File opened for modification C:\Windows\INF\setupapi.ev1 DrvInst.exe File created C:\Windows\Installer\f7773f8.msi msiexec.exe File opened for modification C:\Windows\Installer\f7773f8.msi msiexec.exe File opened for modification C:\Windows\Installer\MSI7A30.tmp msiexec.exe File opened for modification C:\Windows\Installer\f7773fb.ipi msiexec.exe File opened for modification C:\Windows\INF\setupapi.dev.log DrvInst.exe File opened for modification C:\Windows\Installer\MSI74B3.tmp msiexec.exe File created C:\Windows\Installer\f7773fb.ipi msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\MSI7CDF.tmp msiexec.exe -
Modifies data under HKEY_USERS 43 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\trust\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\Policies\Microsoft\SystemCertificates\trust\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 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\Root\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\Policies\Microsoft\SystemCertificates\CA\CRLs 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\trust\Certificates DrvInst.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2540 msiexec.exe 2540 msiexec.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1540 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
description pid Process Token: SeShutdownPrivilege 1540 msiexec.exe Token: SeIncreaseQuotaPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeTakeOwnershipPrivilege 2540 msiexec.exe Token: SeSecurityPrivilege 2540 msiexec.exe Token: SeCreateTokenPrivilege 1540 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1540 msiexec.exe Token: SeLockMemoryPrivilege 1540 msiexec.exe Token: SeIncreaseQuotaPrivilege 1540 msiexec.exe Token: SeMachineAccountPrivilege 1540 msiexec.exe Token: SeTcbPrivilege 1540 msiexec.exe Token: SeSecurityPrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeLoadDriverPrivilege 1540 msiexec.exe Token: SeSystemProfilePrivilege 1540 msiexec.exe Token: SeSystemtimePrivilege 1540 msiexec.exe Token: SeProfSingleProcessPrivilege 1540 msiexec.exe Token: SeIncBasePriorityPrivilege 1540 msiexec.exe Token: SeCreatePagefilePrivilege 1540 msiexec.exe Token: SeCreatePermanentPrivilege 1540 msiexec.exe Token: SeBackupPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeShutdownPrivilege 1540 msiexec.exe Token: SeDebugPrivilege 1540 msiexec.exe Token: SeAuditPrivilege 1540 msiexec.exe Token: SeSystemEnvironmentPrivilege 1540 msiexec.exe Token: SeChangeNotifyPrivilege 1540 msiexec.exe Token: SeRemoteShutdownPrivilege 1540 msiexec.exe Token: SeUndockPrivilege 1540 msiexec.exe Token: SeSyncAgentPrivilege 1540 msiexec.exe Token: SeEnableDelegationPrivilege 1540 msiexec.exe Token: SeManageVolumePrivilege 1540 msiexec.exe Token: SeImpersonatePrivilege 1540 msiexec.exe Token: SeCreateGlobalPrivilege 1540 msiexec.exe Token: SeBackupPrivilege 2776 vssvc.exe Token: SeRestorePrivilege 2776 vssvc.exe Token: SeAuditPrivilege 2776 vssvc.exe Token: SeBackupPrivilege 2540 msiexec.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeRestorePrivilege 2380 DrvInst.exe Token: SeRestorePrivilege 2380 DrvInst.exe Token: SeRestorePrivilege 2380 DrvInst.exe Token: SeRestorePrivilege 2380 DrvInst.exe Token: SeRestorePrivilege 2380 DrvInst.exe Token: SeRestorePrivilege 2380 DrvInst.exe Token: SeRestorePrivilege 2380 DrvInst.exe Token: SeLoadDriverPrivilege 2380 DrvInst.exe Token: SeLoadDriverPrivilege 2380 DrvInst.exe Token: SeLoadDriverPrivilege 2380 DrvInst.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeTakeOwnershipPrivilege 2540 msiexec.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeTakeOwnershipPrivilege 2540 msiexec.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeTakeOwnershipPrivilege 2540 msiexec.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeTakeOwnershipPrivilege 2540 msiexec.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeTakeOwnershipPrivilege 2540 msiexec.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeTakeOwnershipPrivilege 2540 msiexec.exe Token: SeRestorePrivilege 2540 msiexec.exe Token: SeTakeOwnershipPrivilege 2540 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1540 msiexec.exe 1540 msiexec.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2540 wrote to memory of 1412 2540 msiexec.exe 34 PID 2540 wrote to memory of 1412 2540 msiexec.exe 34 PID 2540 wrote to memory of 1412 2540 msiexec.exe 34 PID 2540 wrote to memory of 1412 2540 msiexec.exe 34 PID 2540 wrote to memory of 1412 2540 msiexec.exe 34 PID 2540 wrote to memory of 1412 2540 msiexec.exe 34 PID 2540 wrote to memory of 1412 2540 msiexec.exe 34 -
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\e4780a285befbc2419d74e2c3bcecffd0e128a8e1f8db367de072b37d59e942b_JC.msi1⤵
- Enumerates connected drives
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1540
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Drops startup file
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 2ED057DC74E98C22F3762932C80E4AB22⤵
- Loads dropped DLL
- Blocklisted process makes network request
PID:1412
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2776
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C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005B4" "0000000000000588"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2380
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD543d4fbf95fdbf957ecc58fa11f307134
SHA1c793573537ac8c42f4a1d6bd6726eb50e8ee1fe9
SHA256c727d0e8f0471f37cc3256b8af24569cc2484d65a8fc31868fd14c034560cb59
SHA512c113d9cc913801f69d33ea5037ce699fb431624dccdd1d67dba21b8afc838e03384fdd5e2342d96eba4c07eeada7d70c2fa016491237cf86a53007b4b6650418
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Filesize
91KB
MD55c5bef05b6f3806106f8f3ce13401cc1
SHA16005fbe17f6e917ac45317552409d7a60976db14
SHA256f2f3ae8ca06f5cf320ca1d234a623bf55cf2b84c1d6dea3d85d5392e29aaf437
SHA51297933227b6002127385ace025f85a26358e47ee79c883f03180d474c15dbaf28a88492c8e53aefc0d305872edd27db0b4468da13e6f0337988f58d2ee35fd797
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Filesize
91KB
MD55c5bef05b6f3806106f8f3ce13401cc1
SHA16005fbe17f6e917ac45317552409d7a60976db14
SHA256f2f3ae8ca06f5cf320ca1d234a623bf55cf2b84c1d6dea3d85d5392e29aaf437
SHA51297933227b6002127385ace025f85a26358e47ee79c883f03180d474c15dbaf28a88492c8e53aefc0d305872edd27db0b4468da13e6f0337988f58d2ee35fd797
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Filesize
91KB
MD55c5bef05b6f3806106f8f3ce13401cc1
SHA16005fbe17f6e917ac45317552409d7a60976db14
SHA256f2f3ae8ca06f5cf320ca1d234a623bf55cf2b84c1d6dea3d85d5392e29aaf437
SHA51297933227b6002127385ace025f85a26358e47ee79c883f03180d474c15dbaf28a88492c8e53aefc0d305872edd27db0b4468da13e6f0337988f58d2ee35fd797
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Filesize
91KB
MD55c5bef05b6f3806106f8f3ce13401cc1
SHA16005fbe17f6e917ac45317552409d7a60976db14
SHA256f2f3ae8ca06f5cf320ca1d234a623bf55cf2b84c1d6dea3d85d5392e29aaf437
SHA51297933227b6002127385ace025f85a26358e47ee79c883f03180d474c15dbaf28a88492c8e53aefc0d305872edd27db0b4468da13e6f0337988f58d2ee35fd797