Analysis
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max time kernel
121s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
14-10-2023 02:43
Static task
static1
Behavioral task
behavioral1
Sample
439fba17d37f5fb43487decfd1743712861fc0067d98ff4171d41ca5a267648a.msi
Resource
win7-20230831-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
439fba17d37f5fb43487decfd1743712861fc0067d98ff4171d41ca5a267648a.msi
Resource
win10v2004-20230915-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
439fba17d37f5fb43487decfd1743712861fc0067d98ff4171d41ca5a267648a.msi
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Size
527KB
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MD5
0fde8516a3f519ff250a0571ea0c1b68
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SHA1
12410d6f88525bc5c11ce4e009053c04e42bf452
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SHA256
439fba17d37f5fb43487decfd1743712861fc0067d98ff4171d41ca5a267648a
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SHA512
72bf73fe97c7f87a386003665eafd149276ebbba925e7b1b5f997942f942378e6566a60c2ad2f3e2cdea1f4a429a220b0502b274d57dff727a50b723bed7a9a4
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SSDEEP
12288:T84mlY5AVTqp4nb5rQPzfGXSjptsrYI21wlD:T84mlY5Awp4b5HXSjp2b
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 2776 MsiExec.exe 2776 MsiExec.exe -
Blocklisted process makes network request 2 IoCs
flow pid Process 3 2776 MsiExec.exe 7 2776 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) \??\K: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\P: 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 opened for modification C:\Windows\INF\setupapi.dev.log DrvInst.exe File created C:\Windows\Installer\f76e7d0.msi msiexec.exe File opened for modification C:\Windows\Installer\MSIEA02.tmp msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\MSIECE0.tmp msiexec.exe File opened for modification C:\Windows\Installer\f76e7d0.msi msiexec.exe File opened for modification C:\Windows\Installer\MSIE8BA.tmp msiexec.exe File created C:\Windows\Installer\f76e7d3.ipi msiexec.exe File opened for modification C:\Windows\Installer\f76e7d3.ipi msiexec.exe -
Modifies data under HKEY_USERS 43 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs 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\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs 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\Policies\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs 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\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates 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\Policies\Microsoft\SystemCertificates\trust\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\Policies\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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 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\CRLs DrvInst.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1736 msiexec.exe 1736 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
description pid Process Token: SeShutdownPrivilege 2212 msiexec.exe Token: SeIncreaseQuotaPrivilege 2212 msiexec.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeTakeOwnershipPrivilege 1736 msiexec.exe Token: SeSecurityPrivilege 1736 msiexec.exe Token: SeCreateTokenPrivilege 2212 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 2212 msiexec.exe Token: SeLockMemoryPrivilege 2212 msiexec.exe Token: SeIncreaseQuotaPrivilege 2212 msiexec.exe Token: SeMachineAccountPrivilege 2212 msiexec.exe Token: SeTcbPrivilege 2212 msiexec.exe Token: SeSecurityPrivilege 2212 msiexec.exe Token: SeTakeOwnershipPrivilege 2212 msiexec.exe Token: SeLoadDriverPrivilege 2212 msiexec.exe Token: SeSystemProfilePrivilege 2212 msiexec.exe Token: SeSystemtimePrivilege 2212 msiexec.exe Token: SeProfSingleProcessPrivilege 2212 msiexec.exe Token: SeIncBasePriorityPrivilege 2212 msiexec.exe Token: SeCreatePagefilePrivilege 2212 msiexec.exe Token: SeCreatePermanentPrivilege 2212 msiexec.exe Token: SeBackupPrivilege 2212 msiexec.exe Token: SeRestorePrivilege 2212 msiexec.exe Token: SeShutdownPrivilege 2212 msiexec.exe Token: SeDebugPrivilege 2212 msiexec.exe Token: SeAuditPrivilege 2212 msiexec.exe Token: SeSystemEnvironmentPrivilege 2212 msiexec.exe Token: SeChangeNotifyPrivilege 2212 msiexec.exe Token: SeRemoteShutdownPrivilege 2212 msiexec.exe Token: SeUndockPrivilege 2212 msiexec.exe Token: SeSyncAgentPrivilege 2212 msiexec.exe Token: SeEnableDelegationPrivilege 2212 msiexec.exe Token: SeManageVolumePrivilege 2212 msiexec.exe Token: SeImpersonatePrivilege 2212 msiexec.exe Token: SeCreateGlobalPrivilege 2212 msiexec.exe Token: SeBackupPrivilege 2376 vssvc.exe Token: SeRestorePrivilege 2376 vssvc.exe Token: SeAuditPrivilege 2376 vssvc.exe Token: SeBackupPrivilege 1736 msiexec.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeRestorePrivilege 2656 DrvInst.exe Token: SeRestorePrivilege 2656 DrvInst.exe Token: SeRestorePrivilege 2656 DrvInst.exe Token: SeRestorePrivilege 2656 DrvInst.exe Token: SeRestorePrivilege 2656 DrvInst.exe Token: SeRestorePrivilege 2656 DrvInst.exe Token: SeRestorePrivilege 2656 DrvInst.exe Token: SeLoadDriverPrivilege 2656 DrvInst.exe Token: SeLoadDriverPrivilege 2656 DrvInst.exe Token: SeLoadDriverPrivilege 2656 DrvInst.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeTakeOwnershipPrivilege 1736 msiexec.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeTakeOwnershipPrivilege 1736 msiexec.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeTakeOwnershipPrivilege 1736 msiexec.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeTakeOwnershipPrivilege 1736 msiexec.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeTakeOwnershipPrivilege 1736 msiexec.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeTakeOwnershipPrivilege 1736 msiexec.exe Token: SeRestorePrivilege 1736 msiexec.exe Token: SeTakeOwnershipPrivilege 1736 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2212 msiexec.exe 2212 msiexec.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1736 wrote to memory of 2776 1736 msiexec.exe 34 PID 1736 wrote to memory of 2776 1736 msiexec.exe 34 PID 1736 wrote to memory of 2776 1736 msiexec.exe 34 PID 1736 wrote to memory of 2776 1736 msiexec.exe 34 PID 1736 wrote to memory of 2776 1736 msiexec.exe 34 PID 1736 wrote to memory of 2776 1736 msiexec.exe 34 PID 1736 wrote to memory of 2776 1736 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\439fba17d37f5fb43487decfd1743712861fc0067d98ff4171d41ca5a267648a.msi1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2212
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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:1736 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 85C03371859654A73200C2C429DC03242⤵
- Loads dropped DLL
- Blocklisted process makes network request
PID:2776
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2376
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C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003B4" "00000000000005C8"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2656
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5ef7d4d3fab07b0e8e25aaca9e59628b7
SHA1aca084e40d178afaf37cddec7493e35872498c8a
SHA2569dc28cbf4c80cfad281d606c28bb833bde3253ce617038294316fa6cc8895aa3
SHA5126361da307597f899d7db16b78b01f291d685040c78838ff786b7c83716ff2eafb6a278d583006e862b3eff6719f5b64b8b7d45f4e260ea568354d7e408dd2109
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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