Analysis
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max time kernel
121s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
20/08/2023, 21:28
Static task
static1
Behavioral task
behavioral1
Sample
Zero.msi
Resource
win7-20230712-en
windows7-x64
General
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Target
Zero.msi
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Size
16.5MB
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MD5
700bb4eaa0787db2a54892ce54fa3705
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SHA1
6e3d408cd3af0bfdbc732351b2fd6048d9767905
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SHA256
9b3fbbe29771ee2f1b4d45cbf372c9d1dbec9606315aca062c9e909e882b4b64
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SHA512
61772af3c0813740f536f43d3c8b2a135154d3d8b4fcc4a09e003f96686ef951bc5f95b3cc01a6c5d768f2080aaa2843b9314b28c09d82823a812937d3c0f49e
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SSDEEP
196608:arjfrI20pE/DGRFzPr7QjHQvw8SZH+ih6FkHNEsBFykMhW7qol+yUs4nu:arj8FESTjfkwvwDH+b7sxuW7qoRUs4u
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 3 1336 msiexec.exe 4 1772 msiexec.exe -
Loads dropped DLL 5 IoCs
pid Process 2564 MsiExec.exe 2564 MsiExec.exe 2564 MsiExec.exe 2564 MsiExec.exe 2564 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) \??\E: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\S: 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) \??\P: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\T: msiexec.exe -
Drops file in Windows directory 10 IoCs
description ioc Process File opened for modification C:\Windows\INF\setupapi.ev1 DrvInst.exe File opened for modification C:\Windows\Installer\f76b77d.msi msiexec.exe File opened for modification C:\Windows\Installer\MSIBB8E.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIC234.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIC3AC.tmp 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\f76b77d.msi msiexec.exe File opened for modification C:\Windows\Installer\MSIC2C1.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIC4F5.tmp msiexec.exe -
Modifies data under HKEY_USERS 43 IoCs
description ioc Process 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\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\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\CTLs 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\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\CA 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\CRLs 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\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\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\Microsoft\SystemCertificates\My DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\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 DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs 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\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\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\SystemCertificates\Root\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe -
Suspicious use of AdjustPrivilegeToken 61 IoCs
description pid Process Token: SeShutdownPrivilege 1336 msiexec.exe Token: SeIncreaseQuotaPrivilege 1336 msiexec.exe Token: SeRestorePrivilege 1772 msiexec.exe Token: SeTakeOwnershipPrivilege 1772 msiexec.exe Token: SeSecurityPrivilege 1772 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 2784 vssvc.exe Token: SeRestorePrivilege 2784 vssvc.exe Token: SeAuditPrivilege 2784 vssvc.exe Token: SeBackupPrivilege 1772 msiexec.exe Token: SeRestorePrivilege 1772 msiexec.exe Token: SeRestorePrivilege 2628 DrvInst.exe Token: SeRestorePrivilege 2628 DrvInst.exe Token: SeRestorePrivilege 2628 DrvInst.exe Token: SeRestorePrivilege 2628 DrvInst.exe Token: SeRestorePrivilege 2628 DrvInst.exe Token: SeRestorePrivilege 2628 DrvInst.exe Token: SeRestorePrivilege 2628 DrvInst.exe Token: SeLoadDriverPrivilege 2628 DrvInst.exe Token: SeLoadDriverPrivilege 2628 DrvInst.exe Token: SeLoadDriverPrivilege 2628 DrvInst.exe Token: SeRestorePrivilege 1772 msiexec.exe Token: SeTakeOwnershipPrivilege 1772 msiexec.exe Token: SeRestorePrivilege 1772 msiexec.exe Token: SeTakeOwnershipPrivilege 1772 msiexec.exe Token: SeRestorePrivilege 1772 msiexec.exe Token: SeTakeOwnershipPrivilege 1772 msiexec.exe Token: SeRestorePrivilege 1772 msiexec.exe Token: SeTakeOwnershipPrivilege 1772 msiexec.exe Token: SeRestorePrivilege 1772 msiexec.exe Token: SeTakeOwnershipPrivilege 1772 msiexec.exe Token: SeRestorePrivilege 1772 msiexec.exe Token: SeTakeOwnershipPrivilege 1772 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1336 msiexec.exe 1336 msiexec.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1772 wrote to memory of 2564 1772 msiexec.exe 32 PID 1772 wrote to memory of 2564 1772 msiexec.exe 32 PID 1772 wrote to memory of 2564 1772 msiexec.exe 32 PID 1772 wrote to memory of 2564 1772 msiexec.exe 32 PID 1772 wrote to memory of 2564 1772 msiexec.exe 32 PID 1772 wrote to memory of 2564 1772 msiexec.exe 32 PID 1772 wrote to memory of 2564 1772 msiexec.exe 32
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Zero.msi1⤵
- Blocklisted process makes network request
- 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⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1772 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding F3290E43AA0FE363315434A0DC997EDD2⤵
- Loads dropped DLL
PID:2564
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2784
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C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005A8" "00000000000005E4"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2628
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD5fdeb5a666fceb6b3f3da517f8fd4b922
SHA14704416651b62d4cccb761d02b097a54e6f51995
SHA25657c3fa44a4d5946cfb332e9ed05597a53c9a8ad6794e5de4202de0e3b5fad09f
SHA5121017366dd2296750f6dbd34001cd05097aeaf16854088abf9d1179d6affbf6e644fe79bf13fb29949be75c4396b9e8e4fdf6eb587888e03a798125bc86e0cf4b
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Filesize
62KB
MD53ac860860707baaf32469fa7cc7c0192
SHA1c33c2acdaba0e6fa41fd2f00f186804722477639
SHA256d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904
SHA512d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c
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Filesize
164KB
MD54ff65ad929cd9a367680e0e5b1c08166
SHA1c0af0d4396bd1f15c45f39d3b849ba444233b3a2
SHA256c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6
SHA512f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27
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Filesize
584KB
MD5ad6faed544d1f3b892268e4b47425736
SHA1e893ad7e0b52f03cedd0f94a8b9655459286083c
SHA256759936d197e6098be606432002b78067c3feb2dbc294f5776b1c8c3a38314f0b
SHA5120a752417f5e3789fee92c6d755a0c34317b82cb0cb9995ba7b5f102b4e85ad0d48206d66cb766f48a767be2349c546b51e963ee6e032446447b29868943b2af5
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Filesize
584KB
MD5ad6faed544d1f3b892268e4b47425736
SHA1e893ad7e0b52f03cedd0f94a8b9655459286083c
SHA256759936d197e6098be606432002b78067c3feb2dbc294f5776b1c8c3a38314f0b
SHA5120a752417f5e3789fee92c6d755a0c34317b82cb0cb9995ba7b5f102b4e85ad0d48206d66cb766f48a767be2349c546b51e963ee6e032446447b29868943b2af5
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Filesize
584KB
MD5ad6faed544d1f3b892268e4b47425736
SHA1e893ad7e0b52f03cedd0f94a8b9655459286083c
SHA256759936d197e6098be606432002b78067c3feb2dbc294f5776b1c8c3a38314f0b
SHA5120a752417f5e3789fee92c6d755a0c34317b82cb0cb9995ba7b5f102b4e85ad0d48206d66cb766f48a767be2349c546b51e963ee6e032446447b29868943b2af5
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Filesize
584KB
MD5ad6faed544d1f3b892268e4b47425736
SHA1e893ad7e0b52f03cedd0f94a8b9655459286083c
SHA256759936d197e6098be606432002b78067c3feb2dbc294f5776b1c8c3a38314f0b
SHA5120a752417f5e3789fee92c6d755a0c34317b82cb0cb9995ba7b5f102b4e85ad0d48206d66cb766f48a767be2349c546b51e963ee6e032446447b29868943b2af5
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Filesize
709KB
MD5205434c8070719c44bbb463a86ca9280
SHA1ea2237bc8ce1cd27594c2b7589c88c8ff7b40a59
SHA256c07d1b7cd5450153d3f158166ae703cb5f2f6569e081991a1c1888091318638e
SHA5125dab5ce82f4d7b0f5b59339d89ee809416e63fb42d6243570b3809a6fb56b83e3e1f77f3af0c7348fefc0a232a9aea9ed75e8d879c8488b4c36d863d8e02d902
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Filesize
1.1MB
MD5a43940e45269855a510fbcb4b40a9b21
SHA19f66696f7a84898865c9a331b1203f101fcc38ba
SHA2564ff4b41a9550edba51e5aea398538d43c782b1338eaf9866423213a4a8558695
SHA512fa98c29e3a7a0f9e5aad0e9723cb700f53c10ec64e23d78959eae8c332c5f144c2326370ec88eab378f46bbedd89fd85c0a590313e9d977c365cb3def22cb426
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Filesize
584KB
MD5ad6faed544d1f3b892268e4b47425736
SHA1e893ad7e0b52f03cedd0f94a8b9655459286083c
SHA256759936d197e6098be606432002b78067c3feb2dbc294f5776b1c8c3a38314f0b
SHA5120a752417f5e3789fee92c6d755a0c34317b82cb0cb9995ba7b5f102b4e85ad0d48206d66cb766f48a767be2349c546b51e963ee6e032446447b29868943b2af5
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Filesize
584KB
MD5ad6faed544d1f3b892268e4b47425736
SHA1e893ad7e0b52f03cedd0f94a8b9655459286083c
SHA256759936d197e6098be606432002b78067c3feb2dbc294f5776b1c8c3a38314f0b
SHA5120a752417f5e3789fee92c6d755a0c34317b82cb0cb9995ba7b5f102b4e85ad0d48206d66cb766f48a767be2349c546b51e963ee6e032446447b29868943b2af5
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Filesize
584KB
MD5ad6faed544d1f3b892268e4b47425736
SHA1e893ad7e0b52f03cedd0f94a8b9655459286083c
SHA256759936d197e6098be606432002b78067c3feb2dbc294f5776b1c8c3a38314f0b
SHA5120a752417f5e3789fee92c6d755a0c34317b82cb0cb9995ba7b5f102b4e85ad0d48206d66cb766f48a767be2349c546b51e963ee6e032446447b29868943b2af5
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Filesize
709KB
MD5205434c8070719c44bbb463a86ca9280
SHA1ea2237bc8ce1cd27594c2b7589c88c8ff7b40a59
SHA256c07d1b7cd5450153d3f158166ae703cb5f2f6569e081991a1c1888091318638e
SHA5125dab5ce82f4d7b0f5b59339d89ee809416e63fb42d6243570b3809a6fb56b83e3e1f77f3af0c7348fefc0a232a9aea9ed75e8d879c8488b4c36d863d8e02d902
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Filesize
1.1MB
MD5a43940e45269855a510fbcb4b40a9b21
SHA19f66696f7a84898865c9a331b1203f101fcc38ba
SHA2564ff4b41a9550edba51e5aea398538d43c782b1338eaf9866423213a4a8558695
SHA512fa98c29e3a7a0f9e5aad0e9723cb700f53c10ec64e23d78959eae8c332c5f144c2326370ec88eab378f46bbedd89fd85c0a590313e9d977c365cb3def22cb426