Analysis
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max time kernel
135s -
max time network
86s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-06-2022 11:36
Static task
static1
Behavioral task
behavioral1
Sample
face46e6593206867da39e47001f134a00385898a36b8142a21ad54954682666.msi
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
face46e6593206867da39e47001f134a00385898a36b8142a21ad54954682666.msi
Resource
win10v2004-20220414-en
windows10-2004_x64
0 signatures
0 seconds
General
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Target
face46e6593206867da39e47001f134a00385898a36b8142a21ad54954682666.msi
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Size
224KB
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MD5
ff82937564ff59eb6207f079cdc8e43d
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SHA1
7cfe0a71c4a2508a1af80e640ec8b1b034edb604
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SHA256
face46e6593206867da39e47001f134a00385898a36b8142a21ad54954682666
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SHA512
4c4c2f59ef157de6570bf16daff958d9ccdafd8ba6cf3f946cabaa413c085c05242b2499552e789f0f0bc9e1cbf0b74ec6327340d29c80a694aeddf444788ee1
Score
10/10
Malware Config
Signatures
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Matanbuchus
A loader sold as MaaS first seen in February 2021.
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Blocklisted process makes network request 3 IoCs
flow pid Process 2 1684 msiexec.exe 4 1684 msiexec.exe 5 1540 msiexec.exe -
Loads dropped DLL 1 IoCs
pid Process 1724 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) \??\K: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\J: 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) \??\J: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\F: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\F: msiexec.exe -
Drops file in Windows directory 10 IoCs
description ioc Process File created C:\Windows\Installer\6c4bef.msi msiexec.exe File created C:\Windows\Installer\6c4bf0.ipi msiexec.exe File created C:\Windows\Installer\6c4bf2.msi msiexec.exe File opened for modification C:\Windows\Installer\6c4bf0.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 opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\MSI505F.tmp msiexec.exe File opened for modification C:\Windows\INF\setupapi.ev1 DrvInst.exe File opened for modification C:\Windows\Installer\6c4bef.msi 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\Disallowed 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\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\Policies\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs 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\Certificates 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\Certificates 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\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\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\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\Policies\Microsoft\SystemCertificates\trust\CTLs 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\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs DrvInst.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1540 msiexec.exe 1540 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 1684 msiexec.exe Token: SeIncreaseQuotaPrivilege 1684 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeSecurityPrivilege 1540 msiexec.exe Token: SeCreateTokenPrivilege 1684 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1684 msiexec.exe Token: SeLockMemoryPrivilege 1684 msiexec.exe Token: SeIncreaseQuotaPrivilege 1684 msiexec.exe Token: SeMachineAccountPrivilege 1684 msiexec.exe Token: SeTcbPrivilege 1684 msiexec.exe Token: SeSecurityPrivilege 1684 msiexec.exe Token: SeTakeOwnershipPrivilege 1684 msiexec.exe Token: SeLoadDriverPrivilege 1684 msiexec.exe Token: SeSystemProfilePrivilege 1684 msiexec.exe Token: SeSystemtimePrivilege 1684 msiexec.exe Token: SeProfSingleProcessPrivilege 1684 msiexec.exe Token: SeIncBasePriorityPrivilege 1684 msiexec.exe Token: SeCreatePagefilePrivilege 1684 msiexec.exe Token: SeCreatePermanentPrivilege 1684 msiexec.exe Token: SeBackupPrivilege 1684 msiexec.exe Token: SeRestorePrivilege 1684 msiexec.exe Token: SeShutdownPrivilege 1684 msiexec.exe Token: SeDebugPrivilege 1684 msiexec.exe Token: SeAuditPrivilege 1684 msiexec.exe Token: SeSystemEnvironmentPrivilege 1684 msiexec.exe Token: SeChangeNotifyPrivilege 1684 msiexec.exe Token: SeRemoteShutdownPrivilege 1684 msiexec.exe Token: SeUndockPrivilege 1684 msiexec.exe Token: SeSyncAgentPrivilege 1684 msiexec.exe Token: SeEnableDelegationPrivilege 1684 msiexec.exe Token: SeManageVolumePrivilege 1684 msiexec.exe Token: SeImpersonatePrivilege 1684 msiexec.exe Token: SeCreateGlobalPrivilege 1684 msiexec.exe Token: SeBackupPrivilege 1844 vssvc.exe Token: SeRestorePrivilege 1844 vssvc.exe Token: SeAuditPrivilege 1844 vssvc.exe Token: SeBackupPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1892 DrvInst.exe Token: SeRestorePrivilege 1892 DrvInst.exe Token: SeRestorePrivilege 1892 DrvInst.exe Token: SeRestorePrivilege 1892 DrvInst.exe Token: SeRestorePrivilege 1892 DrvInst.exe Token: SeRestorePrivilege 1892 DrvInst.exe Token: SeRestorePrivilege 1892 DrvInst.exe Token: SeLoadDriverPrivilege 1892 DrvInst.exe Token: SeLoadDriverPrivilege 1892 DrvInst.exe Token: SeLoadDriverPrivilege 1892 DrvInst.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe Token: SeTakeOwnershipPrivilege 1540 msiexec.exe Token: SeRestorePrivilege 1540 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1684 msiexec.exe 1684 msiexec.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 1540 wrote to memory of 1968 1540 msiexec.exe 32 PID 1540 wrote to memory of 1968 1540 msiexec.exe 32 PID 1540 wrote to memory of 1968 1540 msiexec.exe 32 PID 1540 wrote to memory of 1752 1540 msiexec.exe 33 PID 1540 wrote to memory of 1752 1540 msiexec.exe 33 PID 1540 wrote to memory of 1752 1540 msiexec.exe 33 PID 1540 wrote to memory of 1752 1540 msiexec.exe 33 PID 1540 wrote to memory of 1752 1540 msiexec.exe 33 PID 1752 wrote to memory of 1724 1752 regsvr32.exe 34 PID 1752 wrote to memory of 1724 1752 regsvr32.exe 34 PID 1752 wrote to memory of 1724 1752 regsvr32.exe 34 PID 1752 wrote to memory of 1724 1752 regsvr32.exe 34 PID 1752 wrote to memory of 1724 1752 regsvr32.exe 34 PID 1752 wrote to memory of 1724 1752 regsvr32.exe 34 PID 1752 wrote to memory of 1724 1752 regsvr32.exe 34
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\face46e6593206867da39e47001f134a00385898a36b8142a21ad54954682666.msi1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1684
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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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1540 -
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\AdobeFontPack\notify.vbs2⤵PID:1968
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C:\Windows\system32\regsvr32.exeregsvr32.exe -n -i:"Install" C:\Users\Admin\AppData\Local\AdobeFontPack\main.dll2⤵
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Windows\SysWOW64\regsvr32.exe-n -i:"Install" C:\Users\Admin\AppData\Local\AdobeFontPack\main.dll3⤵
- Loads dropped DLL
PID:1724
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1844
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C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000490" "0000000000000394"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:1892
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
60KB
MD5308336e7f515478969b24c13ded11ede
SHA18fb0cf42b77dbbef224a1e5fc38abc2486320775
SHA256889b832323726a9f10ad03f85562048fdcfe20c9ff6f9d37412cf477b4e92ff9
SHA51261ad97228cd6c3909ef3ac5e4940199971f293bdd0d5eb7916e60469573a44b6287c0fa1e0b6c1389df35eb6c9a7d2a61fdb318d4a886a3821ef5a9dab3ac24f
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Filesize
1KB
MD578f2fcaa601f2fb4ebc937ba532e7549
SHA1ddfb16cd4931c973a2037d3fc83a4d7d775d05e4
SHA256552f7bdcf1a7af9e6ce672017f4f12abf77240c78e761ac203d1d9d20ac89988
SHA512bcad73a7a5afb7120549dd54ba1f15c551ae24c7181f008392065d1ed006e6fa4fa5a60538d52461b15a12f5292049e929cffde15cc400dec9cdfca0b36a68dd
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize304B
MD5fc059883703b9182ca41ea313cad2fda
SHA19e0a956d4e9f5544c1e5f6f5156dfe01546467ed
SHA2569aefba37b067a89fbc5d66aef731d26fbb56e75a80f9be62d44cf79361c4ea26
SHA5128ab8e6ef5d3c7e015b062c45c13d8ad1254d9a105a9786881881ea163c906a8a65c0dfc40bee4eceef87dfb42320bbe4c8cc14460c73aaa2de374af0169ddad1
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F2E248BEDDBB2D85122423C41028BFD4
Filesize254B
MD5087b762a89db5950ddf5efe229eb42cf
SHA13b13e66c1453378bd389108c14713fb74824fa21
SHA256b059509172760bd7d94a4e9867ae6acbc012b30734ff109d7088dcb540410d8f
SHA51242cc59334b90e1bc6e7828f50bfa95d4a36cdd7aecfce0f100f39dad9bb5c120caf8e807a5ba0742a5f800eae4202702e91dfcd608852e741ea92d9bf0d1b772
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Filesize
401KB
MD58cb8cf84ab20159702e6803cd6ce364a
SHA105103f90540f3e8a9599e9f1ab6a11c791aec393
SHA25614debc481aa0a26d3a0bdeed0e56b3ae9e301220f2606aae624d57a9d0617d6f
SHA5129d9cb037b9c79f88fb89a9757f6c27848d7cc7c448594faf58cedb12925756206106235a2dd44142157e19e2c17535fa942156322768e62579aab55e6a6f64da
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Filesize
68B
MD50308aa2c8dab8a69de41f5d16679bb9b
SHA1c6827bf44a433ff086e787653361859d6f6e2fb3
SHA2560a7e8fd68575db5f84c18b9a26e4058323d1357e2a29a5b12278e4bfa6939489
SHA5121a1ca92e3c8d52c8b5adbb3117a88d8a2a8c33eaf2f7b0d620fe006653f57f4ba0b803884616594ca31e13a1b0b59ddae52cecf044621ec44371084dac6beb72
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Filesize
401KB
MD58cb8cf84ab20159702e6803cd6ce364a
SHA105103f90540f3e8a9599e9f1ab6a11c791aec393
SHA25614debc481aa0a26d3a0bdeed0e56b3ae9e301220f2606aae624d57a9d0617d6f
SHA5129d9cb037b9c79f88fb89a9757f6c27848d7cc7c448594faf58cedb12925756206106235a2dd44142157e19e2c17535fa942156322768e62579aab55e6a6f64da