Analysis
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max time kernel
143s -
max time network
96s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
16-06-2022 18:20
Static task
static1
Behavioral task
behavioral1
Sample
SCAN-068589.pdf.msi
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
SCAN-068589.pdf.msi
Resource
win10v2004-20220414-en
General
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Target
SCAN-068589.pdf.msi
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Size
224KB
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MD5
c0ee31bc6536ae8cb7e5d8809676920a
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SHA1
b21482d1072e5cb65488f2c181f38c75d8c80dcd
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SHA256
2d8740ea16e9457a358ebea73ad377ff75f7aa9bdf748f0d801f5a261977eda4
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SHA512
66ed8f4762f3cb7b4026c9d7eeaec2ee4e8275495d527f99fd163d0a72f436ef2e2fdad88f7dcad87e3dd10c7afffe7b2f0f6c3412de68c16e96f9377cb4fe1d
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
Processes:
msiexec.exemsiexec.exeflow pid process 2 884 msiexec.exe 4 884 msiexec.exe 5 1784 msiexec.exe -
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 1076 regsvr32.exe -
Enumerates connected drives 3 TTPs 48 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
msiexec.exemsiexec.exedescription ioc process File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\F: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\F: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\B: msiexec.exe -
Drops file in Windows directory 10 IoCs
Processes:
DrvInst.exemsiexec.exedescription ioc process File opened for modification C:\Windows\INF\setupapi.ev1 DrvInst.exe File opened for modification C:\Windows\INF\setupapi.dev.log DrvInst.exe File opened for modification C:\Windows\Installer\ msiexec.exe File created C:\Windows\Installer\6ca4db.msi msiexec.exe File opened for modification C:\Windows\INF\setupapi.ev3 DrvInst.exe File opened for modification C:\Windows\Installer\6ca4d8.msi msiexec.exe File created C:\Windows\Installer\6ca4d9.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSIA909.tmp msiexec.exe File opened for modification C:\Windows\Installer\6ca4d9.ipi msiexec.exe File created C:\Windows\Installer\6ca4d8.msi msiexec.exe -
Modifies data under HKEY_USERS 43 IoCs
Processes:
DrvInst.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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\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\trust\CRLs DrvInst.exe 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\Policies\Microsoft\SystemCertificates\CA\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\SmartCardRoot DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\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\TrustedPeople\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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 DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\CTLs 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\Policies\Microsoft\SystemCertificates\CA 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 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\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
msiexec.exepid process 1784 msiexec.exe 1784 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
msiexec.exemsiexec.exevssvc.exeDrvInst.exedescription pid process Token: SeShutdownPrivilege 884 msiexec.exe Token: SeIncreaseQuotaPrivilege 884 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeTakeOwnershipPrivilege 1784 msiexec.exe Token: SeSecurityPrivilege 1784 msiexec.exe Token: SeCreateTokenPrivilege 884 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 884 msiexec.exe Token: SeLockMemoryPrivilege 884 msiexec.exe Token: SeIncreaseQuotaPrivilege 884 msiexec.exe Token: SeMachineAccountPrivilege 884 msiexec.exe Token: SeTcbPrivilege 884 msiexec.exe Token: SeSecurityPrivilege 884 msiexec.exe Token: SeTakeOwnershipPrivilege 884 msiexec.exe Token: SeLoadDriverPrivilege 884 msiexec.exe Token: SeSystemProfilePrivilege 884 msiexec.exe Token: SeSystemtimePrivilege 884 msiexec.exe Token: SeProfSingleProcessPrivilege 884 msiexec.exe Token: SeIncBasePriorityPrivilege 884 msiexec.exe Token: SeCreatePagefilePrivilege 884 msiexec.exe Token: SeCreatePermanentPrivilege 884 msiexec.exe Token: SeBackupPrivilege 884 msiexec.exe Token: SeRestorePrivilege 884 msiexec.exe Token: SeShutdownPrivilege 884 msiexec.exe Token: SeDebugPrivilege 884 msiexec.exe Token: SeAuditPrivilege 884 msiexec.exe Token: SeSystemEnvironmentPrivilege 884 msiexec.exe Token: SeChangeNotifyPrivilege 884 msiexec.exe Token: SeRemoteShutdownPrivilege 884 msiexec.exe Token: SeUndockPrivilege 884 msiexec.exe Token: SeSyncAgentPrivilege 884 msiexec.exe Token: SeEnableDelegationPrivilege 884 msiexec.exe Token: SeManageVolumePrivilege 884 msiexec.exe Token: SeImpersonatePrivilege 884 msiexec.exe Token: SeCreateGlobalPrivilege 884 msiexec.exe Token: SeBackupPrivilege 944 vssvc.exe Token: SeRestorePrivilege 944 vssvc.exe Token: SeAuditPrivilege 944 vssvc.exe Token: SeBackupPrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1816 DrvInst.exe Token: SeRestorePrivilege 1816 DrvInst.exe Token: SeRestorePrivilege 1816 DrvInst.exe Token: SeRestorePrivilege 1816 DrvInst.exe Token: SeRestorePrivilege 1816 DrvInst.exe Token: SeRestorePrivilege 1816 DrvInst.exe Token: SeRestorePrivilege 1816 DrvInst.exe Token: SeLoadDriverPrivilege 1816 DrvInst.exe Token: SeLoadDriverPrivilege 1816 DrvInst.exe Token: SeLoadDriverPrivilege 1816 DrvInst.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeTakeOwnershipPrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeTakeOwnershipPrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeTakeOwnershipPrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeTakeOwnershipPrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeTakeOwnershipPrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeTakeOwnershipPrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe Token: SeTakeOwnershipPrivilege 1784 msiexec.exe Token: SeRestorePrivilege 1784 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
msiexec.exepid process 884 msiexec.exe 884 msiexec.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
msiexec.exeregsvr32.exedescription pid process target process PID 1784 wrote to memory of 1992 1784 msiexec.exe regsvr32.exe PID 1784 wrote to memory of 1992 1784 msiexec.exe regsvr32.exe PID 1784 wrote to memory of 1992 1784 msiexec.exe regsvr32.exe PID 1784 wrote to memory of 1992 1784 msiexec.exe regsvr32.exe PID 1784 wrote to memory of 1992 1784 msiexec.exe regsvr32.exe PID 1784 wrote to memory of 1448 1784 msiexec.exe wscript.exe PID 1784 wrote to memory of 1448 1784 msiexec.exe wscript.exe PID 1784 wrote to memory of 1448 1784 msiexec.exe wscript.exe PID 1992 wrote to memory of 1076 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 1076 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 1076 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 1076 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 1076 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 1076 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 1076 1992 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\SCAN-068589.pdf.msi1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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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
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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
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C:\Windows\SysWOW64\regsvr32.exe-n -i:"Install" C:\Users\Admin\AppData\Local\AdobeFontPack\main.dll3⤵
- Loads dropped DLL
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\AdobeFontPack\notify.vbs2⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003C4" "00000000000003C0"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015Filesize
60KB
MD5308336e7f515478969b24c13ded11ede
SHA18fb0cf42b77dbbef224a1e5fc38abc2486320775
SHA256889b832323726a9f10ad03f85562048fdcfe20c9ff6f9d37412cf477b4e92ff9
SHA51261ad97228cd6c3909ef3ac5e4940199971f293bdd0d5eb7916e60469573a44b6287c0fa1e0b6c1389df35eb6c9a7d2a61fdb318d4a886a3821ef5a9dab3ac24f
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F2E248BEDDBB2D85122423C41028BFD4Filesize
1KB
MD578f2fcaa601f2fb4ebc937ba532e7549
SHA1ddfb16cd4931c973a2037d3fc83a4d7d775d05e4
SHA256552f7bdcf1a7af9e6ce672017f4f12abf77240c78e761ac203d1d9d20ac89988
SHA512bcad73a7a5afb7120549dd54ba1f15c551ae24c7181f008392065d1ed006e6fa4fa5a60538d52461b15a12f5292049e929cffde15cc400dec9cdfca0b36a68dd
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015Filesize
342B
MD5f9a5e0a13c6703bb4260cee82f20a2d5
SHA1639e6af9cd9aac1a2f99b413f4b0447b7f9cb32a
SHA256d4dc696f2177b86a83f8521663c2501525be3a6ae4e17e0eb25c6bafdf30fd66
SHA5121e0863578f573caad974ab82d6add8607c0e812a47fcab7b58c27a342a6baae1793ad504e50a4366a90769172c69c35175b5dec4fa9540e06c7cff4fe4911cd5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F2E248BEDDBB2D85122423C41028BFD4Filesize
254B
MD580e8ab93f703cd63356d7a83314e80d5
SHA1abd414aaa0bb571f02b8e8e2cfdd56e1a2f6e9fa
SHA256a14e9481a8704dcade5eb7d7a48d8510d7bd6b200947ba1bebdac3e673c871e4
SHA5121ce4a8ea8683ebd12c7ca423ecc127c13b7684a70243e9784af32c9b2dace5e556834c39f3b1247184a2ef18d4d3df1f35d9ade8cd22ee81ff960ede20f055f2
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C:\Users\Admin\AppData\Local\AdobeFontPack\main.dllFilesize
401KB
MD593f85342ebefa3b658ee04dc42c0df3a
SHA1844736386b67d21566b7a23bedd42c4bb0223c3d
SHA25660f030597c75f9df0f7a494cb5432b600d41775cfe5cf13006c1448fa3a68d8d
SHA5123cf20695b83e9b45804214a6b96337cff29da6993db8ba368380ba1e5455b679bba3646f6b27d2bac239caf4f6697fb9087d5679674065eba9d7fd514c85edb2
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C:\Users\Admin\AppData\Local\AdobeFontPack\notify.vbsFilesize
68B
MD50308aa2c8dab8a69de41f5d16679bb9b
SHA1c6827bf44a433ff086e787653361859d6f6e2fb3
SHA2560a7e8fd68575db5f84c18b9a26e4058323d1357e2a29a5b12278e4bfa6939489
SHA5121a1ca92e3c8d52c8b5adbb3117a88d8a2a8c33eaf2f7b0d620fe006653f57f4ba0b803884616594ca31e13a1b0b59ddae52cecf044621ec44371084dac6beb72
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\Users\Admin\AppData\Local\AdobeFontPack\main.dllFilesize
401KB
MD593f85342ebefa3b658ee04dc42c0df3a
SHA1844736386b67d21566b7a23bedd42c4bb0223c3d
SHA25660f030597c75f9df0f7a494cb5432b600d41775cfe5cf13006c1448fa3a68d8d
SHA5123cf20695b83e9b45804214a6b96337cff29da6993db8ba368380ba1e5455b679bba3646f6b27d2bac239caf4f6697fb9087d5679674065eba9d7fd514c85edb2
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memory/884-54-0x000007FEFC4B1000-0x000007FEFC4B3000-memory.dmpFilesize
8KB
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memory/1076-64-0x0000000000000000-mapping.dmp
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memory/1076-66-0x0000000075741000-0x0000000075743000-memory.dmpFilesize
8KB
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memory/1448-61-0x0000000000000000-mapping.dmp
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memory/1992-60-0x0000000000000000-mapping.dmp