Overview
overview
10Static
static
10Bootkits/5...1a.exe
windows7-x64
1Bootkits/5...1a.exe
windows10-2004-x64
6Bootkits/6...86.exe
windows7-x64
7Bootkits/6...86.exe
windows10-2004-x64
7Bootkits/8...f6.msi
windows7-x64
7Bootkits/8...f6.msi
windows10-2004-x64
7Bootkits/f...b1.exe
windows7-x64
7Bootkits/f...b1.exe
windows10-2004-x64
Rootkits/0...c7.exe
windows7-x64
8Rootkits/0...c7.exe
windows10-2004-x64
8Rootkits/0...6d.exe
windows7-x64
10Rootkits/0...6d.exe
windows10-2004-x64
1Rootkits/0...ae.exe
windows7-x64
1Rootkits/0...ae.exe
windows10-2004-x64
1Rootkits/0...3e.exe
windows7-x64
7Rootkits/0...3e.exe
windows10-2004-x64
10Rootkits/0...10.exe
windows7-x64
7Rootkits/0...10.exe
windows10-2004-x64
7Rootkits/2...8e.dll
windows7-x64
1Rootkits/2...8e.dll
windows10-2004-x64
1Rootkits/2...a4.exe
windows7-x64
10Rootkits/2...a4.exe
windows10-2004-x64
Rootkits/4...1b.exe
windows7-x64
7Rootkits/4...1b.exe
windows10-2004-x64
7Rootkits/6...d9.exe
windows7-x64
1Rootkits/6...d9.exe
windows10-2004-x64
1Rootkits/7...e8.exe
windows7-x64
7Rootkits/7...e8.exe
windows10-2004-x64
7Rootkits/8...22.exe
windows7-x64
1Rootkits/8...22.exe
windows10-2004-x64
1Rootkits/9...99.exe
windows7-x64
8Rootkits/9...99.exe
windows10-2004-x64
8Analysis
-
max time kernel
70s -
max time network
85s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
08-11-2023 03:15
Behavioral task
behavioral1
Sample
Bootkits/5ef62c780d7c9f82dea098972f66d5b3367841913444933cdb779adaecd06d1a.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral2
Sample
Bootkits/5ef62c780d7c9f82dea098972f66d5b3367841913444933cdb779adaecd06d1a.exe
Resource
win10v2004-20231020-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
Bootkits/6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral4
Sample
Bootkits/6b0cd074a6c556f4d1fe0088c15160eb13f847974c4307f9eeeea4dc33d49286.exe
Resource
win10v2004-20231020-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
Bootkits/8dcc573293ae9a545655a47e23f106738a190f5318c31124bd3a73b12f128df6.msi
Resource
win7-20231020-en
windows7-x64
Behavioral task
behavioral6
Sample
Bootkits/8dcc573293ae9a545655a47e23f106738a190f5318c31124bd3a73b12f128df6.msi
Resource
win10v2004-20231020-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
Bootkits/f428b4d0673ae67472fbe212086e70eeb5b6876e80a74b59ff8ba3e6def5e9b1.exe
Resource
win7-20231025-en
windows7-x64
Behavioral task
behavioral8
Sample
Bootkits/f428b4d0673ae67472fbe212086e70eeb5b6876e80a74b59ff8ba3e6def5e9b1.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
Rootkits/03e903602037420acf4d1bc5084923c59385c5594f3a2de6fcf320bd4746d6c7.exe
Resource
win7-20231020-en
windows7-x64
Behavioral task
behavioral10
Sample
Rootkits/03e903602037420acf4d1bc5084923c59385c5594f3a2de6fcf320bd4746d6c7.exe
Resource
win10v2004-20231020-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
Rootkits/044d94183a778f39e47f255fcb985d20bfd885771a74217cfbca9e63d7d9936d.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral12
Sample
Rootkits/044d94183a778f39e47f255fcb985d20bfd885771a74217cfbca9e63d7d9936d.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
Rootkits/0925b8985b19d7925d68186d666b0050a4cb3f2a577d64765d770a57a2eab9ae.exe
Resource
win7-20231020-en
windows7-x64
Behavioral task
behavioral14
Sample
Rootkits/0925b8985b19d7925d68186d666b0050a4cb3f2a577d64765d770a57a2eab9ae.exe
Resource
win10v2004-20231020-en
windows10-2004-x64
Behavioral task
behavioral15
Sample
Rootkits/096322b16a7395e5534e9db6752aab1bd54275515f33f993d066ec7b46ed5b3e.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral16
Sample
Rootkits/096322b16a7395e5534e9db6752aab1bd54275515f33f993d066ec7b46ed5b3e.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
Behavioral task
behavioral17
Sample
Rootkits/0b1b37d85a27819a8b4b9d7691e55dfc93311f7d5159433d1ac09854fcb13510.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral18
Sample
Rootkits/0b1b37d85a27819a8b4b9d7691e55dfc93311f7d5159433d1ac09854fcb13510.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
Behavioral task
behavioral19
Sample
Rootkits/2141974f665f4d8fecb6d8ea06add624b57f320f901368847175570ee716fd8e.dll
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral20
Sample
Rootkits/2141974f665f4d8fecb6d8ea06add624b57f320f901368847175570ee716fd8e.dll
Resource
win10v2004-20231023-en
windows10-2004-x64
Behavioral task
behavioral21
Sample
Rootkits/22ee7b8104599b47313195598ffc34aafd6a6552dcce0e7b3232ced3a90ac9a4.exe
Resource
win7-20231020-en
windows7-x64
Behavioral task
behavioral22
Sample
Rootkits/22ee7b8104599b47313195598ffc34aafd6a6552dcce0e7b3232ced3a90ac9a4.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
Behavioral task
behavioral23
Sample
Rootkits/40fd1fcff12afcf503175d91a18d7a6f7b4ade68726328db38eb6fd74304561b.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral24
Sample
Rootkits/40fd1fcff12afcf503175d91a18d7a6f7b4ade68726328db38eb6fd74304561b.exe
Resource
win10v2004-20231025-en
windows10-2004-x64
Behavioral task
behavioral25
Sample
Rootkits/659e0d1b2405cadfa560fe648cbf6866720dd40bb6f4081d3dce2dffe20595d9.exe
Resource
win7-20231025-en
windows7-x64
Behavioral task
behavioral26
Sample
Rootkits/659e0d1b2405cadfa560fe648cbf6866720dd40bb6f4081d3dce2dffe20595d9.exe
Resource
win10v2004-20231025-en
windows10-2004-x64
Behavioral task
behavioral27
Sample
Rootkits/757cd417096f37de99461b69b70ccc532fb294b8ecbf18e3fddaea7bb6058ce8.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral28
Sample
Rootkits/757cd417096f37de99461b69b70ccc532fb294b8ecbf18e3fddaea7bb6058ce8.exe
Resource
win10v2004-20231025-en
windows10-2004-x64
Behavioral task
behavioral29
Sample
Rootkits/84ed7fec67de5621806dbb43af5167a5fc60ab7f2403448519dc0eca2b8f9022.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral30
Sample
Rootkits/84ed7fec67de5621806dbb43af5167a5fc60ab7f2403448519dc0eca2b8f9022.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
Behavioral task
behavioral31
Sample
Rootkits/9114dc1c44f6a1b7d63ca95e04541d833c49a3e65a717471042bd0ec19a3eb99.exe
Resource
win7-20231023-en
windows7-x64
Behavioral task
behavioral32
Sample
Rootkits/9114dc1c44f6a1b7d63ca95e04541d833c49a3e65a717471042bd0ec19a3eb99.exe
Resource
win10v2004-20231023-en
windows10-2004-x64
General
-
Target
Bootkits/8dcc573293ae9a545655a47e23f106738a190f5318c31124bd3a73b12f128df6.msi
-
Size
433KB
-
MD5
c73606235b64566e6cbc67b9f608b4f8
-
SHA1
880256847cad1443b2865b27fad053667a30af21
-
SHA256
8dcc573293ae9a545655a47e23f106738a190f5318c31124bd3a73b12f128df6
-
SHA512
0c068c74fc4cf284652f014fd2a89bda64d2013a33501b715709bb5edd79ccc8d6ff79e91562be1c46bf89a7176aaf15dd4bf12fc6101d23b584d34a2a6b0d5e
-
SSDEEP
3072:943ygYXkj7q0vTYDryOjnpU6ij4qpXqnnDibAJBVk6YYA69Z3D3NPT+7qSS:945iLTqp4nwEzYYA83D3NPT+7
Malware Config
Signatures
-
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\OPYVMBXSEB.lnk MsiExec.exe -
Loads dropped DLL 2 IoCs
pid Process 2700 MsiExec.exe 2700 MsiExec.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows\CurrentVersion\Run\OPYVMBXSEB = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\OPYVMBXSEB.lnk" MsiExec.exe -
Blocklisted process makes network request 1 IoCs
flow pid Process 2 2700 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) \??\E: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\L: 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) \??\U: 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) \??\G: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\W: msiexec.exe -
Drops file in Windows directory 8 IoCs
description ioc Process File opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\MSI5E58.tmp msiexec.exe File opened for modification C:\Windows\Installer\f77013c.ipi msiexec.exe File created C:\Windows\Installer\f770139.msi msiexec.exe File opened for modification C:\Windows\Installer\f770139.msi msiexec.exe File opened for modification C:\Windows\Installer\MSI1F4.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSI3F8.tmp msiexec.exe File created C:\Windows\Installer\f77013c.ipi msiexec.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2312 msiexec.exe 2312 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeShutdownPrivilege 1184 msiexec.exe Token: SeIncreaseQuotaPrivilege 1184 msiexec.exe Token: SeRestorePrivilege 2312 msiexec.exe Token: SeTakeOwnershipPrivilege 2312 msiexec.exe Token: SeSecurityPrivilege 2312 msiexec.exe Token: SeCreateTokenPrivilege 1184 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1184 msiexec.exe Token: SeLockMemoryPrivilege 1184 msiexec.exe Token: SeIncreaseQuotaPrivilege 1184 msiexec.exe Token: SeMachineAccountPrivilege 1184 msiexec.exe Token: SeTcbPrivilege 1184 msiexec.exe Token: SeSecurityPrivilege 1184 msiexec.exe Token: SeTakeOwnershipPrivilege 1184 msiexec.exe Token: SeLoadDriverPrivilege 1184 msiexec.exe Token: SeSystemProfilePrivilege 1184 msiexec.exe Token: SeSystemtimePrivilege 1184 msiexec.exe Token: SeProfSingleProcessPrivilege 1184 msiexec.exe Token: SeIncBasePriorityPrivilege 1184 msiexec.exe Token: SeCreatePagefilePrivilege 1184 msiexec.exe Token: SeCreatePermanentPrivilege 1184 msiexec.exe Token: SeBackupPrivilege 1184 msiexec.exe Token: SeRestorePrivilege 1184 msiexec.exe Token: SeShutdownPrivilege 1184 msiexec.exe Token: SeDebugPrivilege 1184 msiexec.exe Token: SeAuditPrivilege 1184 msiexec.exe Token: SeSystemEnvironmentPrivilege 1184 msiexec.exe Token: SeChangeNotifyPrivilege 1184 msiexec.exe Token: SeRemoteShutdownPrivilege 1184 msiexec.exe Token: SeUndockPrivilege 1184 msiexec.exe Token: SeSyncAgentPrivilege 1184 msiexec.exe Token: SeEnableDelegationPrivilege 1184 msiexec.exe Token: SeManageVolumePrivilege 1184 msiexec.exe Token: SeImpersonatePrivilege 1184 msiexec.exe Token: SeCreateGlobalPrivilege 1184 msiexec.exe Token: SeRestorePrivilege 2312 msiexec.exe Token: SeTakeOwnershipPrivilege 2312 msiexec.exe Token: SeRestorePrivilege 2312 msiexec.exe Token: SeTakeOwnershipPrivilege 2312 msiexec.exe Token: SeRestorePrivilege 2312 msiexec.exe Token: SeTakeOwnershipPrivilege 2312 msiexec.exe Token: SeRestorePrivilege 2312 msiexec.exe Token: SeTakeOwnershipPrivilege 2312 msiexec.exe Token: SeRestorePrivilege 2312 msiexec.exe Token: SeTakeOwnershipPrivilege 2312 msiexec.exe Token: SeRestorePrivilege 2312 msiexec.exe Token: SeTakeOwnershipPrivilege 2312 msiexec.exe Token: SeRestorePrivilege 2312 msiexec.exe Token: SeTakeOwnershipPrivilege 2312 msiexec.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1184 msiexec.exe 2700 MsiExec.exe 1184 msiexec.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2700 MsiExec.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2312 wrote to memory of 2700 2312 msiexec.exe 31 PID 2312 wrote to memory of 2700 2312 msiexec.exe 31 PID 2312 wrote to memory of 2700 2312 msiexec.exe 31 PID 2312 wrote to memory of 2700 2312 msiexec.exe 31 PID 2312 wrote to memory of 2700 2312 msiexec.exe 31 PID 2312 wrote to memory of 2700 2312 msiexec.exe 31 PID 2312 wrote to memory of 2700 2312 msiexec.exe 31
Processes
-
C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Bootkits\8dcc573293ae9a545655a47e23f106738a190f5318c31124bd3a73b12f128df6.msi1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1184
-
C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2312 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 31A7A47686D9513862A8A74E8117E4AD2⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Blocklisted process makes network request
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2700
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
796B
MD5618a785c96e0d83a2f90dfa4bcbcae62
SHA184af1c2392846aa20ce5e996c985d01d40300ca4
SHA256e73027848e423bb1b86033c470dca5dafb1331429651091c4dea49831168d267
SHA51260b4060305679a860d22bd0df0352ab087e482c2844679c2df413db2bb9352199ec25c749c69ccbd59e6777b48121e71dd8523ed472b2452209ab36b81e10cb3
-
Filesize
21KB
MD56ec129523ec5d84db831c11c6a223f85
SHA10c4347962c9b7eb6d6a2246c0b8de1ce6161e1e6
SHA256fb12ae17e3cfbc749dcf96f1d66c8b195e5e4fbf9dc36a9fb1d0aa8ec8a3cc30
SHA512efc627cbb949bd9e4cfdf5f3bbfb23ca81c20d4d503a93799849deb7db41f26a123001271cf57173464b420f87f30ecec49df60d13a35de326b3b11fbc0dedd2
-
Filesize
91KB
MD55c5bef05b6f3806106f8f3ce13401cc1
SHA16005fbe17f6e917ac45317552409d7a60976db14
SHA256f2f3ae8ca06f5cf320ca1d234a623bf55cf2b84c1d6dea3d85d5392e29aaf437
SHA51297933227b6002127385ace025f85a26358e47ee79c883f03180d474c15dbaf28a88492c8e53aefc0d305872edd27db0b4468da13e6f0337988f58d2ee35fd797
-
Filesize
91KB
MD55c5bef05b6f3806106f8f3ce13401cc1
SHA16005fbe17f6e917ac45317552409d7a60976db14
SHA256f2f3ae8ca06f5cf320ca1d234a623bf55cf2b84c1d6dea3d85d5392e29aaf437
SHA51297933227b6002127385ace025f85a26358e47ee79c883f03180d474c15dbaf28a88492c8e53aefc0d305872edd27db0b4468da13e6f0337988f58d2ee35fd797
-
Filesize
91KB
MD55c5bef05b6f3806106f8f3ce13401cc1
SHA16005fbe17f6e917ac45317552409d7a60976db14
SHA256f2f3ae8ca06f5cf320ca1d234a623bf55cf2b84c1d6dea3d85d5392e29aaf437
SHA51297933227b6002127385ace025f85a26358e47ee79c883f03180d474c15dbaf28a88492c8e53aefc0d305872edd27db0b4468da13e6f0337988f58d2ee35fd797
-
Filesize
91KB
MD55c5bef05b6f3806106f8f3ce13401cc1
SHA16005fbe17f6e917ac45317552409d7a60976db14
SHA256f2f3ae8ca06f5cf320ca1d234a623bf55cf2b84c1d6dea3d85d5392e29aaf437
SHA51297933227b6002127385ace025f85a26358e47ee79c883f03180d474c15dbaf28a88492c8e53aefc0d305872edd27db0b4468da13e6f0337988f58d2ee35fd797