Analysis
-
max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
12-09-2024 19:46
Static task
static1
Behavioral task
behavioral1
Sample
vfs.msi
Resource
win7-20240903-en
windows7-x64
15 signatures
150 seconds
Behavioral task
behavioral2
Sample
vfs.msi
Resource
win10v2004-20240802-en
windows10-2004-x64
15 signatures
150 seconds
General
-
Target
vfs.msi
-
Size
1.9MB
-
MD5
c017277279dada1b9653bc6838019952
-
SHA1
4d66580dade368ea823c2afc602ad3686c20d4d1
-
SHA256
f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c
-
SHA512
cd9fea4bfa73987fb95e4e15ee6fa5c489842b79f8a497ea7dd65ec355db9df6d4af786612e6d9f43e7293723a91841465368728fb1b5361716a9297008adfa2
-
SSDEEP
49152:QGN3YhW8zBQSc0ZnSKBZKumZr7ANpTdzZfVSlaMBOno:3YY0Zn3K/ANPzbSlaBno
Malware Config
Signatures
-
Detects Latrodectus 3 IoCs
Detects Latrodectus v1.4.
Processes:
resource yara_rule behavioral1/memory/324-44-0x00000000001D0000-0x00000000001E6000-memory.dmp family_latrodectus_1_4 behavioral1/memory/1204-53-0x0000000001D20000-0x0000000001D36000-memory.dmp family_latrodectus_1_4 behavioral1/memory/1204-54-0x0000000001D20000-0x0000000001D36000-memory.dmp family_latrodectus_1_4 -
Latrodectus loader
Latrodectus is a loader written in C++.
-
Enumerates connected drives 3 TTPs 46 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) \??\S: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\V: 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) \??\Y: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\R: 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) \??\M: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\K: msiexec.exe -
Drops file in Windows directory 13 IoCs
Processes:
msiexec.exeDrvInst.exedescription ioc Process File opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\f76d877.ipi msiexec.exe 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\Installer\f76d874.msi msiexec.exe File opened for modification C:\Windows\Installer\MSID951.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSIDAB8.tmp msiexec.exe File opened for modification C:\Windows\INF\setupapi.dev.log DrvInst.exe File created C:\Windows\Installer\f76d874.msi msiexec.exe File opened for modification C:\Windows\Installer\MSID8A3.tmp msiexec.exe File opened for modification C:\Windows\Installer\MSID921.tmp msiexec.exe File created C:\Windows\Installer\f76d877.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSIDB37.tmp msiexec.exe -
Executes dropped EXE 1 IoCs
Processes:
MSIDB37.tmppid Process 1200 MSIDB37.tmp -
Loads dropped DLL 11 IoCs
Processes:
MsiExec.exerundll32.exerundll32.exepid Process 2456 MsiExec.exe 2456 MsiExec.exe 2456 MsiExec.exe 324 rundll32.exe 324 rundll32.exe 324 rundll32.exe 324 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe -
Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
-
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
MsiExec.exeMSIDB37.tmpdescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MsiExec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSIDB37.tmp -
Modifies data under HKEY_USERS 43 IoCs
Processes:
DrvInst.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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\Microsoft\SystemCertificates\CA\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\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\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\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\Policies\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\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\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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\Policies\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 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\trust\Certificates DrvInst.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
msiexec.exepid Process 2388 msiexec.exe 2388 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
msiexec.exemsiexec.exevssvc.exeDrvInst.exedescription pid Process Token: SeShutdownPrivilege 3048 msiexec.exe Token: SeIncreaseQuotaPrivilege 3048 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeTakeOwnershipPrivilege 2388 msiexec.exe Token: SeSecurityPrivilege 2388 msiexec.exe Token: SeCreateTokenPrivilege 3048 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 3048 msiexec.exe Token: SeLockMemoryPrivilege 3048 msiexec.exe Token: SeIncreaseQuotaPrivilege 3048 msiexec.exe Token: SeMachineAccountPrivilege 3048 msiexec.exe Token: SeTcbPrivilege 3048 msiexec.exe Token: SeSecurityPrivilege 3048 msiexec.exe Token: SeTakeOwnershipPrivilege 3048 msiexec.exe Token: SeLoadDriverPrivilege 3048 msiexec.exe Token: SeSystemProfilePrivilege 3048 msiexec.exe Token: SeSystemtimePrivilege 3048 msiexec.exe Token: SeProfSingleProcessPrivilege 3048 msiexec.exe Token: SeIncBasePriorityPrivilege 3048 msiexec.exe Token: SeCreatePagefilePrivilege 3048 msiexec.exe Token: SeCreatePermanentPrivilege 3048 msiexec.exe Token: SeBackupPrivilege 3048 msiexec.exe Token: SeRestorePrivilege 3048 msiexec.exe Token: SeShutdownPrivilege 3048 msiexec.exe Token: SeDebugPrivilege 3048 msiexec.exe Token: SeAuditPrivilege 3048 msiexec.exe Token: SeSystemEnvironmentPrivilege 3048 msiexec.exe Token: SeChangeNotifyPrivilege 3048 msiexec.exe Token: SeRemoteShutdownPrivilege 3048 msiexec.exe Token: SeUndockPrivilege 3048 msiexec.exe Token: SeSyncAgentPrivilege 3048 msiexec.exe Token: SeEnableDelegationPrivilege 3048 msiexec.exe Token: SeManageVolumePrivilege 3048 msiexec.exe Token: SeImpersonatePrivilege 3048 msiexec.exe Token: SeCreateGlobalPrivilege 3048 msiexec.exe Token: SeBackupPrivilege 2616 vssvc.exe Token: SeRestorePrivilege 2616 vssvc.exe Token: SeAuditPrivilege 2616 vssvc.exe Token: SeBackupPrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2696 DrvInst.exe Token: SeRestorePrivilege 2696 DrvInst.exe Token: SeRestorePrivilege 2696 DrvInst.exe Token: SeRestorePrivilege 2696 DrvInst.exe Token: SeRestorePrivilege 2696 DrvInst.exe Token: SeRestorePrivilege 2696 DrvInst.exe Token: SeRestorePrivilege 2696 DrvInst.exe Token: SeLoadDriverPrivilege 2696 DrvInst.exe Token: SeLoadDriverPrivilege 2696 DrvInst.exe Token: SeLoadDriverPrivilege 2696 DrvInst.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeTakeOwnershipPrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeTakeOwnershipPrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeTakeOwnershipPrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeTakeOwnershipPrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeTakeOwnershipPrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeTakeOwnershipPrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe Token: SeTakeOwnershipPrivilege 2388 msiexec.exe Token: SeRestorePrivilege 2388 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
msiexec.exepid Process 3048 msiexec.exe 3048 msiexec.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
msiexec.exerundll32.exedescription pid Process procid_target PID 2388 wrote to memory of 2456 2388 msiexec.exe 35 PID 2388 wrote to memory of 2456 2388 msiexec.exe 35 PID 2388 wrote to memory of 2456 2388 msiexec.exe 35 PID 2388 wrote to memory of 2456 2388 msiexec.exe 35 PID 2388 wrote to memory of 2456 2388 msiexec.exe 35 PID 2388 wrote to memory of 2456 2388 msiexec.exe 35 PID 2388 wrote to memory of 2456 2388 msiexec.exe 35 PID 2388 wrote to memory of 1200 2388 msiexec.exe 36 PID 2388 wrote to memory of 1200 2388 msiexec.exe 36 PID 2388 wrote to memory of 1200 2388 msiexec.exe 36 PID 2388 wrote to memory of 1200 2388 msiexec.exe 36 PID 2388 wrote to memory of 1200 2388 msiexec.exe 36 PID 2388 wrote to memory of 1200 2388 msiexec.exe 36 PID 2388 wrote to memory of 1200 2388 msiexec.exe 36 PID 324 wrote to memory of 1204 324 rundll32.exe 38 PID 324 wrote to memory of 1204 324 rundll32.exe 38 PID 324 wrote to memory of 1204 324 rundll32.exe 38 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\vfs.msi1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3048
-
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:2388 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 86FC120F810EE91554743315AA7857032⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2456
-
-
C:\Windows\Installer\MSIDB37.tmp"C:\Windows\Installer\MSIDB37.tmp" /DontWait C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\true.dll, NvPluginGetInfo2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1200
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2616
-
C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "000000000000031C" "00000000000005D4"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2696
-
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\true.dll, NvPluginGetInfo1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:324 -
C:\Windows\System32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_c27e3a38.dll", NvPluginGetInfo2⤵
- Loads dropped DLL
PID:1204
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD571c0c1126f24fd39c1a2037a6aad8b0a
SHA14ee5314272ea626c2ea63da06c22546a2cbb2c34
SHA256e328ed08479a7454c50950c8df5a083cb2b2aa2a12c3bb49faf5eaa860030fdc
SHA512072159a95b2fea47afdc52b44c07687e4a0d32d31b3d36c13f1f116e2db1858a225e74e30888388d286837dfaaac2e2aaf1e3f1c09c0a13daad0b0391564f1d6
-
Filesize
1.8MB
MD56dc0d350d735fd1acc8219cfa5d02b9b
SHA17ba0708a4404715fb21a23acfbd88a25b7245ef1
SHA2562333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061
SHA51299c9b6310363ce3a7d9ff680c4a0ae976553fc4789b12f9b60d9f629608d90cf4d64b4c8a037264f8aaa48fba69ae397236ef4c32c2eb6779fb5d9e0b3b0d52f
-
Filesize
436KB
MD5475d20c0ea477a35660e3f67ecf0a1df
SHA167340739f51e1134ae8f0ffc5ae9dd710e8e3a08
SHA256426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
SHA51299525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e
-
Filesize
389KB
MD5b9545ed17695a32face8c3408a6a3553
SHA1f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83
SHA2561e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a
SHA512f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04