Analysis
-
max time kernel
61s -
max time network
17s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
30-08-2024 07:37
Static task
static1
Behavioral task
behavioral1
Sample
CN.msi
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
CN.msi
Resource
win10v2004-20240802-en
General
-
Target
CN.msi
-
Size
1.6MB
-
MD5
329259260ebe046b0e80bec91f632ba0
-
SHA1
db1184c14af32cf859d7f089d1dacc685257cc11
-
SHA256
334c3f529b1c580ea83e2ea1e85b7a937dcceb3dd3b2a533afb936f53100c222
-
SHA512
cfa0235623ec962266dbe9bcba5eac4535eff365aa784e6cf4d2a877aa6fedcc0801e5ba751b35ad176997337b72e4141f42ee07faf1017abcfda42b3228b2a4
-
SSDEEP
49152:L/c3YuW8zBQSc0ZnSKYZKumZr7AVXP4XnEPvw:CY90ZniK/AVXP
Malware Config
Signatures
-
Detects Latrodectus 1 IoCs
Detects Latrodectus v1.4.
resource yara_rule behavioral1/memory/1084-51-0x00000000001B0000-0x00000000001C6000-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.
description ioc Process File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\V: msiexec.exe -
Drops file in Windows directory 11 IoCs
description ioc Process File created C:\Windows\Installer\f77ee17.ipi msiexec.exe File opened for modification C:\Windows\Installer\MSIEF6F.tmp msiexec.exe File opened for modification C:\Windows\Installer\f77ee17.ipi msiexec.exe File opened for modification C:\Windows\INF\setupapi.ev1 DrvInst.exe File created C:\Windows\Installer\f77ee16.msi msiexec.exe File opened for modification C:\Windows\Installer\f77ee16.msi msiexec.exe File opened for modification C:\Windows\Installer\MSIEE64.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 opened for modification C:\Windows\Installer\ msiexec.exe File opened for modification C:\Windows\Installer\MSIEF9F.tmp msiexec.exe -
Executes dropped EXE 1 IoCs
pid Process 2860 MSIEF9F.tmp -
Loads dropped DLL 14 IoCs
pid Process 2316 MsiExec.exe 2316 MsiExec.exe 2316 MsiExec.exe 2316 MsiExec.exe 2316 MsiExec.exe 1224 MsiExec.exe 1536 rundll32.exe 1536 rundll32.exe 1536 rundll32.exe 1536 rundll32.exe 1084 rundll32.exe 1084 rundll32.exe 1084 rundll32.exe 1084 rundll32.exe -
Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
pid Process 3056 msiexec.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MsiExec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MsiExec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSIEF9F.tmp -
Modifies data under HKEY_USERS 43 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs 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\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\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 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\trust\CRLs 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\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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\Disallowed DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs 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\TrustedPeople\CRLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\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\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA 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\TrustedPeople DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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\TrustedPeople\Certificates DrvInst.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates 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\Disallowed\Certificates DrvInst.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2856 msiexec.exe 2856 msiexec.exe 2860 MSIEF9F.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 3056 msiexec.exe Token: SeIncreaseQuotaPrivilege 3056 msiexec.exe Token: SeRestorePrivilege 2856 msiexec.exe Token: SeTakeOwnershipPrivilege 2856 msiexec.exe Token: SeSecurityPrivilege 2856 msiexec.exe Token: SeCreateTokenPrivilege 3056 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 3056 msiexec.exe Token: SeLockMemoryPrivilege 3056 msiexec.exe Token: SeIncreaseQuotaPrivilege 3056 msiexec.exe Token: SeMachineAccountPrivilege 3056 msiexec.exe Token: SeTcbPrivilege 3056 msiexec.exe Token: SeSecurityPrivilege 3056 msiexec.exe Token: SeTakeOwnershipPrivilege 3056 msiexec.exe Token: SeLoadDriverPrivilege 3056 msiexec.exe Token: SeSystemProfilePrivilege 3056 msiexec.exe Token: SeSystemtimePrivilege 3056 msiexec.exe Token: SeProfSingleProcessPrivilege 3056 msiexec.exe Token: SeIncBasePriorityPrivilege 3056 msiexec.exe Token: SeCreatePagefilePrivilege 3056 msiexec.exe Token: SeCreatePermanentPrivilege 3056 msiexec.exe Token: SeBackupPrivilege 3056 msiexec.exe Token: SeRestorePrivilege 3056 msiexec.exe Token: SeShutdownPrivilege 3056 msiexec.exe Token: SeDebugPrivilege 3056 msiexec.exe Token: SeAuditPrivilege 3056 msiexec.exe Token: SeSystemEnvironmentPrivilege 3056 msiexec.exe Token: SeChangeNotifyPrivilege 3056 msiexec.exe Token: SeRemoteShutdownPrivilege 3056 msiexec.exe Token: SeUndockPrivilege 3056 msiexec.exe Token: SeSyncAgentPrivilege 3056 msiexec.exe Token: SeEnableDelegationPrivilege 3056 msiexec.exe Token: SeManageVolumePrivilege 3056 msiexec.exe Token: SeImpersonatePrivilege 3056 msiexec.exe Token: SeCreateGlobalPrivilege 3056 msiexec.exe Token: SeCreateTokenPrivilege 3056 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 3056 msiexec.exe Token: SeLockMemoryPrivilege 3056 msiexec.exe Token: SeIncreaseQuotaPrivilege 3056 msiexec.exe Token: SeMachineAccountPrivilege 3056 msiexec.exe Token: SeTcbPrivilege 3056 msiexec.exe Token: SeSecurityPrivilege 3056 msiexec.exe Token: SeTakeOwnershipPrivilege 3056 msiexec.exe Token: SeLoadDriverPrivilege 3056 msiexec.exe Token: SeSystemProfilePrivilege 3056 msiexec.exe Token: SeSystemtimePrivilege 3056 msiexec.exe Token: SeProfSingleProcessPrivilege 3056 msiexec.exe Token: SeIncBasePriorityPrivilege 3056 msiexec.exe Token: SeCreatePagefilePrivilege 3056 msiexec.exe Token: SeCreatePermanentPrivilege 3056 msiexec.exe Token: SeBackupPrivilege 3056 msiexec.exe Token: SeRestorePrivilege 3056 msiexec.exe Token: SeShutdownPrivilege 3056 msiexec.exe Token: SeDebugPrivilege 3056 msiexec.exe Token: SeAuditPrivilege 3056 msiexec.exe Token: SeSystemEnvironmentPrivilege 3056 msiexec.exe Token: SeChangeNotifyPrivilege 3056 msiexec.exe Token: SeRemoteShutdownPrivilege 3056 msiexec.exe Token: SeUndockPrivilege 3056 msiexec.exe Token: SeSyncAgentPrivilege 3056 msiexec.exe Token: SeEnableDelegationPrivilege 3056 msiexec.exe Token: SeManageVolumePrivilege 3056 msiexec.exe Token: SeImpersonatePrivilege 3056 msiexec.exe Token: SeCreateGlobalPrivilege 3056 msiexec.exe Token: SeCreateTokenPrivilege 3056 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3056 msiexec.exe 3056 msiexec.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2856 wrote to memory of 2316 2856 msiexec.exe 31 PID 2856 wrote to memory of 2316 2856 msiexec.exe 31 PID 2856 wrote to memory of 2316 2856 msiexec.exe 31 PID 2856 wrote to memory of 2316 2856 msiexec.exe 31 PID 2856 wrote to memory of 2316 2856 msiexec.exe 31 PID 2856 wrote to memory of 2316 2856 msiexec.exe 31 PID 2856 wrote to memory of 2316 2856 msiexec.exe 31 PID 2856 wrote to memory of 1224 2856 msiexec.exe 35 PID 2856 wrote to memory of 1224 2856 msiexec.exe 35 PID 2856 wrote to memory of 1224 2856 msiexec.exe 35 PID 2856 wrote to memory of 1224 2856 msiexec.exe 35 PID 2856 wrote to memory of 1224 2856 msiexec.exe 35 PID 2856 wrote to memory of 1224 2856 msiexec.exe 35 PID 2856 wrote to memory of 1224 2856 msiexec.exe 35 PID 2856 wrote to memory of 2860 2856 msiexec.exe 36 PID 2856 wrote to memory of 2860 2856 msiexec.exe 36 PID 2856 wrote to memory of 2860 2856 msiexec.exe 36 PID 2856 wrote to memory of 2860 2856 msiexec.exe 36 PID 2856 wrote to memory of 2860 2856 msiexec.exe 36 PID 2856 wrote to memory of 2860 2856 msiexec.exe 36 PID 2856 wrote to memory of 2860 2856 msiexec.exe 36 PID 1536 wrote to memory of 1084 1536 rundll32.exe 38 PID 1536 wrote to memory of 1084 1536 rundll32.exe 38 PID 1536 wrote to memory of 1084 1536 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\CN.msi1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3056
-
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:2856 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding 3147DC633315D489D9A1AADFAD5EB6A5 C2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2316
-
-
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding F8C443A7748176753285208FBED6B2C02⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:1224
-
-
C:\Windows\Installer\MSIEF9F.tmp"C:\Windows\Installer\MSIEF9F.tmp" C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\tz6.dll, NvCreateMPEG4MuxSink2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2860
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵PID:2312
-
C:\Windows\system32\DrvInst.exeDrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003A4" "00000000000003C4"1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:2264
-
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\tz6.dll, NvCreateMPEG4MuxSink1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1536 -
C:\Windows\System32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_3a74d336.dll", NvCreateMPEG4MuxSink2⤵
- Loads dropped DLL
PID:1084
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
436KB
MD5475d20c0ea477a35660e3f67ecf0a1df
SHA167340739f51e1134ae8f0ffc5ae9dd710e8e3a08
SHA256426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
SHA51299525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e
-
Filesize
1.1MB
MD511bba295ee381161292c384c2eca7a0c
SHA12ce64388e396af0c1d96c8544fca6cfee0644f54
SHA2564dabba4dbabba2b5201fca7e525859946ad860e2693574dc2a6d18348b0c8b95
SHA51242d926b2a6a4dc99f264a7a38ab951e55f5b126313d8f3250698aca65aea6330030940c91179b29b563c625ddd8f2672ddb7ec3a4f440ffe32dcd3d6cb982f55
-
Filesize
389KB
MD5b9545ed17695a32face8c3408a6a3553
SHA1f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83
SHA2561e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a
SHA512f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04