Overview
overview
10Static
static
5OP-5.zip
windows10-2004-x64
10OP-5.zip
windows11-ltsc_2024-x64
10OP-5/NO-5.exe
windows10-2004-x64
10OP-5/NO-5.exe
windows11-ltsc_2024-x64
10OP-5/d3d9core.png
windows10-2004-x64
1OP-5/d3d9core.png
windows11-ltsc_2024-x64
8OP-5/libcef.dll
windows10-2004-x64
3OP-5/libcef.dll
windows11-ltsc_2024-x64
3Analysis
- max time kernel
899s - max time network
483s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
26/10/2026, 14:17
Static task
static1
Behavioral task
behavioral1
Sample
OP-5.zip
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
OP-5.zip
Resource
win11ltsc2024-20260911-en
Behavioral task
behavioral3
Sample
OP-5/NO-5.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral4
Sample
OP-5/NO-5.exe
Resource
win11ltsc2024-20260911-en
Behavioral task
behavioral5
Sample
OP-5/d3d9core.png
Resource
win10v2004-20260911-en
Behavioral task
behavioral6
Sample
OP-5/d3d9core.png
Resource
win11ltsc2024-20260911-en
Behavioral task
behavioral7
Sample
OP-5/libcef.dll
Resource
win10v2004-20260911-en
Behavioral task
behavioral8
Sample
OP-5/libcef.dll
Resource
win11ltsc2024-20260911-en
General
- Target OP-5/libcef.dll
- Size 11.6MB
- Sample261026-rlxcmaxsg1
- SHA256 f8515b0e2a68b677a105ed438062223ac91e61c7796bd6cd83089e1b0591016b
- MD5 122ca07761bd2aadc59f3f344e95aabf
- SHA1 fb6fe73aeff1377b6c1f0b5819f93821be1e207f
- SHA512 d8c33aeb72e6010fa2a67ab69c9ca2b4f2c6225514d53278338c3ac1f74481b89ca56ff8ab1489f24e0e22e53fb73735c4ddc310180c83c7585660e5967f6f20
- SSDEEP 49152:oWQQFCSewjuBfaBpYc47VNR5xBJB/mPLNjUISv8TrVoVAvJE6b8cr2piTZei7aTn:95DyBSBCDVNRoTNoyvhrzav1F3V
- TLSH T1D0C649F2654B73ACC29BCAF3A02C0444364699D112E949F3E5C47A74AFEFD99E214336
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- System Location Discovery: System Language Discovery 1 TTPs 1 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 rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1536 wrote to memory of 3516 1536 rundll32.exe 90
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\OP-5\libcef.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1536 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\OP-5\libcef.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:3516
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:5984
-
C:\Windows\System32\SecurityHealthHost.exe\\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding1⤵PID:3768