Overview
overview
6Static
static
3Nezur (1).zip
windows7-x64
1Nezur (1).zip
windows10-2004-x64
1Nezur.exe
windows7-x64
1Nezur.exe
windows10-2004-x64
1README.txt
windows7-x64
1README.txt
windows10-2004-x64
1auto_load.txt
windows7-x64
1auto_load.txt
windows10-2004-x64
1configs/autosave.cfg
windows7-x64
3configs/autosave.cfg
windows10-2004-x64
3lua51.dll
windows7-x64
3lua51.dll
windows10-2004-x64
3start.bat
windows7-x64
6start.bat
windows10-2004-x64
6Analysis
-
max time kernel
135s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
13/02/2024, 22:25
Static task
static1
Behavioral task
behavioral1
Sample
Nezur (1).zip
Resource
win7-20231129-en
windows7-x64
Behavioral task
behavioral2
Sample
Nezur (1).zip
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
Nezur.exe
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral4
Sample
Nezur.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
README.txt
Resource
win7-20231129-en
windows7-x64
Behavioral task
behavioral6
Sample
README.txt
Resource
win10v2004-20231222-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
auto_load.txt
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral8
Sample
auto_load.txt
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
configs/autosave.cfg
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral10
Sample
configs/autosave.cfg
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
lua51.dll
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral12
Sample
lua51.dll
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
start.bat
Resource
win7-20231215-en
windows7-x64
Behavioral task
behavioral14
Sample
start.bat
Resource
win10v2004-20231215-en
windows10-2004-x64
General
-
Target
lua51.dll
-
Size
592KB
-
MD5
3dff7448b43fcfb4dc65e0040b0ffb88
-
SHA1
583cdab08519d99f49234965ffd07688ccf52c56
-
SHA256
ff976f6e965e3793e278fa9bf5e80b9b226a0b3932b9da764bffc8e41e6cdb60
-
SHA512
cdcbe0ec9ddd6b605161e3c30ce3de721f1333fce85985e88928086b1578435dc67373c3dc3492ed8eae0d63987cac633aa4099b205989dcbb91cbbfc8f6a394
-
SSDEEP
12288:rs7/mj/73RaLHIW5BmUeUhoE4RgiF1q1bPIBKsg4Db0S:rc/u/7IoRnUKfq1Dl4DY
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 2668 3008 WerFault.exe 28 -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3004 taskmgr.exe -
Suspicious use of FindShellTrayWindow 40 IoCs
pid Process 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe -
Suspicious use of SendNotifyMessage 40 IoCs
pid Process 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe 3004 taskmgr.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2024 wrote to memory of 3008 2024 rundll32.exe 28 PID 2024 wrote to memory of 3008 2024 rundll32.exe 28 PID 2024 wrote to memory of 3008 2024 rundll32.exe 28 PID 2024 wrote to memory of 3008 2024 rundll32.exe 28 PID 2024 wrote to memory of 3008 2024 rundll32.exe 28 PID 2024 wrote to memory of 3008 2024 rundll32.exe 28 PID 2024 wrote to memory of 3008 2024 rundll32.exe 28 PID 3008 wrote to memory of 2668 3008 rundll32.exe 29 PID 3008 wrote to memory of 2668 3008 rundll32.exe 29 PID 3008 wrote to memory of 2668 3008 rundll32.exe 29 PID 3008 wrote to memory of 2668 3008 rundll32.exe 29
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\lua51.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\lua51.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:3008 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3008 -s 2243⤵
- Program crash
PID:2668
-
-
-
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3004