Overview
overview
7Static
static
7- MuServer...CS.exe
windows7-x64
1- MuServer...CS.exe
windows10-2004-x64
1- MuServer...er.exe
windows7-x64
1- MuServer...er.exe
windows10-2004-x64
1- MuServer...er.exe
windows7-x64
1- MuServer...er.exe
windows10-2004-x64
1- MuServer...UM.dll
windows7-x64
3- MuServer...UM.dll
windows10-2004-x64
3- MuServer...er.exe
windows7-x64
1- MuServer...er.exe
windows10-2004-x64
1- MuServer...er.exe
windows7-x64
1- MuServer...er.exe
windows10-2004-x64
1- MuServer...UM.dll
windows7-x64
3- MuServer...UM.dll
windows10-2004-x64
3- MuServer...db.exe
windows7-x64
1- MuServer...db.exe
windows10-2004-x64
1- MuServer...oc.dll
windows7-x64
3- MuServer...oc.dll
windows10-2004-x64
3- MuServer...ck.dll
windows7-x64
3- MuServer...ck.dll
windows10-2004-x64
3- MuServer...er.exe
windows7-x64
1- MuServer...er.exe
windows10-2004-x64
1- MuServer...Lf.dll
windows7-x64
1- MuServer...Lf.dll
windows10-2004-x64
3- MuServer...sg.dll
windows7-x64
3- MuServer...sg.dll
windows10-2004-x64
3- MuServer...er.exe
windows7-x64
1- MuServer...er.exe
windows10-2004-x64
1- MuServer...ER.exe
windows7-x64
1- MuServer...ER.exe
windows10-2004-x64
1- MuServer...UP.exe
windows7-x64
7- MuServer...UP.exe
windows10-2004-x64
7Analysis
-
max time kernel
153s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04/01/2024, 04:33
Behavioral task
behavioral1
Sample
- MuServer97+99 Viciados/CS/CS.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
- MuServer97+99 Viciados/CS/CS.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
- MuServer97+99 Viciados/DataServer1/Dataserver.exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
- MuServer97+99 Viciados/DataServer1/Dataserver.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
- MuServer97+99 Viciados/DataServer1/WZ_AutoUpdater.exe
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
- MuServer97+99 Viciados/DataServer1/WZ_AutoUpdater.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
- MuServer97+99 Viciados/DataServer1/WZ_UM.dll
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
- MuServer97+99 Viciados/DataServer1/WZ_UM.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral9
Sample
- MuServer97+99 Viciados/DataServer2/Dataserver.exe
Resource
win7-20231129-en
Behavioral task
behavioral10
Sample
- MuServer97+99 Viciados/DataServer2/Dataserver.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
- MuServer97+99 Viciados/DataServer2/WZ_AutoUpdater.exe
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
- MuServer97+99 Viciados/DataServer2/WZ_AutoUpdater.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral13
Sample
- MuServer97+99 Viciados/DataServer2/WZ_UM.dll
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
- MuServer97+99 Viciados/DataServer2/WZ_UM.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral15
Sample
- MuServer97+99 Viciados/ExDB/Exdb.exe
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
- MuServer97+99 Viciados/ExDB/Exdb.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral17
Sample
- MuServer97+99 Viciados/ExDB/LogProc.dll
Resource
win7-20231215-en
Behavioral task
behavioral18
Sample
- MuServer97+99 Viciados/ExDB/LogProc.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral19
Sample
- MuServer97+99 Viciados/ExDB/WZSock.dll
Resource
win7-20231215-en
Behavioral task
behavioral20
Sample
- MuServer97+99 Viciados/ExDB/WZSock.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral21
Sample
- MuServer97+99 Viciados/GameServer/GameServer.exe
Resource
win7-20231215-en
Behavioral task
behavioral22
Sample
- MuServer97+99 Viciados/GameServer/GameServer.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral23
Sample
- MuServer97+99 Viciados/GameServer/WoLf.dll
Resource
win7-20231215-en
Behavioral task
behavioral24
Sample
- MuServer97+99 Viciados/GameServer/WoLf.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral25
Sample
- MuServer97+99 Viciados/GameServer/mumsg.dll
Resource
win7-20231215-en
Behavioral task
behavioral26
Sample
- MuServer97+99 Viciados/GameServer/mumsg.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral27
Sample
- MuServer97+99 Viciados/JoinServer/JoinServer.exe
Resource
win7-20231215-en
Behavioral task
behavioral28
Sample
- MuServer97+99 Viciados/JoinServer/JoinServer.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral29
Sample
- MuServer97+99 Viciados/MU2003_EVENT_SERVER/WZ_MU2003_EVENT_SERVER.exe
Resource
win7-20231129-en
Behavioral task
behavioral30
Sample
- MuServer97+99 Viciados/MU2003_EVENT_SERVER/WZ_MU2003_EVENT_SERVER.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral31
Sample
- MuServer97+99 Viciados/MUServerStartUP.exe
Resource
win7-20231215-en
Behavioral task
behavioral32
Sample
- MuServer97+99 Viciados/MUServerStartUP.exe
Resource
win10v2004-20231215-en
General
-
Target
- MuServer97+99 Viciados/GameServer/mumsg.dll
-
Size
48KB
-
MD5
536cb9f2bd31bb423c80fbd73164aaf6
-
SHA1
ad2593d4aa3311f3c5a2a00694880920d3de9133
-
SHA256
a12030781117681ef10cb67e3d409936d7620aba3751df8ac9ea0506f0da9704
-
SHA512
a5c2cca271e4b4a91fdc7138cddf23ec8bb03a5d73d94e545505d68e25f5feb3d9ca6cef5661d61297d69cc1da0037cfeaecd0839680be8836738627cc5b1a6f
-
SSDEEP
768:l9VFIOTpYWNoCYYygQmmzsu4SdppGsFPKoaSai:l9LIOTpkgQmhYpQsIoaSa
Malware Config
Signatures
-
Program crash 2 IoCs
pid pid_target Process procid_target 2488 228 WerFault.exe 90 4752 228 WerFault.exe 90 -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4432 wrote to memory of 228 4432 rundll32.exe 90 PID 4432 wrote to memory of 228 4432 rundll32.exe 90 PID 4432 wrote to memory of 228 4432 rundll32.exe 90 PID 228 wrote to memory of 2488 228 rundll32.exe 98 PID 228 wrote to memory of 2488 228 rundll32.exe 98 PID 228 wrote to memory of 2488 228 rundll32.exe 98
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\- MuServer97+99 Viciados\GameServer\mumsg.dll",#11⤵
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\- MuServer97+99 Viciados\GameServer\mumsg.dll",#12⤵
- Suspicious use of WriteProcessMemory
PID:228 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 228 -s 6003⤵
- Program crash
PID:2488
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 228 -s 6003⤵
- Program crash
PID:4752
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 228 -ip 2281⤵PID:2464