4e187aa04e5e6bc6c16c492d318b5cf916320d8a3e549c8a7f7dfae1f12f751c

Analysis

max time kernel
146s
max time network
154s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
03-09-2024 17:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

UltimMC/libLauncher_nbt++.dll
Size

342KB
MD5

56e841daa46b9299d41652aeee17c25d
SHA1

b133c04f21d0dd2db3c10f84de66ac2749b7ee50
SHA256

a9c388c578f0cc3c0942f6e16752a781d81b1c3f963b838c25d9dcd3fa9bc709
SHA512

8a143472947d2a7df9468b64ae3dffdb396ad5098bb6dfa606670dfcadc4929ed81fa8700fcea54af3a2419bffe8fcf802dfa090632e38fb26e60756b47a3d6f
SSDEEP

6144:0IUgcH0hz6J8UOxWbc5sCDPB/Qll7a56FBTYb4Y7pHhW6dJjgGoo5Nheff1ByLca:0IUgcH0h1V/Qll7W

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2332 2000 WerFault.exe rundll32.exe
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.
discovery

System Language Discovery
T1614.001

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

pid	pid_target	process	target process
2332	2000	WerFault.exe	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1632 wrote to memory of 2000	1632	rundll32.exe	rundll32.exe
PID 1632 wrote to memory of 2000	1632	rundll32.exe	rundll32.exe
PID 1632 wrote to memory of 2000	1632	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\libLauncher_nbt++.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1632

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\libLauncher_nbt++.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 480
3⤵
- Program crash
PID:2332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2000 -ip 2000
1⤵
PID:4636

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2000-1-0x0000000061741000-0x0000000061757000-memory.dmp

Filesize
88KB

Download
memory/2000-0-0x0000000061740000-0x0000000061771000-memory.dmp

Filesize
196KB

Download
memory/2000-2-0x0000000061740000-0x0000000061771000-memory.dmp

Filesize
196KB

Download
memory/2000-6-0x0000000064940000-0x0000000064954000-memory.dmp

Filesize
80KB

Download
memory/2000-5-0x000000006FC40000-0x000000006FD41000-memory.dmp

Filesize
1.0MB

Download
memory/2000-4-0x0000000068AC0000-0x0000000068ACC000-memory.dmp

Filesize
48KB

Download
memory/2000-3-0x000000006E940000-0x000000006E964000-memory.dmp

Filesize
144KB

Download