100b85a1e544ca868a5498cc88fb5d5f5775fa70bb336c87efa07528bc313271

Analysis

max time kernel
94s
max time network
108s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
21-08-2024 19:11

Target

MultiMC/libLauncher_nbt++.dll
Size

342KB
MD5

a8fd1d3ca86576af970775e814578dc0
SHA1

b600843f2c8ef110fcbb5dd5f57211bbe189056d
SHA256

0de8b725ff2074290b6c9f5f38a4650b84eaf299456c2dc5cd9e71b1e1962824
SHA512

48042b9b3f5e6471261f663351b86d5c231cc2158f71cb2cdc3bdc2f667a90175d908b7325b8ab156366eddf037baf788abd6555825a04b90f8f85cb44386cb8
SSDEEP

6144:eIUgcH0hzdJ8UOxWbc5sCDPB/Qll7a56FBTYb4Y7pHhW6dJjgGoo5Nheff1ByLca:eIUgcH0hGV/Qll7W

Score

3^/10

discovery

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4584 4936 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
4584	4936	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 860 wrote to memory of 4936	860	rundll32.exe	rundll32.exe
PID 860 wrote to memory of 4936	860	rundll32.exe	rundll32.exe
PID 860 wrote to memory of 4936	860	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\MultiMC\libLauncher_nbt++.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:860

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\MultiMC\libLauncher_nbt++.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 480
3⤵
- Program crash
PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4936 -ip 4936
1⤵
PID:4952

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/4936-1-0x0000000061741000-0x0000000061757000-memory.dmp

Filesize
88KB

Download
memory/4936-0-0x0000000061740000-0x0000000061771000-memory.dmp

Filesize
196KB

Download
memory/4936-2-0x0000000061740000-0x0000000061771000-memory.dmp

Filesize
196KB

Download
memory/4936-4-0x000000006E940000-0x000000006E964000-memory.dmp

Filesize
144KB

Download
memory/4936-6-0x0000000064940000-0x0000000064954000-memory.dmp

Filesize
80KB

Download
memory/4936-3-0x0000000068AC0000-0x0000000068ACC000-memory.dmp

Filesize
48KB

Download
memory/4936-5-0x000000006FC40000-0x000000006FD41000-memory.dmp

Filesize
1.0MB

Download