4e187aa04e5e6bc6c16c492d318b5cf916320d8a3e549c8a7f7dfae1f12f751c

Analysis

max time kernel
422s
max time network
1144s
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 17:07

Target

UltimMC/libLauncher_rainbow.dll
Size

67KB
MD5

8bacee60fbf39997eb56bb4c2994f65b
SHA1

f604b07e35891b8d46f5d27c3b3232ab4711392e
SHA256

b14e80c81dd81f5f5c5d4a3b4f4df3ce36e79a107ed23e25b74ad62836ffefa8
SHA512

7c936c19858bffe1cffc65e9ec31553f623535527d8c4a93c94ff7ad791251e63e2fc7e23827fd91e0ce2412a731b5af028910aba6c948c8468858fbb4abd80a
SSDEEP

768:qEg24DKoyYH150BEexXfz2xGppy/a2MaOtRd9P9mg8rO71:qFVD11ij1oDM5hP7x

Score

3^/10

discovery

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2860 1148 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
2860	1148	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 1800 wrote to memory of 1148	1800	rundll32.exe	rundll32.exe
PID 1800 wrote to memory of 1148	1800	rundll32.exe	rundll32.exe
PID 1800 wrote to memory of 1148	1800	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\libLauncher_rainbow.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1800

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\libLauncher_rainbow.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:1148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1148 -s 628
3⤵
- Program crash
PID:2860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1148 -ip 1148
1⤵
PID:736

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/1148-0-0x0000000002350000-0x000000000287F000-memory.dmp

Filesize
5.2MB

Download
memory/1148-3-0x0000000002350000-0x000000000287F000-memory.dmp

Filesize
5.2MB

Download
memory/1148-5-0x0000000002351000-0x00000000025F9000-memory.dmp

Filesize
2.7MB

Download
memory/1148-6-0x0000000002350000-0x000000000287F000-memory.dmp

Filesize
5.2MB

Download
memory/1148-9-0x000000006E940000-0x000000006E964000-memory.dmp

Filesize
144KB

Download
memory/1148-11-0x0000000064940000-0x0000000064954000-memory.dmp

Filesize
80KB

Download
memory/1148-12-0x0000000061940000-0x0000000061EB5000-memory.dmp

Filesize
5.5MB

Download
memory/1148-10-0x000000006FC40000-0x000000006FD41000-memory.dmp

Filesize
1.0MB

Download
memory/1148-8-0x0000000068AC0000-0x0000000068ACC000-memory.dmp

Filesize
48KB

Download
memory/1148-7-0x0000000063400000-0x0000000063415000-memory.dmp

Filesize
84KB

Download