27e91e3f6b4b2c5853c59ad4cc8d5d0064bcefcfee10529382d5b6f38eb0977c

Resubmissions

02-08-2024 14:37

240802-rzb9lsxgrm 4

02-08-2024 14:35

240802-rx6qfaxgnr 3

Analysis

max time kernel
136s
max time network
131s
platform
windows11-21h2_x64
resource
win11-20240730-en
resource tags

arch:x64arch:x86image:win11-20240730-enlocale:en-usos:windows11-21h2-x64system
submitted
02-08-2024 14:37

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Report Analysis Logs

General

Target

UltimMC/libLauncher_rainbow.dll
Size

67KB
MD5

8bacee60fbf39997eb56bb4c2994f65b
SHA1

f604b07e35891b8d46f5d27c3b3232ab4711392e
SHA256

b14e80c81dd81f5f5c5d4a3b4f4df3ce36e79a107ed23e25b74ad62836ffefa8
SHA512

7c936c19858bffe1cffc65e9ec31553f623535527d8c4a93c94ff7ad791251e63e2fc7e23827fd91e0ce2412a731b5af028910aba6c948c8468858fbb4abd80a
SSDEEP

768:qEg24DKoyYH150BEexXfz2xGppy/a2MaOtRd9P9mg8rO71:qFVD11ij1oDM5hP7x

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4300 1144 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
4300	1144	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 4676 wrote to memory of 1144	4676	rundll32.exe	rundll32.exe
PID 4676 wrote to memory of 1144	4676	rundll32.exe	rundll32.exe
PID 4676 wrote to memory of 1144	4676	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:4676

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:1144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 620
3⤵
- Program crash
PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1144 -ip 1144
1⤵
PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1144-1-0x0000000002330000-0x000000000285F000-memory.dmp

Filesize
5.2MB

Download
memory/1144-5-0x0000000002331000-0x00000000025D9000-memory.dmp

Filesize
2.7MB

Download
memory/1144-4-0x0000000002330000-0x000000000285F000-memory.dmp

Filesize
5.2MB

Download
memory/1144-6-0x0000000002330000-0x000000000285F000-memory.dmp

Filesize
5.2MB

Download
memory/1144-11-0x000000006FC40000-0x000000006FD41000-memory.dmp

Filesize
1.0MB

Download
memory/1144-10-0x0000000064940000-0x0000000064954000-memory.dmp

Filesize
80KB

Download
memory/1144-12-0x0000000061940000-0x0000000061EB5000-memory.dmp

Filesize
5.5MB

Download
memory/1144-9-0x0000000068AC0000-0x0000000068ACC000-memory.dmp

Filesize
48KB

Download
memory/1144-8-0x000000006E940000-0x000000006E964000-memory.dmp

Filesize
144KB

Download
memory/1144-7-0x0000000063400000-0x0000000063415000-memory.dmp

Filesize
84KB

Download