8b9147aeca757bc36f30e98c7481ec302d2be6de1b893a6f2ad80864f1106fb3

Resubmissions

03-08-2024 19:46

240803-yg8nestbqr 10

03-08-2024 19:44

240803-ygbcxsxhld 6

03-08-2024 19:41

240803-yd6pnaxgpa 6

Analysis

max time kernel
134s
max time network
142s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
03-08-2024 19:41

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General

Target

win-airplay/avformat-58.dll
Size

2.4MB
MD5

893482fc85d1b4eed7f437884edb0853
SHA1

42686213b4f5999c511d98ad0324207c5635145b
SHA256

d36d0718790e389aa3e222aeea10e430c810e994355ffb54f0f40456354d463a
SHA512

c5cbda2b33cdbbbc21c0fd50a93dfe8b8077b7b62eb470a2e8c9dbbc71cfe18adb22aedef1f97223996ec329cdd3effba3e0a1ed01d2a0eed0c16b29005639d9
SSDEEP

49152:BqS0QT+WUzhm2xpq4qhv2hSONY0wXZ8ps7o83Q5:BqgyWY4Ko4qV2hPNYVXZWF

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2936 2136 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
2936	2136	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 4548 wrote to memory of 2136	4548	rundll32.exe	rundll32.exe
PID 4548 wrote to memory of 2136	4548	rundll32.exe	rundll32.exe
PID 4548 wrote to memory of 2136	4548	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\win-airplay\avformat-58.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4548

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\win-airplay\avformat-58.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 636
3⤵
- Program crash
PID:2936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2136 -ip 2136
1⤵
PID:1148

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

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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