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
1652s
max time network
1147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-08-2024 19:44

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General

Target

win-airplay/avcodec-58.dll
Size

13.1MB
MD5

35241987061342637fc7a2ee0c38b88f
SHA1

adf94deec5412ec5a3a4f03d8889ae5e58aa0f40
SHA256

cb8e954fd76e363cb48f0afb9e87db8cfb2646edfb66a321cd446a2166dbbb23
SHA512

ce9218c2edb135971bb901feaeb57df81b651957e6c68228ef1f689277c65966ad103fffcfadf28bc79b1da4ea657284c0b7f145944993efac6e14b541579f08
SSDEEP

393216:yfhXF6cVhKLh2RJMDhydfoN32IV0PGhjLXHSpTy:yfhlZ+l2IV04ew

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4604 2196 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
4604	2196	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 2784 wrote to memory of 2196	2784	rundll32.exe	rundll32.exe
PID 2784 wrote to memory of 2196	2784	rundll32.exe	rundll32.exe
PID 2784 wrote to memory of 2196	2784	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\win-airplay\avcodec-58.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2784

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\win-airplay\avcodec-58.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2196 -s 712
3⤵
- Program crash
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2196 -ip 2196
1⤵
PID:4184

Network

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

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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