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
1558s
max time network
1559s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-08-2024 19:44

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General

Target

win-airplay/avutil-56.dll
Size

632KB
MD5

77728494071d91965eafcb429f7f5079
SHA1

3ff9000c759e41fcc71cd05fad6162ce94b1e787
SHA256

1a2c893c4f3abd0f5f0536e49149d4ef410b307d9285d687bc5a25b15db88df1
SHA512

74b6c71c52b7f3e42684ac613aa8754ac7a185eda59bc33964d8d637f4bca4a15a0bc7f39791f56f3ac10079716956970d3a6b51f1da1aa427dbcd30ffe7199b
SSDEEP

12288:LJzDgD5bRZUMvyNrgKhC7obcuNqE+ZlixX:LJzU5bIMaN8Kk

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2488 772 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
2488	772	WerFault.exe	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1500 wrote to memory of 772	1500	rundll32.exe	rundll32.exe
PID 1500 wrote to memory of 772	1500	rundll32.exe	rundll32.exe
PID 1500 wrote to memory of 772	1500	rundll32.exe	rundll32.exe
PID 1500 wrote to memory of 772	1500	rundll32.exe	rundll32.exe
PID 1500 wrote to memory of 772	1500	rundll32.exe	rundll32.exe
PID 1500 wrote to memory of 772	1500	rundll32.exe	rundll32.exe
PID 1500 wrote to memory of 772	1500	rundll32.exe	rundll32.exe
PID 772 wrote to memory of 2488	772	rundll32.exe	WerFault.exe
PID 772 wrote to memory of 2488	772	rundll32.exe	WerFault.exe
PID 772 wrote to memory of 2488	772	rundll32.exe	WerFault.exe
PID 772 wrote to memory of 2488	772	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\win-airplay\avutil-56.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\win-airplay\avutil-56.dll,#1
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 236
3⤵
- Program crash
PID:2488

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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