a296f9485d780b55e49b080d12f5eb2ccdc4046ba6c2ea7cce85cda84970bca4

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 02:46

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General

Target

pdfium.dll
Size

4.3MB
MD5

65a63bd3e6c4ce54299bf494582304f3
SHA1

e6f63f69388dd5a3cda90403711b78fe5c667981
SHA256

5b8d7269ed5ca414208ff017f52ee65f14d4d8a707a39a7dc3f9879c0c0ce335
SHA512

f8ff930aa55222478967b7865465c3f75138b9ff172fdcc1aab47a0172641c5a790e73b5d98bf47fc772002437ad2153846dec626e020408c8d6daee0c630b59
SSDEEP

98304:2RxHLI9xEoQRTlaVA+5xfMMHG0kOJuJrCpxPa0wwnYCICsAV:YpTcAsEsuyPahCICsA

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4692 3600 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
4692	3600	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 4884 wrote to memory of 3600	4884	rundll32.exe	rundll32.exe
PID 4884 wrote to memory of 3600	4884	rundll32.exe	rundll32.exe
PID 4884 wrote to memory of 3600	4884	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\pdfium.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\pdfium.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3600
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3600 -s 620
    3⤵
    - Program crash
    PID:4692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3600 -ip 3600
1⤵
PID:3688

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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