78a4d8e5e8c33793e5a2020325d3a49e92e4826167742e93179bdacbf167b409

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
30/07/2026, 00:24

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General

Target
UCOREDLL.dll
Size 112KB
Sample260730-ap75vswaph
SHA256 78a4d8e5e8c33793e5a2020325d3a49e92e4826167742e93179bdacbf167b409
MD5 8370f3114924ed6c53741de7a253625a
SHA1 f7782d51e73526226a89229b4f3625c7ce43f3b3
SHA512 5a13c0fb787366869fac57139fa2ebbd0c34a1bfa76c05ac879da60e534cbac694385f2b6120fdb6c7cf0e62cf4948efbdfde96e695a9d377f44eedb2e1b1398
SSDEEP 1536:g+FKwswB29BLymvRwRvSpD0pQD61ShZT1Cw4cf0SbtsWFoYc0RkU:g8Vk9ymvyNMO4QqGeyqoLGL
TLSH
T123B39E217F91C4F2C099033C0E5B1B3A7FBE566CCE6959C3C7951E586E719B2AB3A201
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2196	4944	WerFault.exe	86

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

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

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 4944	2748	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UCOREDLL.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\UCOREDLL.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4944
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4944 -s 612
    3⤵
    - Program crash
    PID:2196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4944 -ip 4944
1⤵
PID:2932

Network

MITRE ATT&CK Enterprise v16

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 v16

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