e2d70229b34a86c7dc8caaab45b42df8ba368789b19db2ddb997a08533d5564f

Analysis

max time kernel
91s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-es
resource tags

arch:x64arch:x86image:win10v2004-20241007-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
17-11-2024 04:04

Target

Oficio 192 Notificación Electrónica CENDO RAMA JUDICIAL RAD 1531651351651 1321351 00 354165/MUIUtils.dll
Size

385KB
MD5

97d6efb8b8e0b0f03701a7bafc398545
SHA1

0fe11e0b7f47fdec9aaa98b83728c125409e9d5b
SHA256

51c8715fac6797b7f962a68903f1f994c2af1088ac31972b5e512dab5ab4fd8e
SHA512

2bf8935ad96f35586be6074e8798fa36ee13a05cef05aa0df120ef6800cc1d941310c672894d2380b87c7491663c137fa5bcade4a732bcc6448ba3bf0badb2d7
SSDEEP

6144:2sOfOXbrZthMAjzD7rK4CA5Jh55W5/js47WOZXizi:2sOfOXbBpvG4zhPy3Zt

Score

3^/10

discovery

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2492 4544 WerFault.exe regsvr32.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:

regsvr32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe

pid	pid_target	process	target process
2492	4544	WerFault.exe	regsvr32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 4944 wrote to memory of 4544	4944	regsvr32.exe	regsvr32.exe
PID 4944 wrote to memory of 4544	4944	regsvr32.exe	regsvr32.exe
PID 4944 wrote to memory of 4544	4944	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\Oficio 192 Notificación Electrónica CENDO RAMA JUDICIAL RAD 1531651351651 1321351 00 354165\MUIUtils.dll"
1⤵
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Windows\SysWOW64\regsvr32.exe
  /s "C:\Users\Admin\AppData\Local\Temp\Oficio 192 Notificación Electrónica CENDO RAMA JUDICIAL RAD 1531651351651 1321351 00 354165\MUIUtils.dll"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4544
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 684
    3⤵
    - Program crash
    PID:2492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4544 -ip 4544
1⤵
PID:2860

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/4544-0-0x0000000000AE0000-0x0000000000B43000-memory.dmp

Filesize
396KB

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