e2d70229b34a86c7dc8caaab45b42df8ba368789b19db2ddb997a08533d5564f

Analysis

max time kernel
148s
max time network
157s
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

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General

Target

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

824KB
MD5

60a5383ba17d8f519cb4356e28873a14
SHA1

6bf70393d957320a921226c7fcdf352a0a67442d
SHA256

80878e4543959b63cbd87e3ebb82f4988cbbdf9da564370aa15410783c5f343f
SHA512

a0e0ef1d821e13977d14a806357128285edc0a26c01dcf9fd99e7c62f8efccdf608b1c0dceb1f3f40e988692eb549e22193d9ce253a1c0c1d8b10c46955bee12
SSDEEP

12288:0/Ka9tTMxe3NmvU7sBlHaLZuJJPgcCq+1kbb7Uety9v:0/P9tTMxe3NmOsB0LZuvYcCq+o3Ue49

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3012 2884 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
3012	2884	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 3416 wrote to memory of 2884	3416	regsvr32.exe	regsvr32.exe
PID 3416 wrote to memory of 2884	3416	regsvr32.exe	regsvr32.exe
PID 3416 wrote to memory of 2884	3416	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\MUICoreLib.dll"
1⤵
- Suspicious use of WriteProcessMemory
PID:3416
- C:\Windows\SysWOW64\regsvr32.exe
  /s "C:\Users\Admin\AppData\Local\Temp\Oficio 192 Notificación Electrónica CENDO RAMA JUDICIAL RAD 1531651351651 1321351 00 354165\MUICoreLib.dll"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2884 -s 648
    3⤵
    - Program crash
    PID:3012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2884 -ip 2884
1⤵
PID:2820

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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