e2d70229b34a86c7dc8caaab45b42df8ba368789b19db2ddb997a08533d5564f

Analysis

max time kernel
147s
max time network
160s
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/MCoreLib.dll
Size

106KB
MD5

815b07c37c83b13457d37ca8c6a7a561
SHA1

746138b85e5611fd058c008411889a15870083cd
SHA256

153c1b5e96e7bc4c9f858c3cc3bc6cd5e09ef68776d95871ca38824c430654c4
SHA512

8949ab1deae036ae785ad20c634519aa368b4768f0dd65c0dc53f8ea70dd7d707c984277b914de14054eb8a044182ff78205e3a02555e377750bb829760b8c31
SSDEEP

1536:3TiEEijMKdzfgbmuNOaAr5jvlY44I2UpoURQr9QblKseK5LgaEirhshZxd7Upy9:OtijKmuNOtrpy4roUGr2bl+/Kpy9

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

456 1484 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
456	1484	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 3496 wrote to memory of 1484	3496	rundll32.exe	rundll32.exe
PID 3496 wrote to memory of 1484	3496	rundll32.exe	rundll32.exe
PID 3496 wrote to memory of 1484	3496	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Oficio 192 Notificación Electrónica CENDO RAMA JUDICIAL RAD 1531651351651 1321351 00 354165\MCoreLib.dll",#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Oficio 192 Notificación Electrónica CENDO RAMA JUDICIAL RAD 1531651351651 1321351 00 354165\MCoreLib.dll",#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1484
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 612
    3⤵
    - Program crash
    PID:456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1484 -ip 1484
1⤵
PID:4516

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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