expiro | 4c301adf68ae80e65e97a4f8f1f31143b3d27db4966e20d34e2418e50b651aea

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 10:57

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General

Target

4c301adf68ae80e65e97a4f8f1f31143b3d27db4966e20d34e2418e50b651aeaN.exe
Size

528KB
MD5

a79f7ab28e50ea960edbf359a1397920
SHA1

64c03852ce99aaf6fcf913c21333eee57cfde9ce
SHA256

4c301adf68ae80e65e97a4f8f1f31143b3d27db4966e20d34e2418e50b651aea
SHA512

3f2c2d6cb16b70a88790677f5f7a74d8777c7afb6e56296460efea90bc198d9c9fed3ac9467954c91b109a624555fd650d47a92bfcceb40e2efaefeaa4686442
SSDEEP

12288:8AxHUsqXbeLl58edpcazNdsBrNeITTt9+pYckNI:8AxHUXXbE+eD1d8rNeqTt9+pnk

Score

10^/10

expiro backdoor discovery

Malware Config

Signatures

Expiro family
expiro
Expiro, m0yv
Expiro aka m0yv is a multi-functional backdoor written in C++.
backdoor expiro

Expiro payload 1 IoCs

backdoor

resource	yara_rule
behavioral2/memory/3296-2-0x0000000001000000-0x00000000011A9000-memory.dmp	family_expiro1

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	4c301adf68ae80e65e97a4f8f1f31143b3d27db4966e20d34e2418e50b651aeaN.exe

C:\Users\Admin\AppData\Local\Temp\4c301adf68ae80e65e97a4f8f1f31143b3d27db4966e20d34e2418e50b651aeaN.exe
"C:\Users\Admin\AppData\Local\Temp\4c301adf68ae80e65e97a4f8f1f31143b3d27db4966e20d34e2418e50b651aeaN.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3296

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

Replay Monitor

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Downloads

memory/3296-0-0x0000000001000000-0x00000000011A9000-memory.dmp

Filesize
1.7MB

Download
memory/3296-1-0x0000000001006000-0x0000000001007000-memory.dmp

Filesize
4KB

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memory/3296-2-0x0000000001000000-0x00000000011A9000-memory.dmp

Filesize
1.7MB

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