expiro | 11a9f3d95d2f08a3ad13bc2cf7b8f3609ff80a86f9fffd24aa5bbd5a699ed43d

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
08/01/2025, 07:46

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General

Target

11a9f3d95d2f08a3ad13bc2cf7b8f3609ff80a86f9fffd24aa5bbd5a699ed43d.exe
Size

592KB
MD5

e5aa2832936adf6304a0423b478f57bf
SHA1

83dea81e06dcde00a99bcafe6fea19a3706840a3
SHA256

11a9f3d95d2f08a3ad13bc2cf7b8f3609ff80a86f9fffd24aa5bbd5a699ed43d
SHA512

0504446531aa481b673a7d6b03e4579e5a72a2ea205cd2a2952cc6a8c3e8b4870fbf6a816340f35d3a9cc496fed4d0b067475245ca7d7370b7f8b4557137f890
SSDEEP

12288:b7T/h4tgIIhJ+SICqaPSgHmg5M/Dp5nVhq6mP1FQkDNXIDqpWSNdCty:b7T/0IhbBFSaYDp5nVkKKEZgcty

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
behavioral1/memory/2160-2-0x0000000001000000-0x000000000125E000-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	11a9f3d95d2f08a3ad13bc2cf7b8f3609ff80a86f9fffd24aa5bbd5a699ed43d.exe

C:\Users\Admin\AppData\Local\Temp\11a9f3d95d2f08a3ad13bc2cf7b8f3609ff80a86f9fffd24aa5bbd5a699ed43d.exe
"C:\Users\Admin\AppData\Local\Temp\11a9f3d95d2f08a3ad13bc2cf7b8f3609ff80a86f9fffd24aa5bbd5a699ed43d.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2160

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

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Downloads

memory/2160-0-0x0000000001000000-0x000000000125E000-memory.dmp

Filesize
2.4MB

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memory/2160-2-0x0000000001000000-0x000000000125E000-memory.dmp

Filesize
2.4MB

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memory/2160-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

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