expiro | 1776fe8c0070b8e773d97d0b9b53c07213f12516b37e5abe012125def3f140ff

Analysis

max time kernel
148s
max time network
142s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/09/2026, 06:31

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General

Target
1776fe8c0070b8e773d97d0b9b53c07213f12516b37e5abe012125def3f140ff.exe
Size 746KB
Sample260928-g92bdaxblb
SHA256 1776fe8c0070b8e773d97d0b9b53c07213f12516b37e5abe012125def3f140ff
MD5 6f7caaba6dc01caadd38a25214fcbcb6
SHA1 b920a8914293bd66c64da4c00a0ae147788609e9
SHA512 86266e67651d86b2caa00e47245951e895a272b064d8c18670a27f5c572e19ab34a1b54a70ff9fc137c967d845a8d3e251c6c3694f646a3ea54dcdbcc60a4bd0
SSDEEP 12288:ZA9lbRfky6B+WCa3jR9XcIMwsbOo758cS3jFEpPRrHeuAWng+XkAY2cVKe743Xvp:Zclbht6B3ljcXJbOo758cS3jFEpPRgcb
TLSH
T1B9F46C18B3F6827AFCBFD67D2830CB6DA476F86A88A1CF3E062411853D60751D990767
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery expiro

Malware Config

Signatures

Family: 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/5728-1-0x0000000000400000-0x000000000067C000-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	1776fe8c0070b8e773d97d0b9b53c07213f12516b37e5abe012125def3f140ff.exe

C:\Users\Admin\AppData\Local\Temp\1776fe8c0070b8e773d97d0b9b53c07213f12516b37e5abe012125def3f140ff.exe
"C:\Users\Admin\AppData\Local\Temp\1776fe8c0070b8e773d97d0b9b53c07213f12516b37e5abe012125def3f140ff.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:5728

Network

MITRE ATT&CK Enterprise v16

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/5728-0-0x0000000000400000-0x000000000067C000-memory.dmp

Download

memory/5728-1-0x0000000000400000-0x000000000067C000-memory.dmp