expiro | 4fe1cc4fbd537d4102038bfbec4f29939ed560c5bb11ff692a52fde7c3a8a750

Analysis

max time kernel
92s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 07:03

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General

Target

4fe1cc4fbd537d4102038bfbec4f29939ed560c5bb11ff692a52fde7c3a8a750.exe
Size

691KB
MD5

09c866c76c72bc6d2fb063157ad7d33f
SHA1

0abdc750b3fc8d307eb3836a01ab009c7d0eefa2
SHA256

4fe1cc4fbd537d4102038bfbec4f29939ed560c5bb11ff692a52fde7c3a8a750
SHA512

7ecce97ec0fbd28c8e492c328607cced11e675baa2ef4dcde3ec67d3c2174910af2e9fb9d7824fe81bdb912c39221f1fc2da46c3f4e1fa6cd64336dd8ce56d03
SSDEEP

12288:iAglbRfky6B+mCdrFQBkNFEpEA9IHvr1J8NlbU04sEi56I6qX84tGHFj1ZBL5uZE:i5lbht6BH+rFQBkNapor1KNlQXsF6I1k

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/2180-2-0x0000000000400000-0x00000000005DB000-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	4fe1cc4fbd537d4102038bfbec4f29939ed560c5bb11ff692a52fde7c3a8a750.exe

C:\Users\Admin\AppData\Local\Temp\4fe1cc4fbd537d4102038bfbec4f29939ed560c5bb11ff692a52fde7c3a8a750.exe
"C:\Users\Admin\AppData\Local\Temp\4fe1cc4fbd537d4102038bfbec4f29939ed560c5bb11ff692a52fde7c3a8a750.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2180

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/2180-0-0x0000000000400000-0x00000000005DB000-memory.dmp

Filesize
1.9MB

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memory/2180-1-0x000000000040B000-0x000000000040C000-memory.dmp

Filesize
4KB

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memory/2180-2-0x0000000000400000-0x00000000005DB000-memory.dmp

Filesize
1.9MB

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