expiro | 11d521760b79439a0d09c6f5f27b459082642dd640a821f02fb48c9eee599d04

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 03:34

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General

Target

11d521760b79439a0d09c6f5f27b459082642dd640a821f02fb48c9eee599d04N.exe
Size

628KB
MD5

96a32e83f5e3a6263561b82504c9b2f0
SHA1

3da55026776a64927275600755bb777307f3ef79
SHA256

11d521760b79439a0d09c6f5f27b459082642dd640a821f02fb48c9eee599d04
SHA512

f4fb0c37d1556b1f5b113221a1b4259bf662b2672bedcfcc2b1b920e8301b1063b37ea291fc79078e23b86aa0a155ff718d0f65224e9d4d9f0c9e6cef2b746d9
SSDEEP

12288:Fqs7UXDe3dZIcAiHvur3Zl4RLNCcdi7Pn4fIPVbPmWWDgyx2ZUrZKPYigBDlLMCQ:Fqs0De3dZJHvur3M1NCCi7Pn4abPmWcZ

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/2032-2-0x0000000001000000-0x000000000125C000-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	11d521760b79439a0d09c6f5f27b459082642dd640a821f02fb48c9eee599d04N.exe

C:\Users\Admin\AppData\Local\Temp\11d521760b79439a0d09c6f5f27b459082642dd640a821f02fb48c9eee599d04N.exe
"C:\Users\Admin\AppData\Local\Temp\11d521760b79439a0d09c6f5f27b459082642dd640a821f02fb48c9eee599d04N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2032

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/2032-0-0x0000000001000000-0x000000000125C000-memory.dmp

Filesize
2.4MB

Download
memory/2032-1-0x0000000001011000-0x0000000001012000-memory.dmp

Filesize
4KB

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memory/2032-2-0x0000000001000000-0x000000000125C000-memory.dmp

Filesize
2.4MB

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