expiro | a3e5b9e0f3c04495120210f405600120ae502406f7db40551658d18dceb6eabb

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 17:22

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General

Target

a3e5b9e0f3c04495120210f405600120ae502406f7db40551658d18dceb6eabbN.exe
Size

628KB
MD5

c90b993c2a614c0617ae01b68ac9a100
SHA1

3bef7c9b3219c90df12ce9cd0ba06313393d8fdb
SHA256

a3e5b9e0f3c04495120210f405600120ae502406f7db40551658d18dceb6eabb
SHA512

4ce0b20427532591a9639f4e8d454fbeca023e816dff0e50e8b501eb28fc512b339e028b9b65a333686110dc82d2276cec1e44735101e713350e4b8ff668158c
SSDEEP

12288:1qs7UXwoZgftpc62Il4V/bi3S8Hhot4TsYtTjNjHO4oufI4KiRJ:1qs0wiIO9i3S8Hhot4ThTZO4ouffB

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/2032-2-0x0000000001000000-0x000000000125B000-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	a3e5b9e0f3c04495120210f405600120ae502406f7db40551658d18dceb6eabbN.exe

C:\Users\Admin\AppData\Local\Temp\a3e5b9e0f3c04495120210f405600120ae502406f7db40551658d18dceb6eabbN.exe
"C:\Users\Admin\AppData\Local\Temp\a3e5b9e0f3c04495120210f405600120ae502406f7db40551658d18dceb6eabbN.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/2032-0-0x0000000001000000-0x000000000125B000-memory.dmp

Filesize
2.4MB

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

Filesize
4KB

Download
memory/2032-2-0x0000000001000000-0x000000000125B000-memory.dmp

Filesize
2.4MB

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