expiro | 8f30e6b34003c73c928316fb35c78b8ca90d06bf4824821b9d72224a456fe9d3

Analysis

max time kernel
117s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-01-2025 09:07

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General

Target

8f30e6b34003c73c928316fb35c78b8ca90d06bf4824821b9d72224a456fe9d3N.exe
Size

601KB
MD5

0702823b4696e17e1b40228daa7000b0
SHA1

3df320690b1c03aed4e51b50147bc19fced14825
SHA256

8f30e6b34003c73c928316fb35c78b8ca90d06bf4824821b9d72224a456fe9d3
SHA512

38920fa6033df408526a241ce7e96b634ae611355d837fe3b2f7b93272f7c5433027e053fec260add59d34e175c5fedb1bfa0c6ac10909adf098c50c1dec6d76
SSDEEP

12288:9Mf7R8B9JnN+gXdoMRMMsFck339ByRzffM:927R8B7nxRRMMqckdBcLf

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/2008-2-0x0000000001000000-0x00000000011B2000-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	8f30e6b34003c73c928316fb35c78b8ca90d06bf4824821b9d72224a456fe9d3N.exe

C:\Users\Admin\AppData\Local\Temp\8f30e6b34003c73c928316fb35c78b8ca90d06bf4824821b9d72224a456fe9d3N.exe
"C:\Users\Admin\AppData\Local\Temp\8f30e6b34003c73c928316fb35c78b8ca90d06bf4824821b9d72224a456fe9d3N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2008

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/2008-0-0x0000000001000000-0x00000000011B2000-memory.dmp

Filesize
1.7MB

Download
memory/2008-1-0x0000000001003000-0x0000000001005000-memory.dmp

Filesize
8KB

Download
memory/2008-2-0x0000000001000000-0x00000000011B2000-memory.dmp

Filesize
1.7MB

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