expiro | 73faba175313e77d3b76f1adf8a9f62cf6446dc9af668a80794961ce875d814f

Analysis

max time kernel
63s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17/01/2025, 11:44

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General

Target

73faba175313e77d3b76f1adf8a9f62cf6446dc9af668a80794961ce875d814fN.exe
Size

513KB
MD5

b2fa6ee4d5e938ff2098f748624ee5e0
SHA1

3df50a62ebe35f678145295b4b4ff677117c3343
SHA256

73faba175313e77d3b76f1adf8a9f62cf6446dc9af668a80794961ce875d814f
SHA512

eab88590362241a950522fc2b9a310692f4e611108e4d22cc338e43f35a99667a2e0f2374088779f4c4a6c7cc58fdc29c5c9fdf1038e2a97830d6fd0a83696c5
SSDEEP

12288:vGjlzE/sYpcbLdfqgFeeIl4A/51wQYn4x2qJKde6Od6om7xKSnnVL5U1phTDYjWe:vIlzEUYqZqggdkUd8t2Dpvoo

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/2884-2-0x0000000001000000-0x000000000119C000-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	73faba175313e77d3b76f1adf8a9f62cf6446dc9af668a80794961ce875d814fN.exe

C:\Users\Admin\AppData\Local\Temp\73faba175313e77d3b76f1adf8a9f62cf6446dc9af668a80794961ce875d814fN.exe
"C:\Users\Admin\AppData\Local\Temp\73faba175313e77d3b76f1adf8a9f62cf6446dc9af668a80794961ce875d814fN.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2884

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/2884-0-0x0000000001000000-0x000000000119C000-memory.dmp

Filesize
1.6MB

Download
memory/2884-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

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memory/2884-2-0x0000000001000000-0x000000000119C000-memory.dmp

Filesize
1.6MB

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