expiro | 78191955a0697eff8aecc9be8d355b66607e8d29396705f0873a7403b5e725d8

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 00:47

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General

Target

78191955a0697eff8aecc9be8d355b66607e8d29396705f0873a7403b5e725d8N.exe
Size

664KB
MD5

b3fa041ea50e661c78e66af99bc77c80
SHA1

3d8704920be4febd0c20daef02cd767951babaac
SHA256

78191955a0697eff8aecc9be8d355b66607e8d29396705f0873a7403b5e725d8
SHA512

124e13638ba9871a8905412efa9da9a76836f36032671f967f2818ca79b7c78f41914dca2f2e31e71df332bdd7c3395903d832b3afb5395e3a35c6d7442abb5b
SSDEEP

12288:EP96t5QiJ7rX0rAqOjX95Ie6t6YzSzzafrnE0kEhqNa56+ot3YW9XM+:yOJnXqaX9zYzpLtaa0f98+

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/2208-2-0x0000000001000000-0x0000000001267000-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	78191955a0697eff8aecc9be8d355b66607e8d29396705f0873a7403b5e725d8N.exe

C:\Users\Admin\AppData\Local\Temp\78191955a0697eff8aecc9be8d355b66607e8d29396705f0873a7403b5e725d8N.exe
"C:\Users\Admin\AppData\Local\Temp\78191955a0697eff8aecc9be8d355b66607e8d29396705f0873a7403b5e725d8N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2208

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/2208-0-0x0000000001000000-0x0000000001267000-memory.dmp

Filesize
2.4MB

Download
memory/2208-1-0x000000000100A000-0x000000000100B000-memory.dmp

Filesize
4KB

Download
memory/2208-2-0x0000000001000000-0x0000000001267000-memory.dmp

Filesize
2.4MB

Download