expiro | f4c9e0bdd2527fa5ec8e48ac823b53210c14e78e3bc56c66074a355cfda5939a

Analysis

max time kernel
95s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2025, 14:58

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General

Target

JaffaCakes118_e72a4797da67ec75bc15d76537a9bea5.exe
Size

415KB
MD5

e72a4797da67ec75bc15d76537a9bea5
SHA1

2dca0df8c634949f482397fd1e3e06b6ce02dcd9
SHA256

f4c9e0bdd2527fa5ec8e48ac823b53210c14e78e3bc56c66074a355cfda5939a
SHA512

efb605bc8a883d82b058684b0cf8671fbe6c6236989624369a8d6f7f11ef58c31b7dc7f58cf812b958241eed7ffa6b3c4e423815142982e994191432b2ba0a32
SSDEEP

12288:IryyKsiauC0EOZq73PFsxxZu7k9KToIuZtH:IryyKsim0Egq7/FExZnKToIuZ

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 4 IoCs

backdoor

resource	yara_rule
behavioral2/memory/3988-0-0x000000000053B000-0x00000000005CE000-memory.dmp	family_expiro1
behavioral2/memory/3988-2-0x000000000053B000-0x00000000005CE000-memory.dmp	family_expiro1
behavioral2/memory/3988-3-0x00000000004D0000-0x00000000005CE000-memory.dmp	family_expiro1
behavioral2/memory/3988-1-0x00000000004D0000-0x00000000005CE000-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	JaffaCakes118_e72a4797da67ec75bc15d76537a9bea5.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e72a4797da67ec75bc15d76537a9bea5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e72a4797da67ec75bc15d76537a9bea5.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3988

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/3988-0-0x000000000053B000-0x00000000005CE000-memory.dmp

Filesize
588KB

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memory/3988-2-0x000000000053B000-0x00000000005CE000-memory.dmp

Filesize
588KB

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memory/3988-3-0x00000000004D0000-0x00000000005CE000-memory.dmp

Filesize
1016KB

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memory/3988-1-0x00000000004D0000-0x00000000005CE000-memory.dmp

Filesize
1016KB

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