expiro | 9e82771937bc88e75791f8e16f4613cf0d5aef6e47c772a048f7d29950eb5d82

Analysis

max time kernel
93s
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
03-01-2025 08:55

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General

Target

JaffaCakes118_6b81a26989c934e6ff0c8171898827c2.exe
Size

457KB
MD5

6b81a26989c934e6ff0c8171898827c2
SHA1

a2a6042faa7ca7905b6101fdf89159d3bd038c0d
SHA256

9e82771937bc88e75791f8e16f4613cf0d5aef6e47c772a048f7d29950eb5d82
SHA512

997ed17d77e6ed514084345fa7cd93faa427d9daa8ebb571e96740b631352a9f51742d0fa5f2a0abb1b6fbde21b984e4fddb582cde4dae880dd0ce47464d73ec
SSDEEP

12288:e8kQXmYQu1UmqDqGBXqJ44zGM1FUvqKiEPXa:9k+XUnG44zGQzKhXa

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/3736-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/3736-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/3736-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/3736-3-0x0000000010000000-0x0000000010108000-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_6b81a26989c934e6ff0c8171898827c2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b81a26989c934e6ff0c8171898827c2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b81a26989c934e6ff0c8171898827c2.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3736

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/3736-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

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memory/3736-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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memory/3736-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/3736-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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