expiro | 3155ca60c95744ea670abdf897f1b43a9df1d02ddebde020fbacd5a095579900

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2025 13:26

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General

Target

JaffaCakes118_a742f013185b78dce9aa15cd334defb7.exe
Size

456KB
MD5

a742f013185b78dce9aa15cd334defb7
SHA1

05f339ee6fee71dee60f4aa2bbc8fb3f226c8234
SHA256

3155ca60c95744ea670abdf897f1b43a9df1d02ddebde020fbacd5a095579900
SHA512

eb233823d6c4e68d22d410356fd91e9bd29f8c18f7393e9eb035c9523049a92548731bed2c130c11a357e97c21de58bbc0c30eb46c5dbc866385c1b4575b1c1d
SSDEEP

12288:8hzKCTFlTwpsK/ZeXj3N3kVbXI4cvsnFiOk3CwgQ51:MtTFlTwpsK/Zwe5TnFiOk3BV5

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/916-0-0x0000000000474000-0x0000000000507000-memory.dmp	family_expiro1
behavioral2/memory/916-1-0x0000000000400000-0x0000000000507000-memory.dmp	family_expiro1
behavioral2/memory/916-2-0x0000000000474000-0x0000000000507000-memory.dmp	family_expiro1
behavioral2/memory/916-3-0x0000000000400000-0x0000000000507000-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_a742f013185b78dce9aa15cd334defb7.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a742f013185b78dce9aa15cd334defb7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a742f013185b78dce9aa15cd334defb7.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:916

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/916-0-0x0000000000474000-0x0000000000507000-memory.dmp

Filesize
588KB

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memory/916-1-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

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memory/916-2-0x0000000000474000-0x0000000000507000-memory.dmp

Filesize
588KB

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memory/916-3-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

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