expiro | 5a8bed8daf6195804751fce0c222fea9e0bc9cd402de9edf71c5cc08addf8603

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2025 14:40

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General

Target

JaffaCakes118_a0a0b4888072e459adb99ecd803659a6.exe
Size

284KB
MD5

a0a0b4888072e459adb99ecd803659a6
SHA1

9252e972dff2920ae25cf6894b31f091d7dd59e5
SHA256

5a8bed8daf6195804751fce0c222fea9e0bc9cd402de9edf71c5cc08addf8603
SHA512

552df870ab8309714eeba1a28f6260af68dfd8f2191099639cec39efc1960a15f799caf9b89c09e90c03fcd365631210e4039eb3e8db8ad8ed2d1ac247f9d984
SSDEEP

6144:/N7RZ9+t5QY8iJYeDZim5EsP3c1/n2pzjyWPhnYVryyl0oebkhH:1P9+t5QiJ7im5EKshufyWPe0

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/4540-2-0x0000000001000000-0x0000000001096000-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_a0a0b4888072e459adb99ecd803659a6.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a0a0b4888072e459adb99ecd803659a6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a0a0b4888072e459adb99ecd803659a6.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4540

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/4540-0-0x0000000001000000-0x0000000001096000-memory.dmp

Filesize
600KB

Download
memory/4540-1-0x000000000100A000-0x000000000100B000-memory.dmp

Filesize
4KB

Download
memory/4540-2-0x0000000001000000-0x0000000001096000-memory.dmp

Filesize
600KB

Download