expiro | 5fe5e2861f87eb45375de51856cbce7e7b56fb28f486372ee2c91356e4338f48

Analysis

max time kernel
94s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 09:29

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General

Target

JaffaCakes118_fd629d89a49c0fa9376f08351676ace6.exe
Size

415KB
MD5

fd629d89a49c0fa9376f08351676ace6
SHA1

1aeb12ac5aa2fad19f032fb780fa8c028c5f6ddd
SHA256

5fe5e2861f87eb45375de51856cbce7e7b56fb28f486372ee2c91356e4338f48
SHA512

988deecdb33e8b796de293e322f4876d2735d33f63974e94e00af3264a6670356c9b38ea44193f62319698ab7a0b43fdb449a9c8958a6fef44afc4e8f7eb8cc2
SSDEEP

6144:lrTyKsi3UfohWEGmNO2/hFJM9gRY+e2at8cxY7FwWKq5XsN:lrTyKsi3moJGmQK7JMZX8cxY7Fw/ys

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/3184-0-0x00000000008BB000-0x000000000094E000-memory.dmp	family_expiro1
behavioral2/memory/3184-1-0x0000000000850000-0x000000000094E000-memory.dmp	family_expiro1
behavioral2/memory/3184-3-0x0000000000850000-0x000000000094E000-memory.dmp	family_expiro1
behavioral2/memory/3184-2-0x00000000008BB000-0x000000000094E000-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_fd629d89a49c0fa9376f08351676ace6.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd629d89a49c0fa9376f08351676ace6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fd629d89a49c0fa9376f08351676ace6.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3184

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/3184-0-0x00000000008BB000-0x000000000094E000-memory.dmp

Filesize
588KB

Download
memory/3184-1-0x0000000000850000-0x000000000094E000-memory.dmp

Filesize
1016KB

Download
memory/3184-3-0x0000000000850000-0x000000000094E000-memory.dmp

Filesize
1016KB

Download
memory/3184-2-0x00000000008BB000-0x000000000094E000-memory.dmp

Filesize
588KB

Download