expiro | 4672026114b9e0381086c2cf32f63f9cf35a1be241a85a07cf7a16a3d3f913fd

Analysis

max time kernel
96s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 06:31

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General

Target

JaffaCakes118_7830c8b4164dee97ee1e82b2b5831a90.exe
Size

528KB
MD5

7830c8b4164dee97ee1e82b2b5831a90
SHA1

7ae852225a1452904f42f391db1ea8ea3d982022
SHA256

4672026114b9e0381086c2cf32f63f9cf35a1be241a85a07cf7a16a3d3f913fd
SHA512

6b38c74c3fa5bb4f0fc27e33d5b48e7fc6d72fa0978953afb850550289d02291fc2a7bac731ac311ba6c01cd4e4966c56c02fd5eeea3a9882e0ae8ad951e3168
SSDEEP

6144:dI9Rra/rT9wROcfFaOfI8Z2Gdhq7aNG91Dh2cVG25JRjLoS9sHAd3L1QLNOZXJx/:GRhfFNZ/COUAS9Z9oNOtNA1Y

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/2364-2-0x0000000000400000-0x00000000005A6000-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_7830c8b4164dee97ee1e82b2b5831a90.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7830c8b4164dee97ee1e82b2b5831a90.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7830c8b4164dee97ee1e82b2b5831a90.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2364

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/2364-0-0x0000000000400000-0x00000000005A6000-memory.dmp

Filesize
1.6MB

Download
memory/2364-1-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

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memory/2364-2-0x0000000000400000-0x00000000005A6000-memory.dmp

Filesize
1.6MB

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