expiro | 144f6470837679a8b27956f907eaf659f1d82adc5ce2e4d0419bc9d49b141d2b

Analysis

max time kernel
149s
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
04-01-2025 10:21

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General

Target

JaffaCakes118_7926116330476f3ec399eeeecd79b336.exe
Size

555KB
MD5

7926116330476f3ec399eeeecd79b336
SHA1

171aa97b58acf6dcce6c6291e02a9109174e4349
SHA256

144f6470837679a8b27956f907eaf659f1d82adc5ce2e4d0419bc9d49b141d2b
SHA512

b4da90493fc31161ebf14ecf0b2750c73a4ac2853d3ecb8234b1c98db7b265aafa010ec5fd363a555d47d9502c2290e234fcf6f93ca6d2bfe17002851ae96956
SSDEEP

12288:YzfNXtgwut1cLl4prQnKugkc7rBIP875U+QoX:mswutCl4p87gF71IY5U+Qo

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/2596-2-0x0000000030000000-0x00000000301A6000-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_7926116330476f3ec399eeeecd79b336.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7926116330476f3ec399eeeecd79b336.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7926116330476f3ec399eeeecd79b336.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2596

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/2596-0-0x0000000030000000-0x00000000301A6000-memory.dmp

Filesize
1.6MB

Download
memory/2596-1-0x0000000030004000-0x0000000030006000-memory.dmp

Filesize
8KB

Download
memory/2596-2-0x0000000030000000-0x00000000301A6000-memory.dmp

Filesize
1.6MB

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