expiro | 089aa68b19066954fca67a9025a73eafd379dde7bce81e9cb473bce2f457dbcc

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
07/01/2025, 19:57

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General

Target

JaffaCakes118_765d4b301be90fcb6c0ab947e297e902.exe
Size

415KB
MD5

765d4b301be90fcb6c0ab947e297e902
SHA1

f48a44b1cfdf3efcdeabfd83ea8c8322461c98e0
SHA256

089aa68b19066954fca67a9025a73eafd379dde7bce81e9cb473bce2f457dbcc
SHA512

ec8850c5675872224104fc5b7c483e92e467ad91131fecc7eb3b8b4a370d001c4dcb0b7c5332c032f670449882827faa14a3343b76e07da7e0bd07e11076b609
SSDEEP

12288:br/yKsi6aqTWeyxUIzE9k+JMZX8cxY7Fw/ys:br/yKsi6aL5eBmZO72/L

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/2292-0-0x00000000006CB000-0x000000000075E000-memory.dmp	family_expiro1
behavioral2/memory/2292-1-0x0000000000660000-0x000000000075E000-memory.dmp	family_expiro1
behavioral2/memory/2292-2-0x00000000006CB000-0x000000000075E000-memory.dmp	family_expiro1
behavioral2/memory/2292-3-0x0000000000660000-0x000000000075E000-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_765d4b301be90fcb6c0ab947e297e902.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_765d4b301be90fcb6c0ab947e297e902.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_765d4b301be90fcb6c0ab947e297e902.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2292

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/2292-0-0x00000000006CB000-0x000000000075E000-memory.dmp

Filesize
588KB

Download
memory/2292-1-0x0000000000660000-0x000000000075E000-memory.dmp

Filesize
1016KB

Download
memory/2292-2-0x00000000006CB000-0x000000000075E000-memory.dmp

Filesize
588KB

Download
memory/2292-3-0x0000000000660000-0x000000000075E000-memory.dmp

Filesize
1016KB

Download