expiro | 2cc7826d740fae523d6e8ecc0da9489b33bced11d391e0b07f7f688b6e293981

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2025 21:05

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General

Target

JaffaCakes118_d2605cb93cb77384fff7bbd368e7c456.exe
Size

415KB
MD5

d2605cb93cb77384fff7bbd368e7c456
SHA1

dd16d2c79f6421da03e19b36ff460842d73864f3
SHA256

2cc7826d740fae523d6e8ecc0da9489b33bced11d391e0b07f7f688b6e293981
SHA512

f1a18a5daff35138284344a5fe20d15d58dd30d58a2b419aefaf03ab08369d20aad9470ba53a30642f82a784df580b3d75626d2d1110692f69cbdc7f42d5ef56
SSDEEP

12288:drvyKsiX7VMLCkqm9S93FcCgg6IIT2pIbO8Eq5GP1mdr:drvyKsiLAxEcNgjpj8ECF

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 3 IoCs

backdoor

resource	yara_rule
behavioral2/memory/540-0-0x0000000000D6B000-0x0000000000DFE000-memory.dmp	family_expiro1
behavioral2/memory/540-1-0x0000000000D6B000-0x0000000000DFE000-memory.dmp	family_expiro1
behavioral2/memory/540-2-0x0000000000D00000-0x0000000000DFE000-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_d2605cb93cb77384fff7bbd368e7c456.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d2605cb93cb77384fff7bbd368e7c456.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d2605cb93cb77384fff7bbd368e7c456.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:540

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

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Downloads

memory/540-0-0x0000000000D6B000-0x0000000000DFE000-memory.dmp

Filesize
588KB

Download
memory/540-1-0x0000000000D6B000-0x0000000000DFE000-memory.dmp

Filesize
588KB

Download
memory/540-2-0x0000000000D00000-0x0000000000DFE000-memory.dmp

Filesize
1016KB

Download
memory/540-3-0x0000000000D00000-0x0000000000DFE000-memory.dmp

Filesize
1016KB

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