expiro | 9586bae19403934e7ffe4213a96ba3bda4cd5f8c875d46b905134e9952ab535e

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 07:17

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General

Target

JaffaCakes118_7863367c245b1a6a4c2c5b2e6cf88e90.exe
Size

532KB
MD5

7863367c245b1a6a4c2c5b2e6cf88e90
SHA1

e355808e4709aa0dc63ecffbbe77e47a79049123
SHA256

9586bae19403934e7ffe4213a96ba3bda4cd5f8c875d46b905134e9952ab535e
SHA512

a0ff643458606cd4c9faffcb130614d7c85cc4d6b540beca4470968658f0ef31c4aa596859e2b738349208a591d4d838b6a9b78bcdaed78de6ec66bce6118e9b
SSDEEP

12288:RcnqOsOhRrBJqDP2kLZRfaGEUUfNNf2A8rI/X4/0:aZ17JqDP2aZ4xfNNO1IP4/

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
behavioral1/memory/1748-2-0x0000000001000000-0x00000000011A0000-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_7863367c245b1a6a4c2c5b2e6cf88e90.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7863367c245b1a6a4c2c5b2e6cf88e90.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7863367c245b1a6a4c2c5b2e6cf88e90.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1748

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/1748-0-0x0000000001000000-0x00000000011A0000-memory.dmp

Filesize
1.6MB

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memory/1748-1-0x0000000001002000-0x0000000001003000-memory.dmp

Filesize
4KB

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memory/1748-2-0x0000000001000000-0x00000000011A0000-memory.dmp

Filesize
1.6MB

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