expiro | da1381604401ccf449e9c947159bdf76f984abf41cf0322f98c5d5fab212e063

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 06:41

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General

Target

JaffaCakes118_6ad76c3437eb90ce6d6e9408272fd9c0.exe
Size

632KB
MD5

6ad76c3437eb90ce6d6e9408272fd9c0
SHA1

b71c51d59ac329139ca5a4e9f1289bbe8f991c75
SHA256

da1381604401ccf449e9c947159bdf76f984abf41cf0322f98c5d5fab212e063
SHA512

2816574d925b1e2f07a511b298db5e39fe775c430d01e3d00730174e5d212a7f3905c2c9ca57ac938ea94d1d5fb9aa37a5dd00cb78537359324f4272aeeeaf49
SSDEEP

12288:5702nnaQgK/7ThggPTf2JCRb3/Ld+jgHqFCWwLdnjR98UrhIn:57/bbsCRbwGLJ8UrhIn

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/2132-3-0x0000000001000000-0x000000000125D000-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_6ad76c3437eb90ce6d6e9408272fd9c0.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ad76c3437eb90ce6d6e9408272fd9c0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ad76c3437eb90ce6d6e9408272fd9c0.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2132

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/2132-0-0x0000000001000000-0x000000000125D000-memory.dmp

Filesize
2.4MB

Download
memory/2132-1-0x0000000000C60000-0x0000000000EBD000-memory.dmp

Filesize
2.4MB

Download
memory/2132-2-0x000000000100E000-0x0000000001010000-memory.dmp

Filesize
8KB

Download
memory/2132-3-0x0000000001000000-0x000000000125D000-memory.dmp

Filesize
2.4MB

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